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Petri F, Mahmoud OK, Ranganath N, El Zein S, Abu Saleh O, Berbari EF, Fida M. Plasma Microbial Cell-free DNA Next-generation Sequencing Can Be a Useful Diagnostic Tool in Patients With Osteoarticular Infections. Open Forum Infect Dis 2024; 11:ofae328. [PMID: 38989532 PMCID: PMC11234144 DOI: 10.1093/ofid/ofae328] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2024] [Accepted: 06/15/2024] [Indexed: 07/12/2024] Open
Abstract
Background Recent advances in shotgun metagenomic sequencing (sMGS) for detecting microbial cell-free DNA (mcfDNA) in peripheral blood have shown promise across various patient populations. This study evaluates the application of sMGS for diagnosing osteoarticular infections (OAIs), a condition with significant diagnostic challenges. Methods We conducted a retrospective analysis on 73 patients suspected of OAIs at the Mayo Clinic from 2019 to 2023, incorporating mcfDNA sMGS (Karius test [KT]) into their diagnostic evaluation. We categorized the clinical impact of KT on OAI diagnoses and management into 4 distinct outcomes. (1) KT was able to confirm an established diagnosis, (2) KT supported noninfectious diseases diagnosis, (3) KT established an unsuspected diagnosis, (4) KT did not add relevant information. Results In our cohort, KT was performed in 73 patients. Among the infected individuals, KT yielded positive results in 22 of 43 (51.2%) cases. Of these 22 cases, 11 (50%) showed agreement with conventional diagnostic workup, whereas in 5 (22.7%) cases, the KT established an unsuspected diagnosis. Native vertebral osteomyelitis diagnosis (P < .001) or OAIs with concomitant presence of endocarditis or endovascular infection (P = .005) were statistically associated with a definite, probable, or possible diagnostic certainty of KT result. Conclusions In complex OAIs, KT enhanced diagnostic accuracy by 11.6%, proving especially beneficial in diagnosing native vertebral osteomyelitis and infections with concurrent endocarditis or endovascular complications. Our findings underscore the utility of KT in the diagnostic workflow for challenging OAI cases, potentially altering clinical management for a significant subset of patients.
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Affiliation(s)
- Francesco Petri
- Division of Public Health, Infectious Diseases and Occupational Medicine, Department of Medicine, Mayo Clinic College of Medicine and Science, Mayo Clinic, Rochester, Minnesota, USA
- Department of Infectious Diseases, ASST Fatebenefratelli Sacco, “L. Sacco” University Hospital, Milan, Italy
| | - Omar K Mahmoud
- Division of Public Health, Infectious Diseases and Occupational Medicine, Department of Medicine, Mayo Clinic College of Medicine and Science, Mayo Clinic, Rochester, Minnesota, USA
| | - Nischal Ranganath
- Division of Public Health, Infectious Diseases and Occupational Medicine, Department of Medicine, Mayo Clinic College of Medicine and Science, Mayo Clinic, Rochester, Minnesota, USA
| | - Said El Zein
- Division of Public Health, Infectious Diseases and Occupational Medicine, Department of Medicine, Mayo Clinic College of Medicine and Science, Mayo Clinic, Rochester, Minnesota, USA
| | - Omar Abu Saleh
- Division of Public Health, Infectious Diseases and Occupational Medicine, Department of Medicine, Mayo Clinic College of Medicine and Science, Mayo Clinic, Rochester, Minnesota, USA
| | - Elie F Berbari
- Division of Public Health, Infectious Diseases and Occupational Medicine, Department of Medicine, Mayo Clinic College of Medicine and Science, Mayo Clinic, Rochester, Minnesota, USA
| | - Madiha Fida
- Division of Public Health, Infectious Diseases and Occupational Medicine, Department of Medicine, Mayo Clinic College of Medicine and Science, Mayo Clinic, Rochester, Minnesota, USA
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Shi X, Li M, Ni H, Wu Y, Li Y, Chen X, Xu Y. Integrative gene expression analysis and animal model reveal immune- and autophagy-related biomarkers in osteomyelitis. Immun Inflamm Dis 2024; 12:e1339. [PMID: 38990187 PMCID: PMC11238574 DOI: 10.1002/iid3.1339] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2024] [Revised: 04/26/2024] [Accepted: 06/29/2024] [Indexed: 07/12/2024] Open
Abstract
BACKGROUND Osteomyelitis (OM) is recognized as a significant challenge in orthopedics due to its complex immune and inflammatory responses. The prognosis heavily depends on timely diagnosis, accurate classification, and assessment of severity. Thus, the identification of diagnostic and classification-related genes from an immunological standpoint is crucial for the early detection and tailored treatment of OM. METHODS Transcriptomic data for OM was sourced from the Gene Expression Omnibus (GEO) database, leading to the identification of autophagy- and immune-related differentially expressed genes (AIR-DEGs) through differential expression analysis. Diagnostic and classification models were subsequently developed. The CIBERSORT algorithm was utilized to examine immune cell infiltration in OM, and the relationship between OM clusters and various immune cells was explored. Key AIR-DEGs were further validated through the creation of OM animal models. RESULTS Analysis of the transcriptomic data revealed three AIR-DEGs that played a significant role in immune responses and pathways. Nomogram and receiver operating characteristic curve analyses were performed, demonstrating excellent diagnostic capability for differentiating between OM patients and healthy individuals, with an area under the curve of 0.814. An unsupervised clustering analysis discerned two unique patterns of autophagy- and immune-related genes, as well as gene patterns. Further exploration into immune infiltration exhibited notable variances across different subtypes, especially between OM cluster 1 and gene cluster A, highlighting their potential role in mitigating inflammatory responses by regulating immune activities. Moreover, the mRNA and protein expression levels of three AIR-DEGs in the animal model were aligned with those in the training and validation data sets. CONCLUSIONS From an immunological perspective, a diagnostic model was successfully developed, and two distinct clustering patterns were identified. These contributions offer a significant resource for the early detection and personalized immunotherapy of patients with OM.
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Affiliation(s)
- Xiangwen Shi
- Kunming Medical University, Kunming, China
- Laboratory of Yunnan Traumatology and Orthopedics Clinical Medical Center, Yunnan Orthopedics and Sports Rehabilitation Clinical Medical Research Center, Kunming, China
- Department of Orthopedic Surgery, 920th Hospital of Joint Logistics Support Force of PLA, Kunming, Yunnan, China
| | - Mingjun Li
- Laboratory of Yunnan Traumatology and Orthopedics Clinical Medical Center, Yunnan Orthopedics and Sports Rehabilitation Clinical Medical Research Center, Kunming, China
- Department of Orthopedic Surgery, 920th Hospital of Joint Logistics Support Force of PLA, Kunming, Yunnan, China
| | - Haonan Ni
- Orthopedic Department, First People's Hospital of Huzhou, First Affiliated Hospital of Huzhou University, Huzhou, China
| | - Yipeng Wu
- Kunming Medical University, Kunming, China
- Laboratory of Yunnan Traumatology and Orthopedics Clinical Medical Center, Yunnan Orthopedics and Sports Rehabilitation Clinical Medical Research Center, Kunming, China
- Department of Orthopedic Surgery, 920th Hospital of Joint Logistics Support Force of PLA, Kunming, Yunnan, China
| | - Yang Li
- Laboratory of Yunnan Traumatology and Orthopedics Clinical Medical Center, Yunnan Orthopedics and Sports Rehabilitation Clinical Medical Research Center, Kunming, China
- Department of Orthopedic Surgery, 920th Hospital of Joint Logistics Support Force of PLA, Kunming, Yunnan, China
| | - Xianjun Chen
- Department of Neurosurgery, Nanping First Hospital Affiliated to Fujian Medical University, Nanping, Fujian, China
| | - Yongqing Xu
- Laboratory of Yunnan Traumatology and Orthopedics Clinical Medical Center, Yunnan Orthopedics and Sports Rehabilitation Clinical Medical Research Center, Kunming, China
- Department of Orthopedic Surgery, 920th Hospital of Joint Logistics Support Force of PLA, Kunming, Yunnan, China
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Patel K, Rizzo AN, Bach J, DeVoe W. Suture fixation of traumatic rib fracture flail segment with Klebsiella osteomyelitis. Trauma Case Rep 2024; 51:100996. [PMID: 38633376 PMCID: PMC11021944 DOI: 10.1016/j.tcr.2024.100996] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/20/2024] [Indexed: 04/19/2024] Open
Abstract
We report the case of a 71-year-old male who initially presented with urosepsis and was found to have a rib fracture of his right 6th rib with a flail segment and an associated abscess. Given the concern for infection, surgical rib fixation with titanium plating was not pursued during the washout of his abscess and instead, he successfully underwent rib fracture stabilization with bilateral suture transfixation. He was continued on a prolonged course of antibiotics for Klebsiella pneumonia osteomyelitis and was discharged uneventfully with optimal pain control and adequate respiratory effort.
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Affiliation(s)
- Krishna Patel
- Surgery, OhioHealth Riverside Methodist Hospital, Columbus 43214, USA
| | - Anthony N. Rizzo
- Surgery, OhioHealth Riverside Methodist Hospital, Columbus 43214, USA
| | - John Bach
- Surgery, OhioHealth Riverside Methodist Hospital, Columbus 43214, USA
| | - William DeVoe
- Surgery, OhioHealth Riverside Methodist Hospital, Columbus 43214, USA
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Mehta DD, Leucht P. Prevention and treatment of osteomyelitis after open tibia fractures. OTA Int 2024; 7:e309. [PMID: 38840709 PMCID: PMC11149744 DOI: 10.1097/oi9.0000000000000309] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2023] [Revised: 12/05/2023] [Accepted: 12/06/2023] [Indexed: 06/07/2024]
Abstract
Infection and chronic post-traumatic osteomyelitis of the tibia after open fracture are complex problems that cause significant morbidity and threaten the viability of a limb. Therefore, it is of utmost importance for the orthopaedic surgeon to understand both patient and treatment factors that modify the risk of developing these disastrous complications. Infection risk is largely based on severity of open injury in addition to inherent patient factors. Orthopaedic surgeons can work to mitigate this risk with prompt antibiotic administration, thorough and complete debridement, expedient fracture stabilization, and early wound closure. In the case osteomyelitis does occur, the surgeon should use a systematic multidisciplinary approach for eradication.
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Affiliation(s)
- Devan D. Mehta
- Department of Orthopedic Surgery, NYU Grossman School of Medicine—NYU Langone Orthopedic Hospital, New York, NY
| | - Philipp Leucht
- Department of Orthopedic Surgery, NYU Grossman School of Medicine—NYU Langone Orthopedic Hospital, New York, NY
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Guan X, Wu S, Ouyang S, Ren S, Cui N, Wu X, Xiang D, Chen W, Yu B, Zhao P, Wang B. Remodeling Microenvironment for Implant-Associated Osteomyelitis by Dual Metal Peroxide. Adv Healthc Mater 2024; 13:e2303529. [PMID: 38430010 DOI: 10.1002/adhm.202303529] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2023] [Revised: 01/02/2024] [Indexed: 03/03/2024]
Abstract
Implant-associated osteomyelitis (IAOM) is characterized by bone infection and destruction; current therapy of antibiotic treatment and surgical debridement often results in drug resistance and bone defect. It is challenging to develop an antibiotic-free bactericidal and osteogenic-enhanced strategy for IAOM. Herein, an IAOM-tailored antibacterial and osteoinductive composite of copper (Cu)-strontium (Sr) peroxide nanoparticles (CSp NPs), encapsulated in polyethylene glycol diacrylate (PEGDA) (CSp@PEGDA), is designed. The dual functional CSp NPs display hydrogen peroxide (H2O2) self-supplying and Fenton catalytic Cu2+ ions' release, generating plenty of hydroxyl radical (•OH) in a pH-responsive manner for bacterial killing, while the released Sr2+ promotes the in vitro osteogenicity regarding cell proliferation, alkaline phosphatase activity, extracellular matrix calcification, and osteo-associated genes expression. The integration of Cu2+ and Sr2+ in CSp NPs together with the coated PEGDA hydrogel ensures the stable and sustainable ion release during short- and long-term periods. Benefitted from the injectablity and photo-crosslink ability, CSp@PEGDA is able to thoroughly fill the infectious site and gelate in situ for bacterial elimination and bone regeneration, which is verified through in vivo evaluation using a clinical-simulating IAOM mouse model. These favorable abilities of CSp@PEGDA precisely meet the multiple therapeutic needs and pave a promising way for implant-associated osteomyelitis treatment.
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Affiliation(s)
- Xin Guan
- Guangdong Provincial Key Laboratory of Bone and Cartilage Regenerative Medicine, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, China
| | - Siyuan Wu
- Guangdong Provincial Key Laboratory of Bone and Cartilage Regenerative Medicine, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, China
| | - Sixue Ouyang
- School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou, 510640, China
| | - Shuchen Ren
- Guangdong Provincial Key Laboratory of Bone and Cartilage Regenerative Medicine, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, China
| | - Naiqian Cui
- Guangdong Provincial Key Laboratory of Bone and Cartilage Regenerative Medicine, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, China
| | - Xiaohu Wu
- Department of Orthopedics, Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou, 510515, China
| | - Dayong Xiang
- Division of Orthopaedic Trauma, Department of Orthopaedics, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, China
| | - Wenting Chen
- Department of Anesthesiology, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, China
| | - Bin Yu
- Guangdong Provincial Key Laboratory of Bone and Cartilage Regenerative Medicine, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, China
- Division of Orthopaedic Trauma, Department of Orthopaedics, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, China
| | - Peng Zhao
- NMPA Key Laboratory for Research and Evaluation of Drug Metabolism, Guangdong Provincial Key Laboratory of New Drug Screening, School of Pharmaceutical Sciences, Southern Medical University, Guangzhou, 510515, China
| | - Bowei Wang
- Guangdong Provincial Key Laboratory of Bone and Cartilage Regenerative Medicine, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, China
- Division of Orthopaedic Trauma, Department of Orthopaedics, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, China
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Tan TH, Tang CQY, Sreedharan S. A Case Report of Pin Site Osteomyelitis after 17 Years of External Fixator Application to Distal Radius Fracture. J Hand Microsurg 2024; 16:100025. [PMID: 38855521 PMCID: PMC11144636 DOI: 10.1055/s-0043-1762896] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/17/2023] Open
Abstract
This case report presents an uncommon long-term complication of external fixator application to distal radius fracture. Despite an initial uneventful fracture healing, the patient presented with Brodie's abscess with Staphylococcus aureus osteomyelitis at the previous pin site 17 years later. A diagnosis of late-onset osteomyelitis, as a manifestation of quiescence chronic osteomyelitis, was made.
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Affiliation(s)
- Tuan Hao Tan
- Yong Loo Lin School of Medicine, National University of Singapore, Singapore
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7
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Xu R, Li S, Zhang Y, Pu Y, Luo G, Wang X. Causal effects of gut microbiota on the risk of osteomyelitis: a Mendelian randomization study. Front Microbiol 2024; 15:1342172. [PMID: 38863758 PMCID: PMC11166080 DOI: 10.3389/fmicb.2024.1342172] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2023] [Accepted: 05/14/2024] [Indexed: 06/13/2024] Open
Abstract
Background Osteomyelitis is characterized by an inflammatory process initiated by microorganisms, leading to infection and subsequent degradation of bone tissue. Several studies have indicated a potential link between gut microbiota and the occurrence of osteomyelitis. Utilizing the benefits of Mendelian randomization, which mitigates issues of confounding and reverse causation, we employed this approach to ascertain the presence of a causal connection between gut microbiota and osteomyelitis. Additionally, we aimed to pinpoint gut microbiota that could potentially exert substantial influence. Methods We performed a rigorous screening of single nucleotide polymorphisms in GWAS summary statistics for gut microbiota and osteomyelitis. The 2,542 instrumental variables obtained after screening were subjected to MR analyses, including inverse variance weighting, weighted median, weighted mode, MR-Egger, and Mendelian randomization pleiotropy residual sum and outlier test. We then validated the reliability of the results by performing sensitivity analyses on the MR of 196 well-defined gut microbiota. Result We established a causal relationship between gut microbiota and osteomyelitis through MR analysis. Additionally, we identified a taxon of significant importance and six taxons with nominal significance. Specifically, the family Bacteroidales S24.7 group exhibited an association with a diminished risk of osteomyelitis development. Conversely, the class Bacilli, class Bacteroidia, order Bacteroidales, order Lactobacillales, family Streptococcaceae, and genus Coprococcus3 displayed an increased risk of developing osteomyelitis. The MR outcomes for these seven taxa remained stable throughout a series of sensitivity analyses. Conclusion This study demonstrated a causal relationship between gut microbiota and osteomyelitis by Mendelian randomization. We hope that this study will provide a new direction for the treatment of osteomyelitis, which has a paucity of therapeutic options.
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Affiliation(s)
- Ran Xu
- Department of Urology, Zhongshan Hospital Xiamen University, School of Medicine, Xiamen University, Xiamen, China
| | - Si Li
- Department of Pediatric Surgery, Women and Children’s Hospital, School of Medicine, Xiamen University, Xiamen, China
| | - Ying Zhang
- Department of Urology, Zhongshan Hospital Xiamen University, The School of Clinical Medicine, Fujian Medical University, Xiamen, China
| | - Yue Pu
- Department of Urology, Zhongshan Hospital Xiamen University, School of Medicine, Xiamen University, Xiamen, China
| | - Guangcheng Luo
- Department of Urology, Zhongshan Hospital Xiamen University, School of Medicine, Xiamen University, Xiamen, China
- Department of Urology, Zhongshan Hospital Xiamen University, The School of Clinical Medicine, Fujian Medical University, Xiamen, China
| | - Xinjun Wang
- Department of Urology, Zhongshan Hospital Xiamen University, School of Medicine, Xiamen University, Xiamen, China
- Department of Urology, Zhongshan Hospital Xiamen University, The School of Clinical Medicine, Fujian Medical University, Xiamen, China
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8
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Liu HZ, Liang J, Hu AX. Type 2 diabetes mediates the causal relationship between obesity and osteomyelitis: A Mendelian randomization study. Medicine (Baltimore) 2024; 103:e38214. [PMID: 38758842 PMCID: PMC11098215 DOI: 10.1097/md.0000000000038214] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/27/2023] [Accepted: 04/22/2024] [Indexed: 05/19/2024] Open
Abstract
Mendelian randomization (MR) analysis was used to determine the causal relationship between Type 2 diabetes (T2D) and osteomyelitis (OM). We performed MR analysis using pooled data from different large-scale genome-wide association studies (GWAS). Instrumental variables were selected based on genome-wide significance, instrumental strength was assessed using F-values, and thresholds for the number of exposed phenotypes were further adjusted by Bonferroni correction. univariable and multivariable MR analyses were performed to assess causal effects and proportions mediated by T2D. IVW (inverse variance weighting) showed a significant genetic effect of osteomyelitis on the following: After correction by Bonferroni, univariable analyses showed that childhood body mass index (BMI) was not significantly associated with genetic susceptibility to OM [odds ratio (OR), 1.26; 95% confidence interval (CI), 1.02, 1.55; P = .030], not significantly associated with adulthood BMI (OR, 1.28; 95% CI, 1.02, 1.61; P = .034), significantly associated with waist circumference (OR, 1.84; 95% CI, 1.51, 2.24; P < .001), and significantly associated with hip circumference (OR, 1.52; 95% CI, 1.31, 1.76; P < .001). Meanwhile, multivariable analyses showed no significant effect of childhood BMI on OM (OR, 1.16; 95% CI, 0.84, 1.62; P = .370), no significant effect of adulthood BMI on OM (OR, 0.42; 95% CI, 0.21, 0.84; P = .015), a significant association between waist circumference and OM (OR, 4.30; 95% CI, 1.89, 9.82; P = .001), T2D mediated 10% (95% CI, 0.02, 0.14), and no significant association between hip circumference and OM (OR, 1.01; 95% CI, 0.54, 1.90; P = .968). Our study provides evidence for a genetically predicted causal relationship among obesity, T2D, and OM. We demonstrate that increased waist circumference is positively associated with an increased risk of OM and that T2D mediates this relationship. Clinicians should be more cautious in the perioperative management of osteomyelitis surgery in obese patients with T2D. In addition, waist circumference may be a more important criterion to emphasize and strictly control than other measures of obesity.
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Affiliation(s)
- Heng-Zhi Liu
- Department of Orthopaedics, The First College of Clinical Medical Science, China Three Gorges University, Yichang, China
- Department of Orthopaedics, Yichang Central People’s Hospital, Yichang, China
| | - Jie Liang
- Department of Orthopaedics, The First College of Clinical Medical Science, China Three Gorges University, Yichang, China
- Department of Orthopaedics, Yichang Central People’s Hospital, Yichang, China
| | - Ai-Xin Hu
- Department of Orthopaedics, The First College of Clinical Medical Science, China Three Gorges University, Yichang, China
- Department of Orthopaedics, Yichang Central People’s Hospital, Yichang, China
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Qin L, Yang S, Zhao C, Yang J, Li F, Xu Z, Yang Y, Zhou H, Li K, Xiong C, Huang W, Hu N, Hu X. Prospects and challenges for the application of tissue engineering technologies in the treatment of bone infections. Bone Res 2024; 12:28. [PMID: 38744863 PMCID: PMC11094017 DOI: 10.1038/s41413-024-00332-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2023] [Revised: 03/08/2024] [Accepted: 04/01/2024] [Indexed: 05/16/2024] Open
Abstract
Osteomyelitis is a devastating disease caused by microbial infection in deep bone tissue. Its high recurrence rate and impaired restoration of bone deficiencies are major challenges in treatment. Microbes have evolved numerous mechanisms to effectively evade host intrinsic and adaptive immune attacks to persistently localize in the host, such as drug-resistant bacteria, biofilms, persister cells, intracellular bacteria, and small colony variants (SCVs). Moreover, microbial-mediated dysregulation of the bone immune microenvironment impedes the bone regeneration process, leading to impaired bone defect repair. Despite advances in surgical strategies and drug applications for the treatment of bone infections within the last decade, challenges remain in clinical management. The development and application of tissue engineering materials have provided new strategies for the treatment of bone infections, but a comprehensive review of their research progress is lacking. This review discusses the critical pathogenic mechanisms of microbes in the skeletal system and their immunomodulatory effects on bone regeneration, and highlights the prospects and challenges for the application of tissue engineering technologies in the treatment of bone infections. It will inform the development and translation of antimicrobial and bone repair tissue engineering materials for the management of bone infections.
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Affiliation(s)
- Leilei Qin
- Department of Orthopaedics, The First Affiliated Hospital of Chongqing Medical University, Chongqing, 400016, China
- Orthopedic Laboratory of Chongqing Medical University, Chongqing, 400016, China
| | - Shuhao Yang
- Department of Orthopaedics, The First Affiliated Hospital of Chongqing Medical University, Chongqing, 400016, China
- Orthopedic Laboratory of Chongqing Medical University, Chongqing, 400016, China
| | - Chen Zhao
- Department of Orthopaedics, The First Affiliated Hospital of Chongqing Medical University, Chongqing, 400016, China
- Orthopedic Laboratory of Chongqing Medical University, Chongqing, 400016, China
| | - Jianye Yang
- Department of Orthopaedics, The First Affiliated Hospital of Chongqing Medical University, Chongqing, 400016, China
- Orthopedic Laboratory of Chongqing Medical University, Chongqing, 400016, China
| | - Feilong Li
- Department of Orthopaedics, The First Affiliated Hospital of Chongqing Medical University, Chongqing, 400016, China
- Orthopedic Laboratory of Chongqing Medical University, Chongqing, 400016, China
| | - Zhenghao Xu
- Department of Orthopaedics, The First Affiliated Hospital of Chongqing Medical University, Chongqing, 400016, China
- Orthopedic Laboratory of Chongqing Medical University, Chongqing, 400016, China
| | - Yaji Yang
- Department of Orthopaedics, The First Affiliated Hospital of Chongqing Medical University, Chongqing, 400016, China
- Orthopedic Laboratory of Chongqing Medical University, Chongqing, 400016, China
| | - Haotian Zhou
- Department of Orthopaedics, The First Affiliated Hospital of Chongqing Medical University, Chongqing, 400016, China
- Orthopedic Laboratory of Chongqing Medical University, Chongqing, 400016, China
| | - Kainan Li
- Clinical Medical College and Affiliated Hospital of Chengdu University, Chengdu University, Chengdu, Sichuan, 610081, China
| | - Chengdong Xiong
- University of Chinese Academy of Sciences, Bei Jing, 101408, China
| | - Wei Huang
- Department of Orthopaedics, The First Affiliated Hospital of Chongqing Medical University, Chongqing, 400016, China
- Orthopedic Laboratory of Chongqing Medical University, Chongqing, 400016, China
| | - Ning Hu
- Department of Orthopaedics, The First Affiliated Hospital of Chongqing Medical University, Chongqing, 400016, China.
- Orthopedic Laboratory of Chongqing Medical University, Chongqing, 400016, China.
| | - Xulin Hu
- Clinical Medical College and Affiliated Hospital of Chengdu University, Chengdu University, Chengdu, Sichuan, 610081, China.
- Department of Biotherapy, Cancer Center and State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, Sichuan, 610041, China.
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Xia S, Gowda P, Silva FD, Guirguis M, Ravi V, Xi Y, Chhabra A. Comparison between ZOOMit DWI and conventional DWI in the assessment of foot and ankle infection: a prospective study. Eur Radiol 2024; 34:3483-3492. [PMID: 37848770 DOI: 10.1007/s00330-023-10315-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2023] [Revised: 08/16/2023] [Accepted: 08/23/2023] [Indexed: 10/19/2023]
Abstract
OBJECTIVE The study aimed to compare ZOOMit diffusion-weighted imaging (DWI) MRI with conventional DWI MRI for visualizing small bones in the foot, soft tissue abscesses, and osteomyelitis. MATERIALS AND METHODS The cohort consisted of a consecutive series of patients with potential foot and ankle infections referred for MR imaging. Patients were imaged using both conventional and ZOOMit DWI in the same setting. Blinded reads were then conducted in separate settings and independent of known clinical diagnosis by two expert radiologists. The results from the reads were compared statistically using paired t-tests and with biopsy specimen analysis, both anatomopathological and microbiological. RESULTS There was improvement in fat suppression using ZOOMit sequence compared to conventional DWI (p = .001) with no significant difference in motion artifacts (p = .278). ZOOMit had a higher rate of concordance with pathology findings for osteomyelitis (72%, 31/43 cases) compared with conventional DWI (60%, 26/43 cases). ZOOMit also identified 46 additional small bones of the foot and ankle (405/596, 68.0%) than conventional DWI (359/596, 60.2%). Conventional DWI however exhibited a more negative contrast-to-noise ratio (CNR) than ZOOMit (p = 0.001). CONCLUSION ZOOMit DWI improves distal extremity proton diffusion assessment and helps visualize more bones in the foot, with less image distortion and improved fat saturation at the expense of reduced CNR. This makes it a viable option for assessing lower extremity infections. CLINICAL RELEVANCE STATEMENT This study highlights the novel utilization of ZOOMit diffusion-weighted imaging (DWI) for the assessment of lower extremity lesions compared to conventional DWI. KEY POINTS • Distal extremity diffusion-weighted imaging (DWI) is often limited. • ZOOMit DWI displayed improved fat suppression with less motion artifacts and better visualization of the lower extremity bones than conventional DWI. • ZOOMit shows decreased contrast-to-noise ratio than conventional DWI.
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Affiliation(s)
| | | | | | | | | | - Yin Xi
- UT Southwestern, Dallas, TX, USA
| | - Avneesh Chhabra
- UT Southwestern, Dallas, TX, USA.
- Radiology & Orthopedic Surgery, UT Southwestern, Dallas, TX, 75390-9178, USA.
- Johns Hopkins University, Baltimore, MD, USA.
- University of Dallas, Richardson, TX, USA.
- Walton Centre for Neuroscience, Liverpool, UK.
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Huffman SS, Berger LE, Li K, Spoer DL, Gupta NJ, Truong BN, Akbari CM, Evans KK. Muscle versus Fascia Free Tissue Transfer for Treatment of Chronic Osteomyelitis in the Comorbid Population. J Reconstr Microsurg 2024; 40:253-261. [PMID: 37579781 DOI: 10.1055/a-2153-2285] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/16/2023]
Abstract
BACKGROUND In patients with chronic lower extremity (LE) wounds, chronic osteomyelitis confers additional complexity to achieving adequate treatment. Previous reviews demonstrate increased rates of osteomyelitis recurrence in patients who receive muscle flaps compared with fasciocutaneous flaps for LE limb salvage; however, these studies were not limited to atraumatic populations who receive exclusively free flaps. Thus, this study compared rates of recurrence in chronic osteomyelitis patients undergoing LE reconstruction with fasciocutaneous versus muscle free flaps. METHODS Patients undergoing free tissue transfer (FTT) between July 2011 and July 2021 were retrospectively reviewed. Patients were stratified into fasciocutaneous and muscle free flap groups. Primary outcomes included osteomyelitis recurrence, flap complications, limb salvage, and ambulatory status. RESULTS Forty-eight patients with pathologic diagnosis of chronic osteomyelitis of the wound bed were identified, of which 58.3% received fasciocutaneous (n = 28) and 41.7% received muscle flaps (n = 20). The most common comorbidities included diabetes mellitus (n = 29, 60.4%), peripheral neuropathy (n = 27, 56.3%) and peripheral vascular disease (n = 24, 50.0%). Methicillin-resistant or methicillin -sensitive Staphylococcus aureus were the most common pathogen in 18.7% (n = 9) of procedures. The majority of patients underwent a median of three debridements followed by negative pressure wound therapy prior to receiving FTT. At a median follow-up of 16.6 months, the limb salvage and ambulatory rates were 79.2 (n = 38) and 83.3% (n = 40), respectively. The overall rate of microsurgical flap success was 93.8% (n = 45). Osteomyelitis recurred in 25% of patients (n = 12) at a median duration of 4.0 months. There were no significant differences in rates of osteomyelitis recurrence, flap complications, limb salvage, ambulation, and mortality. On multivariate analysis, flap composition remained a nonsignificant predictor of osteomyelitis recurrence (odds ratio: 0.975, p = 0.973). CONCLUSION This study demonstrates that flap composition may not influence recurrence of osteomyelitis following free flap reconstruction of chronic LE wounds, suggesting that optimal flap selection should be based on wound characteristics and patient goals.
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Affiliation(s)
- Samuel S Huffman
- Department of Plastic and Reconstructive Surgery, Georgetown University School of Medicine, Washington, District of Columbia
- Department of Plastic and Reconstructive Surgery, MedStar Georgetown University Hospital, Washington, District of Columbia
| | - Lauren E Berger
- Department of Plastic and Reconstructive Surgery, MedStar Georgetown University Hospital, Washington, District of Columbia
- Plastic and Reconstructive Surgery Division, Rutgers Robert Wood Johnson Medical School, New Brunswick, New Jersey
| | - Karen Li
- Department of Plastic and Reconstructive Surgery, Georgetown University School of Medicine, Washington, District of Columbia
| | - Daisy L Spoer
- Department of Plastic and Reconstructive Surgery, Georgetown University School of Medicine, Washington, District of Columbia
- Department of Plastic and Reconstructive Surgery, MedStar Georgetown University Hospital, Washington, District of Columbia
| | - Nisha J Gupta
- Department of Plastic and Reconstructive Surgery, Georgetown University School of Medicine, Washington, District of Columbia
| | - Brian N Truong
- Department of Plastic and Reconstructive Surgery, Georgetown University School of Medicine, Washington, District of Columbia
| | - Cameron M Akbari
- Department of Vascular Surgery, MedStar Georgetown University Hospital, Washington, District of Columbia
| | - Karen K Evans
- Department of Plastic and Reconstructive Surgery, MedStar Georgetown University Hospital, Washington, District of Columbia
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Zhang W, Lu H, Zhang W, Hu J, Zeng Y, Hu H, Shi L, Xia J, Xu F. Inflammatory Microenvironment-Responsive Hydrogels Enclosed with Quorum Sensing Inhibitor for Treating Post-Traumatic Osteomyelitis. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2024; 11:e2307969. [PMID: 38482752 PMCID: PMC11132068 DOI: 10.1002/advs.202307969] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/22/2023] [Revised: 01/22/2024] [Indexed: 05/29/2024]
Abstract
Non-antibiotic strategies are desperately needed to treat post-traumatic osteomyelitis (PTO) due to the emergence of superbugs, complex inflammatory microenvironments, and greatly enriched biofilms. Previously, growing evidence indicated that quorum sensing (QS), a chemical communication signal among bacterial cells, can accelerate resistance under evolutionary pressure. This study aims to develop a medical dressing to treat PTO by inhibiting QS and regulating the inflammatory microenvironment, which includes severe oxidative stress and acid abscesses, through a reactive oxygen species (ROS)-responsive bond between N1- (4-borobenzoyl)-N3-(4-borobenzoyl)-the N1, the N1, N3, N3-tetramethylpropane-1,3-diamine (TSPBA) and polyvinyl alcohol (PVA), and the amino side chain of hyperbranched polylysine (HBPL). Physically enclosed QS inhibitors subsequently exerted the antibacterial effects. This hydrogel can scavenge hydrogen peroxide (H2O2), superoxide anion free radical (·O2 -), hydroxyl radicals (·OH) and 2,2-di(4-tert-octylphenyl)-1-picryl-hydrazyl (DPPH) to reduce oxidative stress and inhibit "bacteria-to-bacteria communication", thus clearing planktonic bacteria and biofilms, accelerating bacterial plasmolysis, reducing bacterial virulence and interfering with membrane transport. After in vivo treatment with hydrogel, nearly all bacteria are eliminated, inflammation is effectively inhibited, and osteogenesis and bone repair are promoted to facilitate recovery from PTO. The work demonstrates the clinical translational potential of the hydrogel in the treatment of drug-resistant bacteria induced PTO.
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Affiliation(s)
- Wenting Zhang
- Department of Infectious DiseasesThe Second Affiliated HospitalZhejiang University School of MedicineHangzhouZhejiang310009China
- Key Laboratory of Multiple Organ Failure (Zhejiang University), Ministry of EducationHangzhou310053China
- Research Center for Life Science and Human HealthBinjiang Institute of Zhejiang UniversityHangzhou310053China
| | - Huidan Lu
- Department of Infectious DiseasesThe Second Affiliated HospitalZhejiang University School of MedicineHangzhouZhejiang310009China
- Key Laboratory of Multiple Organ Failure (Zhejiang University), Ministry of EducationHangzhou310053China
- Research Center for Life Science and Human HealthBinjiang Institute of Zhejiang UniversityHangzhou310053China
| | - Wanying Zhang
- Department of Infectious DiseasesThe Second Affiliated HospitalZhejiang University School of MedicineHangzhouZhejiang310009China
- Key Laboratory of Multiple Organ Failure (Zhejiang University), Ministry of EducationHangzhou310053China
- Research Center for Life Science and Human HealthBinjiang Institute of Zhejiang UniversityHangzhou310053China
| | - Jiahao Hu
- Department of General SurgerySir Run‐Run Shaw HospitalZhejiang University School of MedicineHangzhouZhejiang310016China
| | - Yifei Zeng
- Department of Infectious DiseasesThe Second Affiliated HospitalZhejiang University School of MedicineHangzhouZhejiang310009China
- Key Laboratory of Multiple Organ Failure (Zhejiang University), Ministry of EducationHangzhou310053China
- Research Center for Life Science and Human HealthBinjiang Institute of Zhejiang UniversityHangzhou310053China
| | - Huiqun Hu
- Department of Infectious DiseasesThe Second Affiliated HospitalZhejiang University School of MedicineHangzhouZhejiang310009China
- Key Laboratory of Multiple Organ Failure (Zhejiang University), Ministry of EducationHangzhou310053China
- Research Center for Life Science and Human HealthBinjiang Institute of Zhejiang UniversityHangzhou310053China
| | - Liyun Shi
- Institute of Translational MedicineZhejiang Shuren UniversityHangzhouZhejiang310015China
| | - Jingyan Xia
- Department of Radiation TherapyThe Second Affiliated HospitalZhejiang University School of MedicineHangzhouZhejiang310009China
| | - Feng Xu
- Department of Infectious DiseasesThe Second Affiliated HospitalZhejiang University School of MedicineHangzhouZhejiang310009China
- Key Laboratory of Multiple Organ Failure (Zhejiang University), Ministry of EducationHangzhou310053China
- Research Center for Life Science and Human HealthBinjiang Institute of Zhejiang UniversityHangzhou310053China
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Bobak L, Dorney I, Lavu MS, Mistovich RJ, Kaelber DC. Increased risk of osteomyelitis and septic arthritis in osteogenesis imperfecta. J Pediatr Orthop B 2024; 33:290-296. [PMID: 37669133 PMCID: PMC10894311 DOI: 10.1097/bpb.0000000000001121] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 09/07/2023]
Abstract
We investigated the prevalence of osteomyelitis and septic arthritis in individuals with osteogenesis imperfecta (OI) as compared to the general population. We performed a retrospective cohort study utilizing the TriNetX Analytics platform, a federated, aggregated electronic health record (EHR) research network containing national, deidentified EHR data. We queried patients with OI, based on encounter diagnoses. Patients in this group with any occurrence of osteomyelitis or septic arthritis were recorded. A control cohort was established to compare the prevalence in patients without OI. Of 8444 individuals with OI, 433 (5.13%) had encounter diagnoses for osteomyelitis and 61 (0.72%) had encounter diagnoses for septic arthritis. In comparison, of 79 176 436 patients without OI, 352 009 (0.44%) had encounter diagnoses for osteomyelitis, while 106 647 (0.13%) had encounter diagnoses for septic arthritis. The relative risk for osteomyelitis in OI patients was 11.53 (95% CI: 10.52-12.64), while the relative risk for septic arthritis was 5.36 (95% CI: 4.18-6.89). The relative risk for osteomyelitis in pediatric OI patients was 30.55 (95% CI: 24.35-38.28). To our knowledge, this is the first study investigating musculoskeletal infections in patients with OI, as well as the first to report the overall prevalence in the general population. Clinicians may benefit from a high index of suspicion for musculoskeletal infections in OI patients with corresponding symptoms. Further study is warranted to investigate if modifications to conventional diagnostic pathways and criteria are valuable in this population. Level of evidence: Retrospective Cohort Study - Level II.
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Affiliation(s)
- Lukas Bobak
- Case Western Reserve University School of Medicine
| | - Ian Dorney
- Case Western Reserve University School of Medicine
| | | | - R Justin Mistovich
- Case Western Reserve University School of Medicine
- Department of Orthopaedic Surgery, The MetroHealth System
- Division of Pediatric Orthopaedic Surgery, University Hospitals Rainbow Babies and Children's Hospital
| | - David C Kaelber
- Case Western Reserve University School of Medicine
- Departments of Internal Medicine
- Pediatrics
- Population and Quantitative Health Sciences, Case Western Reserve University
- The Center for Clinical Informatics Research and Education, The MetroHealth System, Cleveland, Ohio, USA
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Kannan N, Ramalingam K, Ramani P, Krishnan M. Exploring Prevalence Trends of Jaw Bone Pathologies: A Three-Year Institutional Study. Cureus 2024; 16:e60574. [PMID: 38894787 PMCID: PMC11184533 DOI: 10.7759/cureus.60574] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/18/2024] [Indexed: 06/21/2024] Open
Abstract
Background Head and neck bone pathologies cover various conditions with diverse causes. Infections like osteomyelitis and dental abscesses can spread to soft tissues and bones, causing tissue death, inflammation, and systemic effects. Benign and malignant tumors can develop from soft tissue, cartilage, or bone, posing challenges for diagnosis and treatment. Studies on their prevalence in local populations are rare, obscuring our understanding of regional health dynamics. Aim In this study, we aimed to assess the prevalence of bone pathologies documented over the last three years from 2021 to 2023. Materials and methods Histopathologically confirmed cases of bone pathologies at Saveetha Dental College and Hospitals, Saveetha Institute of Medical and Technical Sciences, Saveetha University, Chennai, India, were gathered from the institutional database (DIAS: Dental Information Archiving Software) from January 1, 2021, to December 31, 2023. They were categorized into groups of infectious and inflammatory lesions, fibro-osseous lesions, malignancies originating from bone, malignancies invading bone, and miscellaneous conditions. The data was then compiled into a Google spreadsheet (Google, Inc., Mountain View, USA) for further analysis. Graphs were created to visualize the prevalence of bone pathologies enabling a descriptive exploration of temporal trends. Results A total of 2626 biopsy records were reviewed. Among these, 242 (9.21%) cases of bone-related pathologies were included, and the remaining 2384 (90.79%) entities without any mention of bone were excluded. Overall, considering all three years, 43.8% (100) bone-related lesions were reported in 2021, 30.3% (77) in 2022 and 25.9% (65) in the year 2023. Under each category, infectious and inflammatory lesions for 40.5% (98), fibro-osseous lesions for 14.9% (36), benign lesions for 2.9% (7), malignancies originating from bone for 1.7% (4), malignancies invading bone for 38% (93), and miscellaneous conditions for 1.65% (4) were reported. The highest number of infectious and inflammatory pathologies (53%) were reported in 2021. A steep fall was observed in 2022 and 2023 under the infectious and inflammatory category. The malignancies invading the bone showed almost similar distribution in all three years. Conclusion The observed variations highlight the unpredictability of bone pathologies, involving the jaw bones. We emphasize continuous observation and analysis to comprehend changing patterns in bone health.
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Affiliation(s)
- Neha Kannan
- Oral Pathology and Microbiology, Saveetha Dental College and Hospitals, Saveetha Institute of Medical and Technical Sciences, Saveetha University, Chennai, IND
| | - Karthikeyan Ramalingam
- Oral Pathology and Microbiology, Saveetha Dental College and Hospitals, Saveetha Institute of Medical and Technical Sciences, Saveetha University, Chennai, IND
| | - Pratibha Ramani
- Oral Pathology and Microbiology, Saveetha Dental College and Hospitals, Saveetha Institute of Medical and Technical Sciences, Saveetha University, Chennai, IND
| | - Murugesan Krishnan
- Oral and Maxillofacial Surgery, Saveetha Dental College and Hospitals, Saveetha Institute of Medical and Technical Sciences, Saveetha University, Chennai, IND
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Surendar J, Hackenberg RK, Schmitt-Sánchez F, Ossendorff R, Welle K, Stoffel-Wagner B, Sage PT, Burger C, Wirtz DC, Strauss AC, Schildberg FA. Osteomyelitis is associated with increased anti-inflammatory response and immune exhaustion. Front Immunol 2024; 15:1396592. [PMID: 38736874 PMCID: PMC11082283 DOI: 10.3389/fimmu.2024.1396592] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2024] [Accepted: 04/12/2024] [Indexed: 05/14/2024] Open
Abstract
Introduction Osteomyelitis (OMS) is a bone infection causing bone pain and severe complications. A balanced immune response is critical to eradicate infection without harming the host, yet pathogens manipulate immunity to establish a chronic infection. Understanding OMS-driven inflammation is essential for disease management, but comprehensive data on immune profiles and immune cell activation during OMS are lacking. Methods Using high-dimensional flow cytometry, we investigated the detailed innate and adaptive systemic immune cell populations in OMS and age- and sex-matched controls. Results Our study revealed that OMS is associated with increased levels of immune regulatory cells, namely T regulatory cells, B regulatory cells, and T follicular regulatory cells. In addition, the expression of immune activation markers HLA-DR and CD86 was decreased in OMS, while the expression of immune exhaustion markers TIM-3, PD-1, PD-L1, and VISTA was increased. Members of the T follicular helper (Tfh) cell family as well as classical and typical memory B cells were significantly increased in OMS individuals. We also found a strong correlation between memory B cells and Tfh cells. Discussion We conclude that OMS skews the host immune system towards the immunomodulatory arm and that the Tfh memory B cell axis is evident in OMS. Therefore, immune-directed therapies may be a promising alternative for eradication and recurrence of infection in OMS, particularly in individuals and areas where antibiotic resistance is a major concern.
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Affiliation(s)
- Jayagopi Surendar
- Department of Orthopedics and Trauma Surgery, University Hospital Bonn, Bonn, Germany
| | - Roslind K. Hackenberg
- Department of Orthopedics and Trauma Surgery, University Hospital Bonn, Bonn, Germany
- Department of Hand, Plastic and Reconstructive Surgery, Burn Center, BG Trauma Center Ludwigshafen, University of Heidelberg, Ludwigshafen, Germany
| | - Fabio Schmitt-Sánchez
- Department of Orthopedics and Trauma Surgery, University Hospital Bonn, Bonn, Germany
| | - Robert Ossendorff
- Department of Orthopedics and Trauma Surgery, University Hospital Bonn, Bonn, Germany
| | - Kristian Welle
- Department of Orthopedics and Trauma Surgery, University Hospital Bonn, Bonn, Germany
| | - Birgit Stoffel-Wagner
- Institute of Clinical Chemistry and Clinical Pharmacology, University Hospital Bonn, Bonn, Germany
| | - Peter T. Sage
- Transplantation Research Center, Renal Division, Brigham and Women’s Hospital, Harvard Medical School, Boston, MA, United States
| | - Christof Burger
- Department of Orthopedics and Trauma Surgery, University Hospital Bonn, Bonn, Germany
| | - Dieter C. Wirtz
- Department of Orthopedics and Trauma Surgery, University Hospital Bonn, Bonn, Germany
| | - Andreas C. Strauss
- Department of Orthopedics and Trauma Surgery, University Hospital Bonn, Bonn, Germany
| | - Frank A. Schildberg
- Department of Orthopedics and Trauma Surgery, University Hospital Bonn, Bonn, Germany
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Chang J, Kerr D, Zheng M, Seyler T. Chondrocyte Invasion May Be a Mechanism for Persistent Staphylococcus Aureus Infection In Vitro. Clin Orthop Relat Res 2024:00003086-990000000-01578. [PMID: 38662927 DOI: 10.1097/corr.0000000000003074] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/14/2023] [Accepted: 03/11/2024] [Indexed: 06/23/2024]
Abstract
BACKGROUND Recurrent bone and joint infection with Staphylococcus aureus is common. S. aureus can invade and persist in osteoblasts and fibroblasts, but little is known about this mechanism in chondrocytes. If S. aureus were able to invade and persist within chondrocytes, this could be a difficult compartment to treat. QUESTION/PURPOSE Can S. aureus infiltrate and persist intracellularly within chondrocytes in vitro? METHODS Cell lines were cultured in vitro and infected with S. aureus. Human chondrocytes (C20A4) were compared with positive controls of human osteoblasts (MG63) and mouse fibroblasts (NIH3T3), which have previously demonstrated S. aureus invasion and persistence (human fibroblasts were not available to us). Six replicates per cell type were followed for 6 days after infection. Cells were treated daily with antibiotic media for extracellular killing. To determine whether S. aureus can infiltrate chondrocytes, fluorescence microscopy was performed to qualitatively assess the presence of intracellular bacteria, and intracellular colony-forming units (CFU) were enumerated 2 hours after infection. To determine whether S. aureus can persist within chondrocytes, intracellular CFUs were enumerated from infected host cells each day postinfection. RESULTS S. aureus invaded human chondrocytes (C20A4) at a level (2.8 x 105 ± 5.5 x 104 CFUs/mL) greater than positive controls of human osteoblasts (MG63) (9.5 x 102 ± 2.5 x 102 CFUs/mL; p = 0.01) and mouse fibroblasts (NIH3T3) (9.1 x 104 ± 2.5 x 104 CFUs/mL; p = 0.02). S. aureus also persisted within human chondrocytes (C20A4) for 6 days at a level (1.4 x 103 ± 5.3 x 102 CFUs/mL) greater than that of human osteoblasts (MG63) (4.3 x 102 ± 3.5 x 101 CFUs/mL; p = 0.02) and mouse fibroblasts (NIH3T3) (0 CFUs/mL; p < 0.01). S. aureus was undetectable within mouse fibroblasts (NIH3T3) after 4 days. There were 0 CFUs yielded from cell media, confirming extracellular antibiotic treatment was effective. CONCLUSION S. aureus readily invaded human chondrocytes (C20A4) in vitro and persisted viably for 6 days after infection, evading extracellular antibiotics. Chondrocytes demonstrated a greater level of intracellular invasion and persistence by S. aureus than positive control human osteoblast (MG63) and mouse fibroblast (NIH3T3) cell lines. CLINICAL RELEVANCE Chondrocyte invasion and persistence may contribute to recurrent bone and joint infections. Additional research should assess longer periods of persistence and whether this mechanism is present in vivo.
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Affiliation(s)
- Jerry Chang
- Department of Orthopaedic Surgery, Duke University, Durham, NC, USA
| | - David Kerr
- Department of Orthopaedic Surgery, Duke University, Durham, NC, USA
| | - Megan Zheng
- Department of Orthopaedic Surgery, Duke University, Durham, NC, USA
| | - Thorsten Seyler
- Department of Orthopaedic Surgery, Duke University, Durham, NC, USA
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Liu CG, Li DY, Gao X, Ma T, Zhang K, Liu DY. Examining the causal relationship between circulating immune cells and the susceptibility to osteomyelitis: A Mendelian randomization study. Int Immunopharmacol 2024; 131:111815. [PMID: 38492335 DOI: 10.1016/j.intimp.2024.111815] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2024] [Revised: 03/04/2024] [Accepted: 03/05/2024] [Indexed: 03/18/2024]
Abstract
BACKGROUND Osteomyelitis is considered as a deleterious inflammatory condition affecting the bone, primarily attributed to pathogenic infection. However, the underlying factors predisposing individuals to osteomyelitis remain incompletely elucidated. The immune system plays a multifaceted role in the progression of this condition, yet previous observational studies and randomized controlled trials investigating the association between circulating immune cell counts and osteomyelitis have been constrained. In order to address this knowledge gap, we conducted a Mendelian randomization (MR) analysis to evaluate the impact of diverse immune cell counts on the risk of developing osteomyelitis. METHODS In our study, we utilized single nucleotide polymorphisms (SNPs) that have been strongly linked to circulating immune cells or specific lymphocyte subtypes, as identified in large-scale genome-wide association studies (GWAS). These SNPs served as instrumental variables (IVs) for our MR analysis. We employed a more relaxed clumping threshold to conduct MR analysis on several related lymphocyte subtypes. To estimate causal effects, we utilized the Wald ratio, as well as the random-effects inverse variance weighted (IVW) and weighted median (WM) methods. To enhance the credibility of our results, we performed F-statistic calculations and a series of sensitivity analyses. RESULTS Our findings revealed a significant correlation between the absolute count of circulating lymphocytes and the risk of osteomyelitis [odds ratio(OR) 1.20;95 % confidence interval (CI), 1.08-1.32;P = 0.0005]. Furthermore, we identified a causal relationship between the absolute count of CD8+ T cells and susceptibility to osteomyelitis (OR 1.16; 95 % CI, 1.04-1.30; P = 0.0098). Importantly, these findings remained robust across a wide range of sensitivity analyses. CONCLUSION Through our MR analysis, we have provided evidence supporting a causal relationship between genetic predisposition to higher circulating immune cell counts and an increased risk of osteomyelitis. Specifically, our findings highlight the association between elevated CD8+ T cell counts and a heightened susceptibility to osteomyelitis. These results offer valuable insights for the future exploration of immunotherapy approaches in the management of osteomyelitis.
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Affiliation(s)
- Chun-Gui Liu
- Severe & Poly-trauma Division, Orthopedic Trauma Department, Hong-Hui Hospital, Xi'an Jiaotong University, Xi'an, China
| | - Dong-Yang Li
- Severe & Poly-trauma Division, Orthopedic Trauma Department, Hong-Hui Hospital, Xi'an Jiaotong University, Xi'an, China
| | - Xi Gao
- Severe & Poly-trauma Division, Orthopedic Trauma Department, Hong-Hui Hospital, Xi'an Jiaotong University, Xi'an, China
| | - Teng Ma
- Severe & Poly-trauma Division, Orthopedic Trauma Department, Hong-Hui Hospital, Xi'an Jiaotong University, Xi'an, China
| | - Kun Zhang
- Severe & Poly-trauma Division, Orthopedic Trauma Department, Hong-Hui Hospital, Xi'an Jiaotong University, Xi'an, China
| | - De-Yin Liu
- Severe & Poly-trauma Division, Orthopedic Trauma Department, Hong-Hui Hospital, Xi'an Jiaotong University, Xi'an, China.
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Zeng W, Wu Y, Liang X, Cun D, Ma L, Zhang J, Huang F, Jiang Z. Causal associations between human gut microbiota and osteomyelitis: a Mendelian randomization study. Front Cell Infect Microbiol 2024; 14:1338989. [PMID: 38655282 PMCID: PMC11035795 DOI: 10.3389/fcimb.2024.1338989] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2023] [Accepted: 03/26/2024] [Indexed: 04/26/2024] Open
Abstract
Background Recent studies have emphasized the role of gut microbiota in the onset and progression of osteomyelitis. However, the exact types of gut microbiota and their mechanisms of action remain unclear. Additionally, there is a lack of theoretical support for treatments that improve osteomyelitis by altering the gut microbiota. Methods In our study, we utilized the largest genome-wide association study (GWAS) meta-analysis to date from the MiBioGen consortium, involving 13,400 participants. The GWAS data for osteomyelitis were sourced from the UK Biobank, which included 4,836 osteomyelitis cases and 486,484 controls. We employed a two-sample Mendelian randomization framework for a detailed investigation into the causal relationship between gut microbiota and osteomyelitis. Our methods included inverse variance weighting, MR-Egger, weighted median, and weighted mode approaches. Additionally, we applied Cochran's Q statistic to assess the heterogeneity of the instrumental variable. Results At the class level, Bacilli and Bacteroidia were positively correlated with the risk of osteomyelitis. At the order level, only Bacteroidales showed a positive association with osteomyelitis. At the genus level, an increased abundance of Butyricimonas, Coprococcus3, and Tyzzerella3 was positively associated with the risk of osteomyelitis, whereas Lachnospira was negatively associated. Sensitivity analyses showed no evidence of heterogeneity or pleiotropy. Conclusion This study reveals that classes Bacilli and Bacteroidia, order Bacteroidales, and genera Butyricimonas, Coprococcus3, and Tyzzerella3 are implicated in increasing the risk of osteomyelitis, while the genus Lachnospira is associated with a reduced risk. Future investigations are warranted to elucidate the precise mechanisms through which these specific bacterial groups influence the pathophysiology of osteomyelitis.
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Affiliation(s)
- Wenxing Zeng
- First Clinical Medical College of Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Yuheng Wu
- First Clinical Medical College of Guangzhou University of Chinese Medicine, Guangzhou, China
- Seventh Clinical Medical College of Guangzhou University of Chinese Medicine, Shenzhen, China
| | - Xiaoye Liang
- First Clinical Medical College of Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Dejun Cun
- First Clinical Medical College of Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Luyao Ma
- First Clinical Medical College of Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Jingtao Zhang
- First Clinical Medical College of Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Feng Huang
- First Clinical Medical College of Guangzhou University of Chinese Medicine, Guangzhou, China
- Department of Traumatology and Orthopedics, The First Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Ziwei Jiang
- First Clinical Medical College of Guangzhou University of Chinese Medicine, Guangzhou, China
- Department of Traumatology and Orthopedics, The First Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, China
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Long K, Gong A, Yu D, Dong S, Ying Z, Zhang L. Exploring the immunological landscape of osteomyelitis through mendelian randomization analysis. Front Genet 2024; 15:1362432. [PMID: 38650858 PMCID: PMC11033344 DOI: 10.3389/fgene.2024.1362432] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2023] [Accepted: 03/20/2024] [Indexed: 04/25/2024] Open
Abstract
Background Osteomyelitis is a severe bone marrow infection, whose pathogenesis is not yet fully understood. This study aims to explore the causal relationship between immune cell characteristics and osteomyelitis, hoping to provide new insights for the prevention and treatment of osteomyelitis. Methods Based on two independent samples, this study employed a two-sample Mendelian randomization (MR) analysis to assess the causal relationship between 731 immune cell characteristics (divided into seven groups) and osteomyelitis. Genetic variants were used as proxies for risk factors to ensure that the selected instrumental variables meet the three key assumptions of MR analysis. Genome-Wide Association Studies (GWAS) data for immune characteristics were obtained from the public GWAS catalog, while data for osteomyelitis was sourced from the FinnGen. Results At a significance level of 0.05, 21 immune phenotypes were identified as having a causal relationship with osteomyelitis development. In the B cell group, phenotypes such as Memory B cell % B cell (percentage of memory B cells within the total B cell population, % finger cell ratio), CD20- %B cell (percentage of B cells that do not express the CD20 marker on their surface), and Memory B cell % lymphocyte showed a positive causal relationship with osteomyelitis, while Naive-mature B cell %B cell and IgD-CD38-absolute cell counts (AC) phenotypes showed a negative causal relationship. In addition, specific immune phenotypes in the conventional dendritic cells (cDCs) group, Myeloid cell group, TBNK (T cells, B cells, natural killer cells) cell group, T cell maturation stage, and Treg cell group also showed significant associations with osteomyelitis. Through reverse MR analysis, it was found that osteomyelitis had no significant causal impact on these immune phenotypes, suggesting that the occurrence of osteomyelitis may not affect these immune cell phenotypes. Conclusion To our knowledge, this is the first study to shed light on the causal relationship between specific immune cell characteristics and the development of osteomyelitis, thereby providing a new perspective to understand the immune mechanism of osteomyelitis. These findings are significant for formulating targeted prevention and treatment strategies, and hold promise to improve the treatment outcomes for patients with osteomyelitis.
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Affiliation(s)
- Kehan Long
- School of Clinical Medicine, Shandong Second Medical University, Weifang, Shandong, China
| | - Ao Gong
- Second Clinical Medical College of Shandong University of Traditional Chinese Medicine, Jinan, Shandong, China
| | - Dou Yu
- School of Clinical Medicine, Shandong First Medical University, Jinan, Shandong, China
| | - Sumiao Dong
- School of Clinical Medicine, Shandong First Medical University, Jinan, Shandong, China
| | - Zhendong Ying
- Second Clinical Medical College of Shandong University of Traditional Chinese Medicine, Jinan, Shandong, China
| | - Lei Zhang
- The First Affiliated Hospital of Shandong First Medical University, Jinan, Shandong, China
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20
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Shihabul Hassan M, Stevenson J, Gandikota G, Veeratterapillay A, Bhamidipaty K, Botchu R. Current updates in MSK infection imaging: A narrative review. J Clin Orthop Trauma 2024; 51:102396. [PMID: 38585385 PMCID: PMC10998214 DOI: 10.1016/j.jcot.2024.102396] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/23/2024] [Revised: 02/28/2024] [Accepted: 03/18/2024] [Indexed: 04/09/2024] Open
Abstract
This article presents a comprehensive overview of the diagnostic utility of existing imaging techniques including radiography, computed tomography, ultrasonography, magnetic resonance imaging (MRI), and radionuclide imaging in the context of the most common orthopaedic or musculoskeletal infections. It also includes illustrative images showcasing significant findings in various musculoskeletal infections including osteomyelitis, cellulitis, septic arthritis, necrotising infections and peri-prosthetic joint infections and their associated complications.
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Affiliation(s)
- M. Shihabul Hassan
- College of Medical and Dental Sciences, University of Birmingham, Birmingham, UK
| | - J. Stevenson
- Department of Orthopedics, Royal Orthopedic Hospital, Birmingham, UK
| | - G. Gandikota
- Department of Radiology, University of North Carolina, USA
| | | | | | - R. Botchu
- Department of Musculoskeletal Radiology, Royal Orthopedic Hospital, Birmingham, UK
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21
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Debs P, Boutin RD, Smith SE, Babic M, Blankenbaker D, Chandra V, Murphey M, Thottacherry E, Kreulen C, Fayad LM. Chronic Nonspinal Osteomyelitis in Adults: Consensus Recommendations on Percutaneous Bone Biopsies from the Society of Academic Bone Radiologists. Radiology 2024; 311:e231348. [PMID: 38625010 PMCID: PMC11070610 DOI: 10.1148/radiol.231348] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/17/2024]
Abstract
The diagnosis and management of chronic nonspinal osteomyelitis can be challenging, and guidelines regarding the appropriateness of performing percutaneous image-guided biopsies to acquire bone samples for microbiological analysis remain limited. An expert panel convened by the Society of Academic Bone Radiologists developed and endorsed consensus statements on the various indications for percutaneous image-guided biopsies to standardize care and eliminate inconsistencies across institutions. The issued statements pertain to several commonly encountered clinical presentations of chronic osteomyelitis and were supported by a literature review. For most patients, MRI can help guide management and effectively rule out osteomyelitis when performed soon after presentation. Additionally, in the appropriate clinical setting, open wounds such as sinus tracts and ulcers, as well as joint fluid aspirates, can be used for microbiological culture to determine the causative microorganism. If MRI findings are positive, surgery is not needed, and alternative sites for microbiological culture are not available, then percutaneous image-guided biopsies can be performed. The expert panel recommends that antibiotics be avoided or discontinued for an optimal period of 2 weeks prior to a biopsy whenever possible. Patients with extensive necrotic decubitus ulcers or other surgical emergencies should not undergo percutaneous image-guided biopsies but rather should be admitted for surgical debridement and intraoperative cultures. Multidisciplinary discussion and approach are crucial to ensure optimal diagnosis and care of patients diagnosed with chronic osteomyelitis.
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Affiliation(s)
- Patrick Debs
- From The Russell H. Morgan Department of Radiology and Radiological Science (P.D., L.M.F.), and Departments of Orthopaedic Surgery (L.M.F.) and Oncology (L.M.F.), The Johns Hopkins University Medical Institutions, 600 N Wolfe St, JHOC 3014, Baltimore, MD 21287; Department of Radiology (R.D.B.) and Division of Vascular Surgery, Department of Surgery (V.C.), Stanford University School of Medicine, Palo Alto, Calif; Division of Musculoskeletal Imaging and Intervention, Department of Radiology, Brigham and Women's Hospital, Harvard Medical School, Boston, Mass (S.E.S.); Infectious Disease Department, Cleveland Clinic, Cleveland, Ohio (M.B.); Department of Radiology, University of Wisconsin School of Medicine and Public Health, Madison, Wis (D.B.); Musculoskeletal Imaging and Neuroradiology, ACR Institute for Radiologic Pathology, Silver Spring, Md (M.M.); Division of Infectious Diseases and Geographic Medicine, Stanford University, Stanford, Calif (E.T.); and Department of Orthopaedic Surgery, University of California-Davis, Sacramento, Calif (C.K.)
| | - Robert D Boutin
- From The Russell H. Morgan Department of Radiology and Radiological Science (P.D., L.M.F.), and Departments of Orthopaedic Surgery (L.M.F.) and Oncology (L.M.F.), The Johns Hopkins University Medical Institutions, 600 N Wolfe St, JHOC 3014, Baltimore, MD 21287; Department of Radiology (R.D.B.) and Division of Vascular Surgery, Department of Surgery (V.C.), Stanford University School of Medicine, Palo Alto, Calif; Division of Musculoskeletal Imaging and Intervention, Department of Radiology, Brigham and Women's Hospital, Harvard Medical School, Boston, Mass (S.E.S.); Infectious Disease Department, Cleveland Clinic, Cleveland, Ohio (M.B.); Department of Radiology, University of Wisconsin School of Medicine and Public Health, Madison, Wis (D.B.); Musculoskeletal Imaging and Neuroradiology, ACR Institute for Radiologic Pathology, Silver Spring, Md (M.M.); Division of Infectious Diseases and Geographic Medicine, Stanford University, Stanford, Calif (E.T.); and Department of Orthopaedic Surgery, University of California-Davis, Sacramento, Calif (C.K.)
| | - Stacy E Smith
- From The Russell H. Morgan Department of Radiology and Radiological Science (P.D., L.M.F.), and Departments of Orthopaedic Surgery (L.M.F.) and Oncology (L.M.F.), The Johns Hopkins University Medical Institutions, 600 N Wolfe St, JHOC 3014, Baltimore, MD 21287; Department of Radiology (R.D.B.) and Division of Vascular Surgery, Department of Surgery (V.C.), Stanford University School of Medicine, Palo Alto, Calif; Division of Musculoskeletal Imaging and Intervention, Department of Radiology, Brigham and Women's Hospital, Harvard Medical School, Boston, Mass (S.E.S.); Infectious Disease Department, Cleveland Clinic, Cleveland, Ohio (M.B.); Department of Radiology, University of Wisconsin School of Medicine and Public Health, Madison, Wis (D.B.); Musculoskeletal Imaging and Neuroradiology, ACR Institute for Radiologic Pathology, Silver Spring, Md (M.M.); Division of Infectious Diseases and Geographic Medicine, Stanford University, Stanford, Calif (E.T.); and Department of Orthopaedic Surgery, University of California-Davis, Sacramento, Calif (C.K.)
| | - Maja Babic
- From The Russell H. Morgan Department of Radiology and Radiological Science (P.D., L.M.F.), and Departments of Orthopaedic Surgery (L.M.F.) and Oncology (L.M.F.), The Johns Hopkins University Medical Institutions, 600 N Wolfe St, JHOC 3014, Baltimore, MD 21287; Department of Radiology (R.D.B.) and Division of Vascular Surgery, Department of Surgery (V.C.), Stanford University School of Medicine, Palo Alto, Calif; Division of Musculoskeletal Imaging and Intervention, Department of Radiology, Brigham and Women's Hospital, Harvard Medical School, Boston, Mass (S.E.S.); Infectious Disease Department, Cleveland Clinic, Cleveland, Ohio (M.B.); Department of Radiology, University of Wisconsin School of Medicine and Public Health, Madison, Wis (D.B.); Musculoskeletal Imaging and Neuroradiology, ACR Institute for Radiologic Pathology, Silver Spring, Md (M.M.); Division of Infectious Diseases and Geographic Medicine, Stanford University, Stanford, Calif (E.T.); and Department of Orthopaedic Surgery, University of California-Davis, Sacramento, Calif (C.K.)
| | - Donna Blankenbaker
- From The Russell H. Morgan Department of Radiology and Radiological Science (P.D., L.M.F.), and Departments of Orthopaedic Surgery (L.M.F.) and Oncology (L.M.F.), The Johns Hopkins University Medical Institutions, 600 N Wolfe St, JHOC 3014, Baltimore, MD 21287; Department of Radiology (R.D.B.) and Division of Vascular Surgery, Department of Surgery (V.C.), Stanford University School of Medicine, Palo Alto, Calif; Division of Musculoskeletal Imaging and Intervention, Department of Radiology, Brigham and Women's Hospital, Harvard Medical School, Boston, Mass (S.E.S.); Infectious Disease Department, Cleveland Clinic, Cleveland, Ohio (M.B.); Department of Radiology, University of Wisconsin School of Medicine and Public Health, Madison, Wis (D.B.); Musculoskeletal Imaging and Neuroradiology, ACR Institute for Radiologic Pathology, Silver Spring, Md (M.M.); Division of Infectious Diseases and Geographic Medicine, Stanford University, Stanford, Calif (E.T.); and Department of Orthopaedic Surgery, University of California-Davis, Sacramento, Calif (C.K.)
| | - Venita Chandra
- From The Russell H. Morgan Department of Radiology and Radiological Science (P.D., L.M.F.), and Departments of Orthopaedic Surgery (L.M.F.) and Oncology (L.M.F.), The Johns Hopkins University Medical Institutions, 600 N Wolfe St, JHOC 3014, Baltimore, MD 21287; Department of Radiology (R.D.B.) and Division of Vascular Surgery, Department of Surgery (V.C.), Stanford University School of Medicine, Palo Alto, Calif; Division of Musculoskeletal Imaging and Intervention, Department of Radiology, Brigham and Women's Hospital, Harvard Medical School, Boston, Mass (S.E.S.); Infectious Disease Department, Cleveland Clinic, Cleveland, Ohio (M.B.); Department of Radiology, University of Wisconsin School of Medicine and Public Health, Madison, Wis (D.B.); Musculoskeletal Imaging and Neuroradiology, ACR Institute for Radiologic Pathology, Silver Spring, Md (M.M.); Division of Infectious Diseases and Geographic Medicine, Stanford University, Stanford, Calif (E.T.); and Department of Orthopaedic Surgery, University of California-Davis, Sacramento, Calif (C.K.)
| | - Mark Murphey
- From The Russell H. Morgan Department of Radiology and Radiological Science (P.D., L.M.F.), and Departments of Orthopaedic Surgery (L.M.F.) and Oncology (L.M.F.), The Johns Hopkins University Medical Institutions, 600 N Wolfe St, JHOC 3014, Baltimore, MD 21287; Department of Radiology (R.D.B.) and Division of Vascular Surgery, Department of Surgery (V.C.), Stanford University School of Medicine, Palo Alto, Calif; Division of Musculoskeletal Imaging and Intervention, Department of Radiology, Brigham and Women's Hospital, Harvard Medical School, Boston, Mass (S.E.S.); Infectious Disease Department, Cleveland Clinic, Cleveland, Ohio (M.B.); Department of Radiology, University of Wisconsin School of Medicine and Public Health, Madison, Wis (D.B.); Musculoskeletal Imaging and Neuroradiology, ACR Institute for Radiologic Pathology, Silver Spring, Md (M.M.); Division of Infectious Diseases and Geographic Medicine, Stanford University, Stanford, Calif (E.T.); and Department of Orthopaedic Surgery, University of California-Davis, Sacramento, Calif (C.K.)
| | - Elizabeth Thottacherry
- From The Russell H. Morgan Department of Radiology and Radiological Science (P.D., L.M.F.), and Departments of Orthopaedic Surgery (L.M.F.) and Oncology (L.M.F.), The Johns Hopkins University Medical Institutions, 600 N Wolfe St, JHOC 3014, Baltimore, MD 21287; Department of Radiology (R.D.B.) and Division of Vascular Surgery, Department of Surgery (V.C.), Stanford University School of Medicine, Palo Alto, Calif; Division of Musculoskeletal Imaging and Intervention, Department of Radiology, Brigham and Women's Hospital, Harvard Medical School, Boston, Mass (S.E.S.); Infectious Disease Department, Cleveland Clinic, Cleveland, Ohio (M.B.); Department of Radiology, University of Wisconsin School of Medicine and Public Health, Madison, Wis (D.B.); Musculoskeletal Imaging and Neuroradiology, ACR Institute for Radiologic Pathology, Silver Spring, Md (M.M.); Division of Infectious Diseases and Geographic Medicine, Stanford University, Stanford, Calif (E.T.); and Department of Orthopaedic Surgery, University of California-Davis, Sacramento, Calif (C.K.)
| | - Christopher Kreulen
- From The Russell H. Morgan Department of Radiology and Radiological Science (P.D., L.M.F.), and Departments of Orthopaedic Surgery (L.M.F.) and Oncology (L.M.F.), The Johns Hopkins University Medical Institutions, 600 N Wolfe St, JHOC 3014, Baltimore, MD 21287; Department of Radiology (R.D.B.) and Division of Vascular Surgery, Department of Surgery (V.C.), Stanford University School of Medicine, Palo Alto, Calif; Division of Musculoskeletal Imaging and Intervention, Department of Radiology, Brigham and Women's Hospital, Harvard Medical School, Boston, Mass (S.E.S.); Infectious Disease Department, Cleveland Clinic, Cleveland, Ohio (M.B.); Department of Radiology, University of Wisconsin School of Medicine and Public Health, Madison, Wis (D.B.); Musculoskeletal Imaging and Neuroradiology, ACR Institute for Radiologic Pathology, Silver Spring, Md (M.M.); Division of Infectious Diseases and Geographic Medicine, Stanford University, Stanford, Calif (E.T.); and Department of Orthopaedic Surgery, University of California-Davis, Sacramento, Calif (C.K.)
| | - Laura M Fayad
- From The Russell H. Morgan Department of Radiology and Radiological Science (P.D., L.M.F.), and Departments of Orthopaedic Surgery (L.M.F.) and Oncology (L.M.F.), The Johns Hopkins University Medical Institutions, 600 N Wolfe St, JHOC 3014, Baltimore, MD 21287; Department of Radiology (R.D.B.) and Division of Vascular Surgery, Department of Surgery (V.C.), Stanford University School of Medicine, Palo Alto, Calif; Division of Musculoskeletal Imaging and Intervention, Department of Radiology, Brigham and Women's Hospital, Harvard Medical School, Boston, Mass (S.E.S.); Infectious Disease Department, Cleveland Clinic, Cleveland, Ohio (M.B.); Department of Radiology, University of Wisconsin School of Medicine and Public Health, Madison, Wis (D.B.); Musculoskeletal Imaging and Neuroradiology, ACR Institute for Radiologic Pathology, Silver Spring, Md (M.M.); Division of Infectious Diseases and Geographic Medicine, Stanford University, Stanford, Calif (E.T.); and Department of Orthopaedic Surgery, University of California-Davis, Sacramento, Calif (C.K.)
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22
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McNally JN, Bruckner A. An Unusual Case of Proteus mirabilis-Induced Severe Contiguous Bacterial Osteomyelitis in an Elderly Nursing Home Resident: A Case Report. Cureus 2024; 16:e57710. [PMID: 38711719 PMCID: PMC11071693 DOI: 10.7759/cureus.57710] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/06/2024] [Indexed: 05/08/2024] Open
Abstract
Contiguous bacterial osteomyelitis results from the spread of a variety of pyogenic bacteria from nearby skin, soft tissue, or joint infections into the underlying bone. This report describes a case of severe contiguous bacterial osteomyelitis in an 82-year-old female nursing home resident with newly diagnosed and comorbid peripheral arterial disease, along with a history of decubitus ulcers as a result of presumed neglect at her residence. The patient initially presented with multiple ulcerative lesions overlying the left foot and ankle with associated severe pain and chronic vascular insufficiency. The patient was empirically started on broad-spectrum antibiotics, with a subsequent wound culture demonstrating heavy growth of Proteus mirabilis. Multiple imaging modalities irrefutably demonstrated destructive bony changes characteristic of osteomyelitis. Left below-the-knee amputation was thereafter agreed upon as the most beneficial treatment method, with concomitant prolonged antibiotic therapy. This case emphasizes the importance of providing adequate medical and preventative care for elderly nursing home residents in an effort to reduce the incidence of contiguous bacterial osteomyelitis, a topic rarely discussed in current literature.
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Affiliation(s)
- John N McNally
- Medicine, Edward Via College of Osteopathic Medicine, Spartanburg, USA
| | - Adam Bruckner
- Family Medicine, Aiken Regional Medical Center, Aiken, USA
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23
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Jiang C, Zhu G, Liu Q. Current application and future perspectives of antimicrobial degradable bone substitutes for chronic osteomyelitis. Front Bioeng Biotechnol 2024; 12:1375266. [PMID: 38600942 PMCID: PMC11004352 DOI: 10.3389/fbioe.2024.1375266] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2024] [Accepted: 03/19/2024] [Indexed: 04/12/2024] Open
Abstract
Chronic osteomyelitis remains a persistent challenge for the surgeons due to its refractory nature. Generally, treatment involves extensive debridement of necrotic bone, filling of dead space, adequate antimicrobial therapy, bone reconstruction, and rehabilitation. However, the optimal choice of bone substitute to manage the bone defect remains debatable. This paper reviewed the clinical evidence for antimicrobial biodegradable bone substitutes in the treatment of osteomyelitis in recent years. Indeed, this combination was proved to eradicate infection and facilitate bone reconstruction, which might reduce the cost and hospital stay. Handling was associated with increased risk of unwanted side effect to affect bone healing. The study provides some valuable insights into the clinical evaluation of treatment outcomes in the aspects of infection eradication, bone reconstruction, and complications caused by materials. However, achieving complete infection eradication and subsequently perfect bone reconstruction remains challenging in compromised conditions, hence advanced innovative bone substitutes are imperative. In this review, we mainly focus on the desired functional effects of advanced bone substitutes on infection eradication and bone reconstruction from the future perspective. Handling property was optimized to simplify surgery process. It is expected that this review will provide an important opportunity to enhance the understanding of the design and application of innovative biomaterials to synergistically eradicate infection and restore integrity and function of bone.
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Affiliation(s)
- Chenxi Jiang
- Department of Stomatology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
- School of Stomatology, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
- Hubei Province Key Laboratory of Oral and Maxillofacial Development and Regeneration, Wuhan, China
| | - Guangxun Zhu
- School of Stomatology, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
- Hubei Province Key Laboratory of Oral and Maxillofacial Development and Regeneration, Wuhan, China
- Department of Stomatology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Qian Liu
- Department of Stomatology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
- School of Stomatology, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
- Hubei Province Key Laboratory of Oral and Maxillofacial Development and Regeneration, Wuhan, China
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24
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Wu J, Wei H, Wei Y, Deng T, Wang Y, Qiu Y, Zhang Y. Spatiotemporal Synergism in Osteomyelitis Treatment with Photoactivated Core-Shell Zinc Oxide/Silver Sulfide Heterogeneous Nanoparticles. ACS APPLIED MATERIALS & INTERFACES 2024; 16:11194-11205. [PMID: 38391151 DOI: 10.1021/acsami.3c16546] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/24/2024]
Abstract
Osteomyelitis is primarily caused by bacterial infections, and treatment requires precise sequential therapy, including antibacterial therapy in the early stages and bone defect reconstruction in later stages. We aimed to synthesize core-shell-structured zinc oxide/silver sulfide heterogeneous nanoparticles (ZnO/Ag2S NPs) using wet chemical methods. Using density functional theory and ultraviolet photoelectron spectroscopy, we showed that the optimized band structure endowed ZnO/Ag2S NPs with photodynamic properties under near-infrared (NIR) irradiation. Moreover, ZnO/Ag2S NPs exhibited a distinguished and stable photothermal performance within the same wavelength range. With single-wavelength irradiation, ZnO/Ag2S NPs achieved a bifunctional antibacterial effect during the acute stage of osteomyelitis. Antibacterial action was confirmed through colony-forming unit (CFU) counting assays, scanning electronic microscopy (SEM) observations, live-dead staining, growth curves, and quantitative real-time polymerase chain reaction (qPCR) assays. The Ag2S coating on the NPs realized the sustained release of zinc ions, thereby controlling the zinc ion concentration. Alkaline phosphatase (ALP) staining, alizarin red S (ARS) staining, and qPCR assays confirmed that the ZnO/Ag2S NPs exhibited good osteogenic effects in vitro. These effects were verified in an in vivo mouse femur model during chronic stages using micro-computed tomography (micro-CT) and histological analysis. This study provides a novel biocompatible core-shell nanomaterial for the two-phase treatment of osteomyelitis, contributing to versatile nanotherapies for infections and inflammation.
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Affiliation(s)
- Jingwen Wu
- State Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration, Key Laboratory of Oral Biomedicine, Ministry of Education, Hubei Key Laboratory of Stomatology, School & Hospital of Stomatology, Wuhan University, Wuhan, Hubei 430071, People's Republic of China
| | - Hongjiang Wei
- State Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration, Key Laboratory of Oral Biomedicine, Ministry of Education, Hubei Key Laboratory of Stomatology, School & Hospital of Stomatology, Wuhan University, Wuhan, Hubei 430071, People's Republic of China
| | - Yan Wei
- State Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration, Key Laboratory of Oral Biomedicine, Ministry of Education, Hubei Key Laboratory of Stomatology, School & Hospital of Stomatology, Wuhan University, Wuhan, Hubei 430071, People's Republic of China
| | - Tian Deng
- State Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration, Key Laboratory of Oral Biomedicine, Ministry of Education, Hubei Key Laboratory of Stomatology, School & Hospital of Stomatology, Wuhan University, Wuhan, Hubei 430071, People's Republic of China
| | - Yulan Wang
- State Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration, Key Laboratory of Oral Biomedicine, Ministry of Education, Hubei Key Laboratory of Stomatology, School & Hospital of Stomatology, Wuhan University, Wuhan, Hubei 430071, People's Republic of China
| | - Yun Qiu
- State Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration, Key Laboratory of Oral Biomedicine, Ministry of Education, Hubei Key Laboratory of Stomatology, School & Hospital of Stomatology, Wuhan University, Wuhan, Hubei 430071, People's Republic of China
| | - Yufeng Zhang
- State Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration, Key Laboratory of Oral Biomedicine, Ministry of Education, Hubei Key Laboratory of Stomatology, School & Hospital of Stomatology, Wuhan University, Wuhan, Hubei 430071, People's Republic of China
- Medical Research Institute School of Medicine, Wuhan University, Wuhan, Hubei 430071, People's Republic of China
- Taikang Center for Life and Medical Sciences, Wuhan University, Wuhan, Hubei 430071, People's Republic of China
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Zhao Y, Kang H, Xia Y, Sun L, Li F, Dai H. 3D Printed Photothermal Scaffold Sandwiching Bacteria Inside and Outside Improves The Infected Microenvironment and Repairs Bone Defects. Adv Healthc Mater 2024; 13:e2302879. [PMID: 37927129 DOI: 10.1002/adhm.202302879] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2023] [Revised: 10/26/2023] [Indexed: 11/07/2023]
Abstract
Bone infection is one of the most devastating orthopedic outcomes, and overuse of antibiotics may cause drug-resistance problems. Photothermal therapy(PTT) is a promising antibiotic-free strategy for treating infected bone defects. Considering the damage to normal tissues and cells caused by high-temperature conditions in PTT, this study combines the antibacterial property of Cu to construct a multi-functional Cu2 O@MXene/alpha-tricalcium phosphate (α-TCP) scaffold support with internal and external sandwiching through 3D printing technology. On the "outside", the excellent photothermal property of Ti3 C2 MXene is used to carry out the programmed temperature control by the active regulation of 808 nm near-infrared (NIR) light. On the "inside", endogenous Cu ions gradually release and the release accumulates within the safe dose range. Specifically, programmed temperature control includes brief PTT to rapidly kill early bacteria and periodic low photothermal stimulation to promote bone tissue growth, which reduces damage to healthy cells and tissues. Meanwhile, Cu ions are gradually released from the scaffold over a long period of time, strengthening the antibacterial effect of early PTT, and promoting angiogenesis to improve the repair effect. PTT combined with Cu can deliver a new idea forinfected bone defects through in vitro and vivo application.
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Affiliation(s)
- Youzi Zhao
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Biomedical Materials and Engineering Research Center of Hubei Province, Wuhan University of Technology, Wuhan, 430070, China
| | - Honglei Kang
- Department of Orthopedics, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1095 Jiefang Avenue, Wuhan, 430030, China
| | - Yuhao Xia
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Biomedical Materials and Engineering Research Center of Hubei Province, Wuhan University of Technology, Wuhan, 430070, China
| | - Lingshun Sun
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Biomedical Materials and Engineering Research Center of Hubei Province, Wuhan University of Technology, Wuhan, 430070, China
| | - Feng Li
- Department of Orthopedics, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1095 Jiefang Avenue, Wuhan, 430030, China
| | - Honglian Dai
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Biomedical Materials and Engineering Research Center of Hubei Province, Wuhan University of Technology, Wuhan, 430070, China
- National Energy Key Laboratory For New Hydrogen-ammonia Energy Technologies, Foshan Xianhu Laboratory, Xianhu Hydrogen Valley, Foshan, 528200, China
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26
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Li J, Li H, Bi S, Sun Y, Gu F, Yu T. Shock wave assisted intracellular delivery of antibiotics against bone infection with Staphylococcus aureus via P2X7 receptors. J Orthop Translat 2024; 45:10-23. [PMID: 38434180 PMCID: PMC10904912 DOI: 10.1016/j.jot.2023.10.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/04/2023] [Accepted: 10/20/2023] [Indexed: 03/05/2024] Open
Abstract
Background Treatment of chronic osteomyelitis (bone infection) remains a clinical challenge; in particular, it requires enhanced delivery of antibiotic drugs for the treatment of intracellular Staphylococcus aureus (S. aureus), which prevents infection recurrence and resistance. Previous studies have found that noninvasive shock waves used to treat musculoskeletal diseases can alter cell permeability, however, it is unclear whether shock waves alter cell membrane permeability in chronic osteomyelitis. Furthermore, it remains unknown whether such changes in permeability promote the entry of antibiotics into osteoblasts to exert antibacterial effects. Methods In our study, trypan blue staining was used to determine the shock wave parameters that had no obvious damage to the osteoblast model; the effect of shocks waves on the cell membrane permeability of osteoblast model was detected by BODIPY®FL vancomycin; high performance liquid chromatography-mass spectrometry (HLPC-MS) was used to detect the effect of shock wave on the entry of antibiotics into the osteoblast model; plate colony counting method was used to detect the clearance effect of shock wave assisted antibiotics on S. aureus in the osteoblast model. To explore the mechanism, the effect of different pulses of shock waves on S. aureus was examined by plate colony counting method, besides, P2X7 receptor in osteoblast was detected by immunofluorescence and the extracellular ATP levels was detected. Furthermore, the effect of P2X7 receptor antagonists KN-62 or A740003 on the intracellular antibacterial activity of shock-assisted antibiotics was observed. Then, we used S. aureus to establish a rat model of chronic tibial osteomyelitis and investigated the efficacy and safety of shock-wave assisted antibiotics in the treatment of chronic osteomyelitis in rats. Results The viability of the osteoblast models of intracellular S. aureus infection was not significantly affected by the application of up to 400 shock wave pulses at 0.21 mJ/mm2. Surprisingly, the delivery of BODIPY®FL vancomycin to osteoblast model cells was markedly enhanced by this shock wave treatment. Furthermore, the shock wave therapy increased the delivery of hydrophilic antibiotics (vancomycin and cefuroxime sodium), but not lipophilic antibiotics (rifampicin and levofloxacin), which improved the intracellular antibacterial effect. Afterwards, we discovered that shock wave treatment increased the extracellular concentration of ATP (the P2X7 receptor activator), while KN-62 or A740003, a P2X7 receptor inhibitor, decreased intracellular antibacterial activity. We then found that 0.1 mL of 1 × 1011 CFU/mL ATCC25923 S. aureus was suitable for modeling chronic osteomyelitis in rats. Besides, the shock wave-assisted vancomycin treatment with the strongest antibacterial and osteogenic effects among the tested treatments was confirmed in vivo by imaging examination, microbiological cultures, and histopathology, with favorable safety. Conclusions Our results suggest that shock waves can promote the entry of antibiotics into osteoblasts for antibacteria by changing the cell membrane permeability in a P2X7 receptor-dependent manner. Besides, considering antibacterial and osteogenic efficiency and a high degree of safety in rat osteomyelitis model, shock wave-assisted vancomycin treatment may thus represent a possible adjuvant therapy for chronic osteomyelitis.
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Affiliation(s)
- Jiangbi Li
- Department of Orthopedics , Orthopaedic Center, The First Hospital of Jilin University, Changchun, Jilin, China
- Department of Orthopaedics, Yunnan Cancer Hospital, The Third Affiliated Hospital of Kunming Medical University, Kunming, Yunnan, China
| | - Haixia Li
- Department of Neurology, The Affiliated Hospital of Kunming University of Science and Technology, the First People's Hospital of Yunnan Province, Kunming, Yunnan, China
| | - Songqi Bi
- Department of Orthopedics , Orthopaedic Center, The First Hospital of Jilin University, Changchun, Jilin, China
| | - Yang Sun
- Department of Orthopedics , Orthopaedic Center, The First Hospital of Jilin University, Changchun, Jilin, China
| | - Feng Gu
- Department of Orthopedics , The Second Hospital of Jilin University, Changchun, Jilin, China
| | - Tiecheng Yu
- Department of Orthopedics , Orthopaedic Center, The First Hospital of Jilin University, Changchun, Jilin, China
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Van Hise NW, Petrak RM, Shah K, Diaz M, Chundi V, Redell M. Oritavancin Versus Daptomycin for Osteomyelitis Treatment After Surgical Debridement. Infect Dis Ther 2024; 13:535-547. [PMID: 38421519 DOI: 10.1007/s40121-024-00925-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2023] [Accepted: 01/16/2024] [Indexed: 03/02/2024] Open
Abstract
INTRODUCTION Weekly intravenous (IV) oritavancin and daily daptomycin were compared in an outpatient setting following extensive surgical debridement for treating patients with osteomyelitis. METHODS This was a retrospective, observational study of patients diagnosed with acute osteomyelitis. Exclusion criteria were the use of Gram-negative antibiotic therapy, use of antibiotics for more than 48 h prior to oritavancin or daptomycin or prior use of > 2 doses of oritavancin or more than 4 weeks of daptomycin. Clinical success was resolution or improvement of symptoms and no further treatment. Data were analyzed with Chi-square test or Fisher's exact test. RESULTS Consecutive outpatients (n = 150) with acute osteomyelitis who were treated with oritavancin or daptomycin (1:1) following extensive surgical debridement were identified. Staphylococcus aureus was the most common pathogen (n = 117). No patient in either group received prior antibiotic therapy (previous 30 days) or was hospitalized within 90 days prior to surgical debridement. Twenty-one (28%) patients prescribed oritavancin had chronic kidney disease, seven of whom were receiving hemodialysis or peritoneal dialysis. Compared to oritavancin, patients prescribed daptomycin had higher rates of all-cause readmission [odds ratio (OR) 2.89; p < 0.001], more infection-related readmission (OR 3.19; p < 0.001), and greater likelihood of receiving antibiotics post-discontinuation of initial therapy (OR 2.13; p < 0.001). Repeat surgical debridement was required for 68.0% with daptomycin vs. 23.1% with oritavancin (p < 0.001). CONCLUSIONS Oritavancin demonstrated a significantly higher rate of clinical success compared to daptomycin, with lower all-cause and infection-related readmissions, reduced need for repeat surgical debridement, and fewer additional antibiotic requirements.
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Affiliation(s)
| | - Russell M Petrak
- Metro Infectious Disease Consultants (MIDC), Burr Ridge, IL, 60527, USA
| | - Kairav Shah
- Metro Infectious Disease Consultants (MIDC), Stockbridge, GA, 30281, USA
| | - Melina Diaz
- Metro Infectious Disease Consultants (MIDC), Stockbridge, GA, 30281, USA
| | - Vishnu Chundi
- Metro Infectious Disease Consultants (MIDC), Chicago, IL, 60618, USA
| | - Mark Redell
- Melinta Therapeutics, Medical Affairs, Parsippany-Troy Hills, USA
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Bouiller K, Jacko NF, Shumaker MJ, Talbot BM, Read TD, David MZ. Factors associated with foreign body infection in methicillin-resistant Staphylococcus aureus bacteremia. Front Immunol 2024; 15:1335867. [PMID: 38433826 PMCID: PMC10904584 DOI: 10.3389/fimmu.2024.1335867] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2023] [Accepted: 02/05/2024] [Indexed: 03/05/2024] Open
Abstract
Background We aimed to compare patient characteristics, MRSA sequence types, and biofilm production of MRSA strains that did and did not cause a foreign body infection in patients with MRSA bloodstream infections (BSI). Methods All adult patients with MRSA BSI hospitalized in two hospitals were identified by clinical microbiology laboratory surveillance. Only patients who had at least one implanted foreign body during the episode of BSI were included. Results In July 2018 - March 2022, of 423 patients identified with MRSA BSI, 118 (28%) had ≥1 foreign body. Among them, 51 (43%) had one or more foreign body infections. In multivariable analysis, factors associated with foreign body infection were history of MRSA infection in the last year (OR=4.7 [1.4-15.5], p=0.012) community-associated BSI (OR=68.1 [4.2-1114.3], p=0.003); surgical site infection as source of infection (OR=11.8 [2-70.4], p=0.007); presence of more than one foreign body (OR=3.4 [1.1-10.7], p=0.033); interval between foreign body implantation and infection <18 months (OR=3.3 [1.1-10], p=0.031); and positive blood culture ≥48h (OR=16.7 [4.3-65.7], p<0.001). The most prevalent sequence type was ST8 (39%), followed by ST5 (29%), and ST105 (20%) with no significant difference between patients with or without foreign body infection. Only 39% of MRSA isolates formed a moderate/strong biofilm. No significant difference was observed between patients with foreign body infection and those without foreign body infection. In multivariable analysis, subjects infected with a MRSA isolate producing moderate/strong in vitro biofilm were more likely to have a history of MRSA infection in the last year (OR=3.41 [1.23-9.43]), interval between foreign body implantation and MRSA BSI <18 months (OR=3.1 [1.05-9.2]) and ST8 (OR=10.64 [2-57.3]). Conclusion Most factors associated with foreign body infection in MRSA BSI were also characteristic of persistent infections. Biofilm-forming isolates were not associated with a higher risk of foreign-body infection but appeared to be associated with MRSA genetic lineage, especially ST8.
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Affiliation(s)
- Kevin Bouiller
- Division of Infectious Diseases, Department of Medicine, University of Pennsylvania, Philadelphia, PA, United States
- Université de Franche-Comté, CHU Besançon, UMR-CNRS 6249 Chrono-environnement, Department of Infectious and Tropical Diseases, Besançon, France
| | - Natasia F Jacko
- Division of Infectious Diseases, Department of Medicine, University of Pennsylvania, Philadelphia, PA, United States
| | - Margot J Shumaker
- Division of Infectious Diseases, Department of Medicine, University of Pennsylvania, Philadelphia, PA, United States
| | - Brooke M Talbot
- Division of Infectious Diseases, Department of Medicine, Emory University School of Medicine, Atlanta, GA, United States
| | - Timothy D Read
- Division of Infectious Diseases, Department of Medicine, Emory University School of Medicine, Atlanta, GA, United States
| | - Michael Z David
- Division of Infectious Diseases, Department of Medicine, University of Pennsylvania, Philadelphia, PA, United States
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Arakkal A, Centner CM, Hilton T, Nortje M, Held M, Roche S, Brink AJ, Mendelson M, Laubscher M. Developing an antibiogram for empiric antibiotic prescribing for adult non-spinal orthopaedic infections in a developing world setting. EUROPEAN JOURNAL OF ORTHOPAEDIC SURGERY & TRAUMATOLOGY : ORTHOPEDIE TRAUMATOLOGIE 2024; 34:815-821. [PMID: 37713001 PMCID: PMC10858143 DOI: 10.1007/s00590-023-03718-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/27/2023] [Accepted: 08/27/2023] [Indexed: 09/16/2023]
Abstract
PURPOSE Empiric antibiotic strategies in the treatment of fracture-related infections, chronic osteomyelitis, prosthetic joint infection, and septic arthritis should be based on local microbiological antibiograms. This study aims to describe the microbiology and review the antibiogram profiles of bacterial isolates from patients undergoing surgical treatment for non-spinal orthopaedic infections, to identify the most appropriate empiric antibiotic strategy. METHODS A retrospective review was performed of all cases of non-spinal orthopaedic infections treated surgically from 1 January 2018 to 31 December 2018. The National Health Laboratory Service microbiology database was used to identify all intra-operative microbiological specimens obtained from orthopaedic patients, and data were correlated with the orthopaedic surgical database. Cases were divided into fracture-related infections, chronic osteomyelitis, prosthetic joint infection, and septic arthritis. Antibiotic susceptibility data were used to predict the efficacy of different empiric antibiotic regimens. RESULTS A total of 107 cases were included in the study; 184 organisms were cultured. Overall, the most common organism cultured was Staphylococcus aureus (25%) followed by Acinetobacter baumannii (9%), Enterococcus faecalis (7%) and Enterobacter cloacae (5%). Across all categories the oral antibiotic combination with the highest effectiveness (81%) would have been a combination of co-trimoxazole, ciprofloxacin and amoxicillin. The most effective intravenous antibiotic combination would have been either piperacillin-tazobactam, amikacin and vancomycin or meropenem and vancomycin; 90% of tested isolates were susceptible to either of these combinations. CONCLUSION Antibiogram profiles can serve to guide to empiric antibiotic choice in the management of different categories of non-spinal orthopaedic infections.
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Affiliation(s)
- Ashley Arakkal
- Orthopaedic Research Unit, Division of Orthopaedic Surgery, H49 OMB, Groote Schuur Hospital, University of Cape Town, Cape Town, 7925, South Africa.
| | - Chad M Centner
- Division of Medical Microbiology, University of Cape Town and National Health Laboratory Service, Groote Schuur Hospital, Cape Town, South Africa
| | - Thomas Hilton
- Orthopaedic Research Unit, Division of Orthopaedic Surgery, H49 OMB, Groote Schuur Hospital, University of Cape Town, Cape Town, 7925, South Africa
| | - Marc Nortje
- Orthopaedic Research Unit, Division of Orthopaedic Surgery, H49 OMB, Groote Schuur Hospital, University of Cape Town, Cape Town, 7925, South Africa
| | - Michael Held
- Orthopaedic Research Unit, Division of Orthopaedic Surgery, H49 OMB, Groote Schuur Hospital, University of Cape Town, Cape Town, 7925, South Africa
| | - Stephen Roche
- Orthopaedic Research Unit, Division of Orthopaedic Surgery, H49 OMB, Groote Schuur Hospital, University of Cape Town, Cape Town, 7925, South Africa
| | - Adrian J Brink
- Division of Medical Microbiology, University of Cape Town and National Health Laboratory Service, Groote Schuur Hospital, Cape Town, South Africa
| | - Marc Mendelson
- Division of Infectious Diseases and HIV Medicine, Department of Medicine, Groote Schuur Hospital University of Cape Town, Cape Town, South Africa
| | - Maritz Laubscher
- Orthopaedic Research Unit, Division of Orthopaedic Surgery, H49 OMB, Groote Schuur Hospital, University of Cape Town, Cape Town, 7925, South Africa
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Carbonell-Rosell C, Lakhani K, Lung M, Nadal P, Rodriguez-Pardo D, Corona PS. Etiology and antimicrobial resistance patterns in chronic osteomyelitis of the tibia: an 11-year clinical experience. Arch Orthop Trauma Surg 2024; 144:773-781. [PMID: 38133804 DOI: 10.1007/s00402-023-05095-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/28/2022] [Accepted: 09/27/2023] [Indexed: 12/23/2023]
Abstract
PURPOSE To analyze changes in tendency of etiology and of antimicrobial resistance patterns to most common local and systemic antibiotics in chronic osteomyelitis of the tibia (COM-T) in a Level I trauma center over an 11-year period. METHODS A retrospective review including all patients with COM-T who were surgically treated from January 2009 to December 2019. Patients were divided into two period groups: 2009-2014 and 2015-2019. Microbiologic etiology was analyzed. Bacterial resistance patterns evaluation was based on the Magiorakos et al. classification, including proportions of multidrug-resistant organisms (MDROs, acquired non-susceptibility to at least one agent in three or more antimicrobial categories), extensively drug-resistant (XDR) and pan drug-resistant (PDR) organisms encountered. RESULTS A total of 173 episodes of COM-T were identified. Monomicrobial infections represented 47.4% of all cases, while 28.3% had polymicrobial infections. Negative deep-bone cultures were identified in 24.3% of the patients. The most commonly isolated microorganisms were coagulase-negative Staphylococci (24.5%) and S. aureus (20.5%). No differences were found when comparing Gram-positive infections between periods (58.3% for 2009-2014 vs. 46.7% for 2015-2019; p = 0.10). Findings were similar for Gram-negative infections (37% vs. 33.7%; p = 0.62), although more polymicrobial infections were detected (24.7% vs. 33.3%, respectively; p = 0.359). MDROs were involved in 15% of the cases, with an upward trend when comparing both periods (12.8% vs. 23.6%; p = 0.07). The most-used combination of local antibiotics-glycopeptide (vancomycin) plus aminoglycoside (gentamicin or tobramycin)-was met with low rates of resistance in the most frequently isolated microorganisms. CONCLUSION According to the results of the present study, rates of Gram-positive and Gram-negative infections remained consistent during the two study periods, but with an upward trend in MDRO and polymicrobial infections detected. The local combination of a glycopeptide plus an aminoglycoside was effective in treating the most frequently isolated microorganisms.
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Affiliation(s)
- Carla Carbonell-Rosell
- Orthopaedic Surgery and Traumatology Department, Hospital Universitari Vall d'Hebron, Passeig Vall d'Hebron, 119-129, 08035, Barcelona, Spain
- Department of Surgery, Universitat Autònoma de Barcelona, 08193, Barcelona, Spain
| | - Kushal Lakhani
- Orthopaedic Surgery and Traumatology Department, Hospital Universitari Vall d'Hebron, Passeig Vall d'Hebron, 119-129, 08035, Barcelona, Spain.
- Septic and Reconstructive Surgery Unit, Orthopaedic Surgery and Traumatology Department, Hospital Universitari Vall d'Hebron, Passeig Vall d'Hebron, 119-129, Barcelona, Spain.
- Department of Surgery, Universitat Autònoma de Barcelona, 08193, Barcelona, Spain.
| | - Mayli Lung
- Microbiology Department, Hospital Universitari Vall d'Hebron, Passeig Vall d'Hebron, 119-129, Barcelona, Spain
- CIBERINFEC, Madrid, Spain
- Department of Surgery, Universitat Autònoma de Barcelona, 08193, Barcelona, Spain
| | - Patricia Nadal
- Microbiology Department, Hospital Universitari Vall d'Hebron, Passeig Vall d'Hebron, 119-129, Barcelona, Spain
- Department of Surgery, Universitat Autònoma de Barcelona, 08193, Barcelona, Spain
| | - Dolors Rodriguez-Pardo
- Infectious Diseases Department, Hospital Universitari Vall d'Hebron, Passeig Vall d'Hebron, 119-129, Barcelona, Spain
- CIBERINFEC, Madrid, Spain
- Department of Surgery, Universitat Autònoma de Barcelona, 08193, Barcelona, Spain
| | - Pablo S Corona
- Orthopaedic Surgery and Traumatology Department, Hospital Universitari Vall d'Hebron, Passeig Vall d'Hebron, 119-129, 08035, Barcelona, Spain
- Septic and Reconstructive Surgery Unit, Orthopaedic Surgery and Traumatology Department, Hospital Universitari Vall d'Hebron, Passeig Vall d'Hebron, 119-129, Barcelona, Spain
- Musculoskeletal Tissue Engineering Group, Vall d'Hebron Research Institute, Barcelona, Spain
- Department of Surgery, Universitat Autònoma de Barcelona, 08193, Barcelona, Spain
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Otto-Lambertz C, Yagdiran A, Boschert AL, Eysel P, Walker SV. Detection of Cutibacterium (Propionibacterium) acnes in orthopaedic surgery: serious problem or contamination? INTERNATIONAL ORTHOPAEDICS 2024; 48:337-344. [PMID: 37730929 PMCID: PMC10799792 DOI: 10.1007/s00264-023-05981-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/05/2023] [Accepted: 09/07/2023] [Indexed: 09/22/2023]
Abstract
PURPOSE Bone and joint infections are an important and increasing problem. Whether intraoperatively detected bacteria should be considered relevant or not is often difficult to assess. This retrospective cohort study analyzes the relevance of C. acnes cultured from deep intraoperative specimens. METHODS All deep tissue samples collected intraoperatively between 2015 and 2020 from a quartiary care provider were evaluated for detection of C. acnes and its therapeutical consequences. Infection rates were determined according to a standardized definition and protocol and analyzed in dependence of patient's demographic data (age and gender), operative parameters (type of surgery, body region/location of surgery, and impression of the surgeon), and initiated therapy. RESULTS In 270 cases of more than 8500 samples, C. acnes was detected. In 30%, the detection was considered an infection. The number of samples taken and tested positive for C. acnes correlated significantly with its classification as a cause of infection. If more than one sample of the patient was positive, the detection was significantly more likely to be treated as infection (p < 0.001). In 76% of cases, a consultation to the infectious diseases (ID) department took place regarding the classification of the pathogen detection and the therapy to be carried out. Almost all of the tested isolates demonstrated the wild-type susceptibility for penicillin and clindamycin. CONCLUSION Intraoperative detection of skin-colonizing bacteria such as C. acnes is not always synonymous with infection. In particular, if other examination results contradict an infection (pathological sample without evidence of an infectious event, detection of malignant cells, etc.), the situation must be considered in a very differentiated manner. Interdisciplinary boards, for example, are suitable for this purpose. Care should be taken to obtain a sufficiently large number of tissue samples for microbiological examination to be able to better classify the result.
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Affiliation(s)
- Christina Otto-Lambertz
- Department of Orthopaedic Surgery, University of Cologne, Kerpener Straße 62, 50937, Cologne, Germany.
| | - Ayla Yagdiran
- Department of Orthopaedic Surgery, University of Cologne, Kerpener Straße 62, 50937, Cologne, Germany
| | - Alessa Lalinka Boschert
- Institute for Medical Microbiology, Immunology and Hygiene, University of Cologne, Goldenfelsstraße 19-21, 50935, Cologne, Germany
| | - Peer Eysel
- Department of Orthopaedic Surgery, University of Cologne, Kerpener Straße 62, 50937, Cologne, Germany
| | - Sarah Victoria Walker
- Institute for Medical Microbiology, Immunology and Hygiene, University of Cologne, Goldenfelsstraße 19-21, 50935, Cologne, Germany
- German Centre for Infection Research (DZIF), Hannover, Germany
- Institute for Clinical Microbiology and Hospital Hygiene, Hospital Ludwigsburg, Ludwigsburg, Germany
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Wilson SB, Ward J, Dhaliwal J, Sette K, Ambreen Y, Ammerman SA, Keister A, Vignolles-Jeong J, Gibbs D, Mallory N, Eaton RG, Xu D, Viljoen S, Grossbach A. CT guided biopsy for osteodiscitis reduces cost of hospitalization in the landscape of increasing intravenous drug use: A single center retrospective analysis. Clin Neurol Neurosurg 2024; 237:108150. [PMID: 38308938 DOI: 10.1016/j.clineuro.2024.108150] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2023] [Revised: 01/26/2024] [Accepted: 01/28/2024] [Indexed: 02/05/2024]
Abstract
OBJECTIVE Osteodiscitis has been demonstrated to show significant morbidity and mortality. Cultures and CT guided biopsy (CTB) are commonly used diagnosis of osteodiscitis. This study's purpose is to evaluate the cost burden of CTB and to evaluate how IVDU affects patient management in the setting of osteodiscitis. METHODS Patients admitted for osteodiscitis from 2011-2021 were retrospectively reviewed and stratified into cohorts by CTB status. Additional cohorts were stratified by Intravenous Drug Use (IVDU). Patient demographics, total cost of hospitalization, length of hospitalization, time to biopsy, IVDU status, and other factors were recorded. T-Test, Chi-squared analysis, and ANOVA were used for statistical analysis. RESULTS Total cost of hospitalization was recorded for 140 patients without CTB and 346 patients with CTB. Average cost of hospitalization for non-CTB was $227,317.86 compared to CTB at $119,799.20 (p < 0.001). Length of stay (LOS) was found to be 18.01 days for non-CTB and 14.07 days for CTB patients (0.00282). When stratified by days until biopsy, patients who had CTB sooner, had significantly reduced cost of hospitalization (p = 0.0003). Patients with IVDU history were significantly younger (p < 0.001) with lower BMI (p < 0.001) and a significantly different clinical profile. There was a significant difference in positive open biopsy when separated by IVDU status (p = 0.025). CONCLUSION CTB was associated with significantly reduced cost of hospitalization and LOS compared to non-CTB. IVDU patients with osteodiscitis have significantly different clinical profiles than non-IVDU that may impact diagnosis and treatment. Further work is indicated to elucidate causes of these differences to provide high value care to patients with osteodiscitis.
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Affiliation(s)
- Seth B Wilson
- The Ohio State University College of Medicine, Columbus, OH, USA.
| | - Jacob Ward
- The Ohio State University College of Medicine, Columbus, OH, USA
| | - Joravar Dhaliwal
- Department of Neurological Surgery, The Ohio State University College of Medicine, Columbus, OH, USA
| | - Katelyn Sette
- The Ohio State University College of Medicine, Columbus, OH, USA
| | - Yamenah Ambreen
- The Ohio State University College of Medicine, Columbus, OH, USA
| | | | | | | | - David Gibbs
- The Ohio State University College of Medicine, Columbus, OH, USA
| | - Noah Mallory
- The Ohio State University College of Medicine, Columbus, OH, USA
| | - Ryan G Eaton
- Department of Neurological Surgery, The Ohio State University College of Medicine, Columbus, OH, USA
| | - David Xu
- Department of Neurological Surgery, The Ohio State University College of Medicine, Columbus, OH, USA
| | - Stephanus Viljoen
- Department of Neurological Surgery, The Ohio State University College of Medicine, Columbus, OH, USA
| | - Andrew Grossbach
- Department of Neurological Surgery, The Ohio State University College of Medicine, Columbus, OH, USA
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Sabir N, Akkaya Z. Musculoskeletal infections through direct inoculation. Skeletal Radiol 2024:10.1007/s00256-024-04591-w. [PMID: 38291151 DOI: 10.1007/s00256-024-04591-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/31/2023] [Revised: 01/11/2024] [Accepted: 01/11/2024] [Indexed: 02/01/2024]
Abstract
Musculoskeletal infections consist of different clinical conditions that are commonly encountered in daily clinical settings. As clinical findings and even laboratory tests cannot always be specific, imaging plays a crucial role in the diagnosis and treatment of these cases. Musculoskeletal infections most commonly occur secondary to direct inoculation into the skin involuntarily affected by trauma, microorganism, foreign bodies, or in diabetic ulcers; direct infections can also occur from voluntary causes due to surgery, vaccinations, or other iatrogenic procedures. Hematogenous spread of infection from a remote focus can also be a cause for musculoskeletal infections. Risk factors for soft tissue and bone infections include immunosuppression, old age, corticosteroid use, systemic illnesses, malnutrition, obesity, and burns. Most literature discusses musculoskeletal infections according to the diagnostic tools or forms of infection seen in different soft tissue anatomical planes or bones. This review article aims to evaluate musculoskeletal infections that occur due to direct inoculation to the musculoskeletal tissues, by focusing on the traumatic mechanism with emphasis on the radiological findings.
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Affiliation(s)
- Nuran Sabir
- Department of Radiology, Faculty of Medicine, Pamukkale University, Kinikli Kampusu, 20100, Denizli, Turkey.
| | - Zehra Akkaya
- Department of Radiology, Faculty of Medicine, İbni Sina Hospital, Ankara University, Ankara, Turkey
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Matcuk GR, Skalski MR, Patel DB, Fields BKK, Waldman LE, Spinnato P, Gholamrezanezhad A, Katal S. Lower extremity infections: Essential anatomy and multimodality imaging findings. Skeletal Radiol 2024:10.1007/s00256-024-04567-w. [PMID: 38244060 DOI: 10.1007/s00256-024-04567-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/24/2023] [Revised: 09/23/2023] [Accepted: 01/04/2024] [Indexed: 01/22/2024]
Abstract
In modern practice, imaging plays an integral role in the diagnosis, evaluation of extent, and treatment planning for lower extremity infections. This review will illustrate the relevant compartment anatomy of the lower extremities and highlight the role of plain radiographs, CT, US, MRI, and nuclear medicine in the diagnostic workup. The imaging features of cellulitis, abscess and phlegmon, necrotizing soft tissue infection, pyomyositis, infectious tenosynovitis, septic arthritis, and osteomyelitis are reviewed. Differentiating features from noninfectious causes of swelling and edema are discussed.
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Affiliation(s)
- George R Matcuk
- Department of Imaging, Cedars-Sinai Medical Center, 8700 Beverly Blvd, Ste M-335, Los Angeles, CA, 90048, USA.
| | - Matthew R Skalski
- Department of Radiology, Palmer College of Chiropractic - West Campus, San Jose, CA, 95134, USA
| | - Dakshesh B Patel
- Department of Radiology, Keck School of Medicine, University of Southern California, Los Angeles, CA, 90033, USA
| | - Brandon K K Fields
- Department of Radiology & Biomedical Imaging, University of California, San Francisco, San Francisco, CA, 94143, USA
| | - Leah E Waldman
- Department of Radiology, Duke University School of Medicine, Durham, NC, 27705, USA
| | - Paolo Spinnato
- Diagnostic and Interventional Radiology, IRCCS Istituto Ortopedico Rizzoli, 40136, Bologna, Italy
| | - Ali Gholamrezanezhad
- Department of Imaging, Cedars-Sinai Medical Center, 8700 Beverly Blvd, Ste M-335, Los Angeles, CA, 90048, USA
- Department of Radiology, Keck School of Medicine, University of Southern California, Los Angeles, CA, 90033, USA
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Kurowicki J, Changoor S, Coban D, Patel N, Sinha K, Hwang K, Emami A. The Impact of Patient Characteristics on Outcomes of Surgically Managed Vertebral Osteomyelitis in the United States: Insights from a National Database Study. J Long Term Eff Med Implants 2024; 34:83-94. [PMID: 38505897 DOI: 10.1615/jlongtermeffmedimplants.2023049402] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/21/2024]
Abstract
This study was conducted to assess the patient characteristics, types of treatment, and outcomes of patients who are surgically treated for vertebral osteomyelitis (VO) in the United States. VO can be treated with or without surgical intervention. Surgically treated cases of VO are associated with significant morbidity and mortality, and incur major healthcare costs. There are few studies assessing the characteristics and outcomes of patients with VO who are treated surgically, as well as the overall impact of surgically managed VO on the healthcare system of the United States. Utilizing the Nationwide Inpatient Sample (NIS) database, 44,401 patients were identified who underwent surgical treatment for VO over a fifteen year period. Severity of comorbidity burden was calculated using the Deyo Index (DI). Surgical approach and comorbidities were analyzed in regard to their impact on complications, mortality rate, LOS, and hospitalization charges. The incidence of surgical intervention for patients who had VO increased from 0.6 to 1.1 per U.S. persons over the study period. Surgically treated patients had a mean age of 56 years, were 75.8% white, were 54.5% male, 37.9% carried Medicare insurance, and they had a mean DI of 0.88. Anterior/posterior approach (OR: 3.53), thoracolumbar fusion (OR: 2.69), thoracolumbar fusion (OR: 19.94), and anterior/posterior approach (OR: 64.73) were the surgical factors that most significantly predicted any complication, mortality, increased LOS, and increased hospital charges, respectively (P < 0.001). The mean inflation-adjusted total hospital cost increased from $20,355 to $39,991 per patient over the study period. VO has been steadily increasing in the United States. Incidence and inflation-adjusted costs nearly doubled. Anterior/posterior approach and thoracolumbar fusion most significantly predicted negative outcomes. VO is associated with lengthy and expensive hospital stays resulting in a significant burden to patients and the healthcare system.
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Affiliation(s)
- Jennifer Kurowicki
- St. Joseph's University Medical Center, Department of Orthopedic Surgery, Paterson, New Jersey 07503
| | - Stuart Changoor
- St. Joseph's University Medical Center, Department of Orthopaedic Surgery, 703 Main Street, Paterson, NJ 07503
| | - Daniel Coban
- St. Joseph's University Medical Center, Department of Orthopaedic Surgery, 703 Main Street, Paterson, NJ 07503
| | - Neil Patel
- St. Joseph's University Medical Center, Department of Orthopaedic Surgery, Paterson, NJ 07503
| | - Kumar Sinha
- St. Joseph's University Medical Center, Department of Orthopaedic Surgery, 703 Main Street, Paterson, NJ 07503
| | - Ki Hwang
- St. Joseph's University Medical Center, Department of Orthopaedic Surgery, Paterson, NJ 07503
| | - Arash Emami
- St. Joseph's University Medical Center, Department of Orthopaedic Surgery, 703 Main Street, Paterson, NJ 07503
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Arora S, Rai V, Tripathi D, Chaudhary SM, Singh A, Chowdary M. Osteomyelitis Masquerading as Cellulitis: A Case Report. Cureus 2024; 16:e53238. [PMID: 38425588 PMCID: PMC10903755 DOI: 10.7759/cureus.53238] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/30/2024] [Indexed: 03/02/2024] Open
Abstract
Osteomyelitis, a significant global healthcare issue, often results from infections related to open fractures, surgery, or conditions like diabetic foot ulcers. This report describes a case of osteomyelitis in a 62-year-old female with various pre-existing health conditions. The patient initially presented with swelling, pain, and difficulty walking in the right lower extremity, accompanied by systemic symptoms. Despite an initial diagnosis of cellulitis and treatment with ceftriaxone, a subsequent CT scan revealed a pretibial abscess and confirmed osteomyelitis caused by pan-sensitive Escherichia coli. Surgical debridement was performed, and the patient received six weeks of intravenous antibiotics. Hence, a heightened level of suspicion is essential to facilitate a timely diagnosis of osteomyelitis and enhance long-term prognosis. The case underscores the importance of a multidisciplinary approach, including meticulous surgical intervention and tailored antimicrobial therapy, in achieving positive outcomes for osteomyelitis patients.
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Affiliation(s)
- Sanjiya Arora
- Internal Medicine, Sub-Divisional Hospital (SDH) cum Civil Hospital, Fatehabad, IND
| | - Vikramaditya Rai
- Orthopedics, Dr. Rajendra Prasad Government Medical College & Hospital, Kangra, IND
| | | | - Sachin M Chaudhary
- Internal Medicine, Gujarat Cancer Society (GCS) Medical College, Hospital and Research Centre, Ahmedabad, IND
| | - Ajay Singh
- Internal Medicine, Shri Ram Murti Smarak Institute of Medical Sciences, Bareilly, IND
| | - Mohitha Chowdary
- Internal Medicine, Sri Venkateswara Institute of Medical Sciences (SVIMS), Tirupati, IND
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Schmidt BM, Keeney-Bonthrone TP, Hawes AM, Karmakar M, Frydrych LM, Cinti SK, Pop-Busui R, Delano MJ. Comorbid status in patients with osteomyelitis is associated with long-term incidence of extremity amputation. BMJ Open Diabetes Res Care 2023; 11:e003611. [PMID: 38164707 PMCID: PMC10729224 DOI: 10.1136/bmjdrc-2023-003611] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/30/2023] [Accepted: 10/14/2023] [Indexed: 01/03/2024] Open
Abstract
INTRODUCTION Osteomyelitis is associated with significant morbidity, including amputation. There are limited data on long-term amputation rates following an osteomyelitis diagnosis. We sought to determine the incidence of amputation in patients with osteomyelitis over 2 years. RESEARCH DESIGN AND METHODS Observational cohort study of 1186 inpatients with osteomyelitis between 2004 and 2015 and stratified by osteomyelitis location status to evaluate the impact on amputation, mortality rates, readmission data, and inpatient days. RESULTS Persons with diabetes had 3.65 times greater probability of lower extremity amputation (p<0.001), readmission (p<0.001), and longer inpatient stay (p<0.001) and had higher 2-year mortality (relative risk (RR) 1.23, p=0.0027), adjusting for risk factors. Male gender (RR 1.57, p<0.001), black race (RR 1.41, p<0.05), former smoking status (RR 1.38, p<0.01), myocardial infarction (RR 1.72, p<0.001), congestive heart failure (RR 1.56, p<0.001), peripheral vascular disease (RR 2.25, p<0.001) and renal disease (RR 1.756, p<0.001) were independently associated with amputation. Male gender (RR 1.39, p<0.01), black race (RR 1.27, p<0.05), diabetes (RR 2.77, p<0.001) and peripheral vascular disease (RR 1.59, p<0.001) had increased risk of lower, not upper, extremity amputation. CONCLUSIONS Patients with osteomyelitis have higher rates of amputation and hospitalization. Clinicians must incorporate demographic and comorbid risk factors to protect against amputation.
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Affiliation(s)
- Brian M Schmidt
- Internal Medicine, University of Michigan Medical School, Ann Arbor, Michigan, USA
| | | | - Armani M Hawes
- Department of Surgery, University of Michigan, Ann Arbor, Michigan, USA
| | - Monika Karmakar
- Department of Surgery, University of Michigan, Ann Arbor, Michigan, USA
| | - Lynn M Frydrych
- Department of Surgery, University of Michigan, Ann Arbor, Michigan, USA
| | - Sandro K Cinti
- Internal Medicine, University of Michigan Medical School, Ann Arbor, Michigan, USA
| | - Rodica Pop-Busui
- Internal Medicine, University of Michigan Medical School, Ann Arbor, Michigan, USA
| | - Matthew J Delano
- Department of Surgery, University of Michigan, Ann Arbor, Michigan, USA
- Department of Surgery, University of Michigan, Ann Arbor, Michigan, USA
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Sharipova A, Zlotver I, Sosnik A, Rabkin E. Solid-State Dewetting of Thin Au Films for Surface Functionalization of Biomedical Implants. MATERIALS (BASEL, SWITZERLAND) 2023; 16:7524. [PMID: 38138670 PMCID: PMC10744913 DOI: 10.3390/ma16247524] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/30/2023] [Revised: 11/28/2023] [Accepted: 12/02/2023] [Indexed: 12/24/2023]
Abstract
Biomaterial-centered infections of orthopedic implants remain a significant burden in the healthcare system due to sedentary lifestyles and an aging population. One approach to combat infections and improve implant osteointegration is functionalizing the implant surface with anti-infective and osteoinductive agents. In this framework, Au nanoparticles are produced on the surface of Ti-6Al-4V medical alloy by solid-state dewetting of 5 nm Au film and used as the substrate for the conjugation of a model antibiotic vancomycin via a mono-thiolated poly(ethylene glycol) linker. Produced Au nanoparticles on Ti-6Al-4V surface are equiaxed with a mean diameter 19.8 ± 7.2 nm, which is shown by high-resolution scanning electron microscopy and atomic force microscopy. The conjugation of the antibiotic vancomycin, 18.8 ± 1.3 nm-thick film, is confirmed by high resolution-scanning transmission electron microscopy and X-ray photoelectron spectroscopy. Overall, showing a link between the solid-state dewetting process and surface functionalization, we demonstrate a novel, simple, and versatile method for functionalization of implant surfaces.
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Affiliation(s)
- Aliya Sharipova
- Department of Materials Science and Engineering, Technion–Israel Institute of Technology, Haifa 3200003, Israel; (A.S.); (I.Z.); (A.S.)
- Department of Bio- and Nanotechnology, Fraunhofer Institute for Ceramic Technologies and Systems IKTS, 01277 Dresden, Germany
| | - Ivan Zlotver
- Department of Materials Science and Engineering, Technion–Israel Institute of Technology, Haifa 3200003, Israel; (A.S.); (I.Z.); (A.S.)
| | - Alejandro Sosnik
- Department of Materials Science and Engineering, Technion–Israel Institute of Technology, Haifa 3200003, Israel; (A.S.); (I.Z.); (A.S.)
| | - Eugen Rabkin
- Department of Materials Science and Engineering, Technion–Israel Institute of Technology, Haifa 3200003, Israel; (A.S.); (I.Z.); (A.S.)
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Good CJ, Butrico CE, Colley ME, Gibson-Corley KN, Cassat JE, Spraggins JM, Caprioli RM. In situ lipidomics of Staphylococcus aureus osteomyelitis using imaging mass spectrometry. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2023:2023.12.01.569690. [PMID: 38077019 PMCID: PMC10705574 DOI: 10.1101/2023.12.01.569690] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 12/18/2023]
Abstract
Osteomyelitis occurs when Staphylococcus aureus invades the bone microenvironment, resulting in a bone marrow abscess with a spatially defined architecture of cells and biomolecules. Imaging mass spectrometry and microscopy are invaluable tools that can be employed to interrogate the lipidome of S. aureus-infected murine femurs to reveal metabolic and signaling consequences of infection. Here, nearly 250 lipids were spatially mapped to healthy and infection-associated morphological features throughout the femur, establishing composition profiles for tissue types. Ether lipids and arachidonoyl lipids were significantly altered between cells and tissue structures in abscesses, suggesting their roles in abscess formation and inflammatory signaling. Sterols, triglycerides, bis(monoacylglycero)phosphates, and gangliosides possessed ring-like distributions throughout the abscess, indicating dysregulated lipid metabolism in a subpopulation of leukocytes that cannot be discerned with traditional microscopy. These data provide chemical insight into the signaling function and metabolism of cells in the fibrotic border of abscesses, likely characteristic of lipid-laden macrophages.
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Affiliation(s)
- Christopher J. Good
- Mass Spectrometry Research Center, Vanderbilt University, Nashville, TN 37235, USA
- Department of Chemistry, Vanderbilt University, Nashville, TN 37235, USA
| | - Casey E. Butrico
- Department of Pathology, Microbiology, and Immunology, Vanderbilt University Medical Center, Nashville, TN 37232, USA
| | - Madeline E. Colley
- Mass Spectrometry Research Center, Vanderbilt University, Nashville, TN 37235, USA
- Department of Biochemistry, Vanderbilt University, Nashville, TN 37235, USA
| | - Katherine N. Gibson-Corley
- Department of Pathology, Microbiology, and Immunology, Vanderbilt University Medical Center, Nashville, TN 37232, USA
| | - James E. Cassat
- Department of Pathology, Microbiology, and Immunology, Vanderbilt University Medical Center, Nashville, TN 37232, USA
- Department of Pediatrics, Vanderbilt University Medical Center, Nashville, TN 37232, USA
- Department of Biomedical Engineering, Vanderbilt University, Nashville, TN 37235, USA
- Vanderbilt Institute for Infection, Immunology, and Inflammation, Vanderbilt University Medical Center, Nashville, TN 37232, USA
| | - Jeffrey M. Spraggins
- Mass Spectrometry Research Center, Vanderbilt University, Nashville, TN 37235, USA
- Department of Chemistry, Vanderbilt University, Nashville, TN 37235, USA
- Department of Pathology, Microbiology, and Immunology, Vanderbilt University Medical Center, Nashville, TN 37232, USA
- Department of Biochemistry, Vanderbilt University, Nashville, TN 37235, USA
- Vanderbilt Institute for Infection, Immunology, and Inflammation, Vanderbilt University Medical Center, Nashville, TN 37232, USA
- Department of Cell and Developmental Biology, Vanderbilt University, Nashville, TN 37235, USA
| | - Richard M. Caprioli
- Mass Spectrometry Research Center, Vanderbilt University, Nashville, TN 37235, USA
- Department of Chemistry, Vanderbilt University, Nashville, TN 37235, USA
- Department of Biochemistry, Vanderbilt University, Nashville, TN 37235, USA
- Department of Medicine, Vanderbilt University, Nashville, TN 37235, USA
- Department of Pharmacology, Vanderbilt University, Nashville, TN 37235, USA
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Hu M, Sun Z, Tang X, Zeng W, Yan H, Jiang Z, Huang F. Systemic lupus erythematosus Association between Osteomyelitis: A two-sample Mendelian randomization study in European population. Heliyon 2023; 9:e22999. [PMID: 38125497 PMCID: PMC10731233 DOI: 10.1016/j.heliyon.2023.e22999] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2023] [Revised: 10/21/2023] [Accepted: 11/23/2023] [Indexed: 12/23/2023] Open
Abstract
Background Systemic lupus erythematosus (SLE) has been correlated with osteomyelitis (OM), yet the underlying causal relationship remains poorly understood. This study aims to investigate the causal association between SLE and OM using Mendelian randomization (MR) analysis. Methods Genetic instrumental variables (IVs) correlated with SLE were extracted from a comprehensive genome-wide association study (GWAS) summary database (5201 cases and 9066 controls). OM was considered a SLE phenotype, and summary data from the fast GWA data portal were utilized for the analysis. Eligible IVs were extracted following rigorous quality control measures (P < 5 × 10-8, LD r2>0.001, distance 1 Mb, and F > 10). MR analysis was conducted using the Inverse Variance Weighted (IVW), MR-Egger, and Weighted Median (WM) methods after excluding potential confounders. Cochran's Q was applied for heterogeneity test. Pleiotropy was evaluated through MR-Egger intercept, MR-Pleiotropy Residual Sum and Outlier (MR-PRESSO) method, and Leave-one-SNP-out analysis. Result A total of 40 eligible IVs were included for MR analysis. IVW results demonstrated a positive causal association between SLE and OM (P = 0.049, OR = 1.167). Heterogeneity analysis reveal no significant heterogeneity in the IVW analysis (P = 0.5503). Pleiotropy tests, including MR-PRESSO global test and MR-Egger intercept, indicated no evidence of pleiotropy in our findings (P > 0.05). Additionally, the Leave-one-SNP-out analysis showed no substantial deviations when removing individual SNPs, thus supporting the robustness of our results. Conclusion This study establishes a genetic causal relationship between SLE and OM, indicating an increased risk of developing OM in individuals with SLE. Therefore, proactive management of SLE is advised to mitigate the risk of developing OM.
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Affiliation(s)
- Minhua Hu
- Guangzhou University of Chinese Medicine, Guangzhou, China
- The First Clinical College, Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Zhizhong Sun
- Guangzhou University of Chinese Medicine, Guangzhou, China
- The First Clinical College, Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Xintao Tang
- Guangzhou University of Chinese Medicine, Guangzhou, China
- The First Clinical College, Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Wenxing Zeng
- Guangzhou University of Chinese Medicine, Guangzhou, China
- The First Clinical College, Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Hongsong Yan
- Guangzhou University of Chinese Medicine, Guangzhou, China
- The First Clinical College, Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Ziwei Jiang
- Guangzhou University of Chinese Medicine, Guangzhou, China
- The First Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Feng Huang
- Guangzhou University of Chinese Medicine, Guangzhou, China
- The First Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, China
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Zhang Z, Wang R, Xue H, Knoedler S, Geng Y, Liao Y, Alfertshofer M, Panayi AC, Ming J, Mi B, Liu G. Phototherapy techniques for the management of musculoskeletal disorders: strategies and recent advances. Biomater Res 2023; 27:123. [PMID: 38017585 PMCID: PMC10685661 DOI: 10.1186/s40824-023-00458-8] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2023] [Accepted: 10/28/2023] [Indexed: 11/30/2023] Open
Abstract
Musculoskeletal disorders (MSDs), which include a range of pathologies affecting bones, cartilage, muscles, tendons, and ligaments, account for a significant portion of the global burden of disease. While pharmaceutical and surgical interventions represent conventional approaches for treating MSDs, their efficacy is constrained and frequently accompanied by adverse reactions. Considering the rising incidence of MSDs, there is an urgent demand for effective treatment modalities to alter the current landscape. Phototherapy, as a controllable and non-invasive technique, has been shown to directly regulate bone, cartilage, and muscle regeneration by modulating cellular behavior. Moreover, phototherapy presents controlled ablation of tumor cells, bacteria, and aberrantly activated inflammatory cells, demonstrating therapeutic potential in conditions such as bone tumors, bone infection, and arthritis. By constructing light-responsive nanosystems, controlled drug delivery can be achieved to enable precise treatment of MSDs. Notably, various phototherapy nanoplatforms with integrated imaging capabilities have been utilized for early diagnosis, guided therapy, and prognostic assessment of MSDs, further improving the management of these disorders. This review provides a comprehensive overview of the strategies and recent advances in the application of phototherapy for the treatment of MSDs, discusses the challenges and prospects of phototherapy, and aims to promote further research and application of phototherapy techniques.
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Affiliation(s)
- Zhenhe Zhang
- Department of Orthopedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1277 Jiefang Avenue, Wuhan, 430022, China
- Hubei Province Key Laboratory of Oral and Maxillofacial Development and Regeneration, Wuhan, 430022, China
| | - Rong Wang
- Department of Breast and Thyroid Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1277 Jiefang Avenue, Wuhan, 430022, China
| | - Hang Xue
- Department of Orthopedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1277 Jiefang Avenue, Wuhan, 430022, China
- Hubei Province Key Laboratory of Oral and Maxillofacial Development and Regeneration, Wuhan, 430022, China
| | - Samuel Knoedler
- Division of Plastic Surgery, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, 02152, USA
- Institute of Regenerative Biology and Medicine, Helmholtz Zentrum München, Max-Lebsche-Platz 31, 81377, Munich, Germany
| | - Yongtao Geng
- Department of Orthopedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1277 Jiefang Avenue, Wuhan, 430022, China
- Hubei Province Key Laboratory of Oral and Maxillofacial Development and Regeneration, Wuhan, 430022, China
| | - Yuheng Liao
- Department of Orthopedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1277 Jiefang Avenue, Wuhan, 430022, China
- Hubei Province Key Laboratory of Oral and Maxillofacial Development and Regeneration, Wuhan, 430022, China
| | - Michael Alfertshofer
- Division of Hand, Plastic and Aesthetic Surgery, Ludwig-Maximilians-University Munich, Munich, Germany
| | - Adriana C Panayi
- Division of Plastic Surgery, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, 02152, USA
- Department of Hand, Plastic and Reconstructive Surgery, Microsurgery, Burn Center, BG Trauma Center Ludwigshafen, University of Heidelberg, Ludwig-Guttmann-Strasse 13, 67071, Ludwigshafen, Rhine, Germany
| | - Jie Ming
- Department of Breast and Thyroid Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1277 Jiefang Avenue, Wuhan, 430022, China.
| | - Bobin Mi
- Department of Orthopedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1277 Jiefang Avenue, Wuhan, 430022, China.
- Hubei Province Key Laboratory of Oral and Maxillofacial Development and Regeneration, Wuhan, 430022, China.
| | - Guohui Liu
- Department of Orthopedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1277 Jiefang Avenue, Wuhan, 430022, China.
- Hubei Province Key Laboratory of Oral and Maxillofacial Development and Regeneration, Wuhan, 430022, China.
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Voss JO, Heiland M, Preissner R, Preissner S. The risk of osteomyelitis after mandibular fracture is doubled in men versus women: analysis of 300,000 patients. Sci Rep 2023; 13:20871. [PMID: 38012360 PMCID: PMC10682452 DOI: 10.1038/s41598-023-48235-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2023] [Accepted: 11/23/2023] [Indexed: 11/29/2023] Open
Abstract
Postoperative complications following mandibular fracture treatment vary from local wound infections to severe conditions including osteomyelitis and impaired fracture healing. Several risk factors have been associated with the development healing disorders, including fracture localisation, treatment modality and substance abuse. However, limited research on the sex-specific influence of these complications exists. A total of about 300,000 female and male patients with mandibular fractures were examined in two cohorts. After matching for confounders (age, nicotine and alcohol dependence, malnutrition, overweight, anaemia, diabetes, osteoporosis and vitamin D deficiency), two cohorts were compared with propensity-score-matched patients according to outcomes (osteomyelitis, pseudoarthrosis and disruption of the wound) within 1 year after fracture. There were significant differences between female and male patients regarding the occurrence of osteomyelitis (odds ratio [OR] [95% confidence interval]: 0.621 [0.563; 0.686]) and disruption of the wound (OR [95% confidence interval]: 0.703 [0.632; 0.782]). Surprisingly, matching for the expected confounders did not change the results substantially. Sex plays a dominant role in determining the risk stratification for postoperative osteomyelitis and disruption of the wound, after accounting for other potential confounding factors. Additional research is needed to understand the underlying mechanisms and to develop sex-specific strategies to prevent these complications.
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Affiliation(s)
- Jan Oliver Voss
- Department of Oral and Maxillofacial Surgery, Charité - Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität Zu Berlin and Berlin Institute of Health, Augustenburger Platz 1, 13353, Berlin, Germany.
- Berlin Institute of Health (BIH), Anna-Louisa-Karsch-Straße 2, 10178, Berlin, Germany.
| | - Max Heiland
- Department of Oral and Maxillofacial Surgery, Charité - Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität Zu Berlin and Berlin Institute of Health, Augustenburger Platz 1, 13353, Berlin, Germany
| | - Robert Preissner
- Institute of Physiology and Science-IT, Charité - Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität Zu Berlin and Berlin Institute of Health, Philippstr. 12, 10115, Berlin, Germany
| | - Saskia Preissner
- Department of Oral and Maxillofacial Surgery, Charité - Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität Zu Berlin and Berlin Institute of Health, Augustenburger Platz 1, 13353, Berlin, Germany
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Gowda P, Ashikyan O, Pezeshk P, Guirguis M, Archer H, Hoang D, Xi Y, Chhabra A. Diagnostic performance comparison of conventional radiography to magnetic resonance imaging for suspected osteomyelitis of the extremities: a multi-reader study. Eur Radiol 2023; 33:8300-8309. [PMID: 37178199 DOI: 10.1007/s00330-023-09734-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2023] [Revised: 03/30/2023] [Accepted: 05/02/2023] [Indexed: 05/15/2023]
Abstract
OBJECTIVE To determine whether MRI provides improved diagnostic accuracy compared to radiography for the diagnosis of extremity osteomyelitis (OM) with multi-reader analysis. METHODS In this cross-sectional study, three musculoskeletal fellowship-trained expert radiologists evaluated cases of suspected OM in two rounds-first using radiographs (XR), then with conventional MRI. Radiologic features consistent with OM were recorded. Each reader recorded individual findings on both modalities and rendered a binary diagnosis along with certainty of final diagnosis on a confidence scale of 1-5. This was compared with the pathology-proven diagnosis of OM to determine diagnostic performance. Intraclass correlation (ICC) and Conger's Kappa were used for statistics. RESULTS XR and MRIs of 213 pathology proven cases (51.5 years ± 14.0 years, mean ± St.Dev.) were included in this study, with 79 tested positive for OM and 98 were positive for a soft tissue abscess, with 78 patients being negative for both. In total, 139 were males and 74 females with bones of interest in the upper and lower extremities in 29 and 184 cases, respectively. MRI showed significantly higher sensitivity and negative predictive value than XR (p < 0.001 for both metrics). Conger's Kappa for OM diagnosis were 0.62 and 0.74 on XR and MRI, respectively. Reader confidence improved slightly from 4.54 to 4.57 when MRI was used. CONCLUSIONS MRI is a diagnostically more effective imaging modality than XR for finding extremity osteomyelitis with better inter-reader reliability. CLINICAL RELEVANCE STATEMENT This study validates the diagnosis of OM with MRI over XR but adds novelty because it is the largest study of its kind with a clear reference standard to guide clinician decision making. KEY POINTS • Radiography is the first-line imaging modality for musculoskeletal pathology but MRI can add value for infections. • MRI shows greater sensitivity for the diagnosis of osteomyelitis of the extremities than radiography. • This improved diagnostic accuracy makes MRI a better imaging modality for patients with suspected osteomyelitis.
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Affiliation(s)
- Prajwal Gowda
- Radiology Department, UT Southwestern, Dallas, TX, USA
| | | | | | - Mina Guirguis
- Radiology Department, UT Southwestern, Dallas, TX, USA
| | - Holden Archer
- Radiology Department, UT Southwestern, Dallas, TX, USA
| | - Diana Hoang
- Radiology Department, UT Southwestern, Dallas, TX, USA
| | - Yin Xi
- Radiology Department, UT Southwestern, Dallas, TX, USA
| | - Avneesh Chhabra
- Radiology Department, UT Southwestern, Dallas, TX, USA.
- Radiology & Orthopedic Surgery Department, UT Southwestern, Dallas, TX, 75390-9178, USA.
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Zhang K, Bai YZ, Liu C, Liu SS, Lu XX, Yang RG. Composition of pathogenic microorganism in chronic osteomyelitis based on metagenomic sequencing and its application value in etiological diagnosis. BMC Microbiol 2023; 23:313. [PMID: 37891467 PMCID: PMC10612345 DOI: 10.1186/s12866-023-03046-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2023] [Accepted: 10/06/2023] [Indexed: 10/29/2023] Open
Abstract
BACKGROUND Traditionally, conventional microbiological culture methods have been used to detect pathogenic microorganisms in chronic osteomyelitis. However, these methods have been found to have a low detection rate, complicating the precise guidance of infection treatment. This study employed metagenomic next-generation sequencing (mNGS) to detect these microorganisms in chronic osteomyelitis with three main objectives: 1). Gain a deeper understanding of the composition of pathogenic microorganisms in chronic osteomyelitis. 2). Compare the microbial detection rates between mNGS and the standard culture methods used in laboratories to enhance the effectiveness of the traditional culture methods. 3). Explore the potential of mNGS in etiological diagnosis. METHODS Fifty clinically confirmed intraoperative bone tissue samples of chronic osteomyelitis from January 2021 to December 2021 were collected and subjected to mNGS and microbiological testing, respectively. The orthopaedic surgeon combined clinical manifestations and related examinations to determine the causative pathogens. RESULTS The culture method obtained 29 aerobic and parthenogenic anaerobic bacteria, 3 specific anaerobic bacteria, and 1 yeast-like fungus. Thirty-six aerobic and parthenogenic anaerobic bacteria, 11 specific anaerobic bacteria, and 1 yeast-like fungus were obtained by mNGS, and 2 Mycobacterium tuberculosis(MTB) strains were detected. However, there was no significant difference in the overall positive detection rate between mNGS and the culture method (P = 0.07), and the two were not statistically significant in detecting aerobic and partly anaerobic bacteria (P = 0.625). But, mNGS was significantly superior to culture in detecting anaerobic bacteria and Mycobacterium tuberculosis (P<0.05). CONCLUSIONS The mNGS method has enhanced our understanding of the distribution of pathogenic microorganisms in chronic osteomyelitis. Traditional culture methods help isolate and cultivate aerobic and facultative anaerobic bacteria, and fungi, and are also utilized for antibacterial drug sensitivity tests. However, mNGS has shown superior capabilities in detecting anaerobic bacteria, MTB, and mixed infection bacteria. This finding offers invaluable guidance for improving laboratory microbial culture and detection conditions. Hence, mNGS should be judiciously used for chronic osteomyelitis, and PCR can be implemented for certain difficult-to-culture microorganisms, such as MTB.
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Affiliation(s)
- Kang Zhang
- Laboratory Medicine of Beijing Tongren Hospital affiliated to Capital Medical University, Beijing, China
| | - Yu-Zhe Bai
- Department of Tissue Repair and Regeneration, The First Medical Center of PLA General Hospital, Beijing, China
| | - Chang Liu
- Clinical Laboratory of Tsinghua University Hospital, Beijing, China
| | - Shan-Shan Liu
- Laboratory Medicine of Beijing Tongren Hospital affiliated to Capital Medical University, Beijing, China
| | - Xin-Xin Lu
- Laboratory Medicine of Beijing Tongren Hospital affiliated to Capital Medical University, Beijing, China.
| | - Run-Gong Yang
- Department of Tissue Repair and Regeneration, The First Medical Center of PLA General Hospital, Beijing, China
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Aboushaala K, Wong AYL, Barajas JN, Lim P, Al-Harthi L, Chee A, Forsyth CB, Oh CD, Toro SJ, Williams FMK, An HS, Samartzis D. The Human Microbiome and Its Role in Musculoskeletal Disorders. Genes (Basel) 2023; 14:1937. [PMID: 37895286 PMCID: PMC10606932 DOI: 10.3390/genes14101937] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2023] [Revised: 10/06/2023] [Accepted: 10/09/2023] [Indexed: 10/29/2023] Open
Abstract
Musculoskeletal diseases (MSDs) are characterized as injuries and illnesses that affect the musculoskeletal system. MSDs affect every population worldwide and are associated with substantial global burden. Variations in the makeup of the gut microbiota may be related to chronic MSDs. There is growing interest in exploring potential connections between chronic MSDs and variations in the composition of gut microbiota. The human microbiota is a complex community consisting of viruses, archaea, bacteria, and eukaryotes, both inside and outside of the human body. These microorganisms play crucial roles in influencing human physiology, impacting metabolic and immunological systems in health and disease. Different body areas host specific types of microorganisms, with facultative anaerobes dominating the gastrointestinal tract (able to thrive with or without oxygen), while strict aerobes prevail in the nasal cavity, respiratory tract, and skin surfaces (requiring oxygen for development). Together with the immune system, these bacteria have coevolved throughout time, forming complex biological relationships. Changes in the microbial ecology of the gut may have a big impact on health and can help illnesses develop. These changes are frequently impacted by lifestyle choices and underlying medical disorders. The potential for safety, expenses, and efficacy of microbiota-based medicines, even with occasional delivery, has attracted interest. They are, therefore, a desirable candidate for treating MSDs that are chronic and that may have variable progression patterns. As such, the following is a narrative review to address the role of the human microbiome as it relates to MSDs.
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Affiliation(s)
- Khaled Aboushaala
- Department of Orthopedic Surgery, Rush University Medical Center, Chicago, IL 60612, USA; (K.A.); (J.N.B.); (P.L.); (A.C.); (C.-d.O.); (S.J.T.); (H.S.A.)
- International Spine Research and Innovation Initiative, Rush University Medical Center, Chicago, IL 60612, USA
| | - Arnold Y. L. Wong
- Department of Rehabilitation Sciences, The Hong Kong Polytechnic University, Hong Kong SAR, China;
| | - Juan Nicolas Barajas
- Department of Orthopedic Surgery, Rush University Medical Center, Chicago, IL 60612, USA; (K.A.); (J.N.B.); (P.L.); (A.C.); (C.-d.O.); (S.J.T.); (H.S.A.)
- International Spine Research and Innovation Initiative, Rush University Medical Center, Chicago, IL 60612, USA
| | - Perry Lim
- Department of Orthopedic Surgery, Rush University Medical Center, Chicago, IL 60612, USA; (K.A.); (J.N.B.); (P.L.); (A.C.); (C.-d.O.); (S.J.T.); (H.S.A.)
- International Spine Research and Innovation Initiative, Rush University Medical Center, Chicago, IL 60612, USA
| | - Lena Al-Harthi
- Department of Microbial Pathogens and Immunity, Rush University Medical Center, Chicago, IL 60612, USA;
| | - Ana Chee
- Department of Orthopedic Surgery, Rush University Medical Center, Chicago, IL 60612, USA; (K.A.); (J.N.B.); (P.L.); (A.C.); (C.-d.O.); (S.J.T.); (H.S.A.)
- International Spine Research and Innovation Initiative, Rush University Medical Center, Chicago, IL 60612, USA
| | - Christopher B. Forsyth
- Department of Internal Medicine, Rush University Medical Center, Chicago, IL 60612, USA;
| | - Chun-do Oh
- Department of Orthopedic Surgery, Rush University Medical Center, Chicago, IL 60612, USA; (K.A.); (J.N.B.); (P.L.); (A.C.); (C.-d.O.); (S.J.T.); (H.S.A.)
- International Spine Research and Innovation Initiative, Rush University Medical Center, Chicago, IL 60612, USA
| | - Sheila J. Toro
- Department of Orthopedic Surgery, Rush University Medical Center, Chicago, IL 60612, USA; (K.A.); (J.N.B.); (P.L.); (A.C.); (C.-d.O.); (S.J.T.); (H.S.A.)
- International Spine Research and Innovation Initiative, Rush University Medical Center, Chicago, IL 60612, USA
| | | | - Howard S. An
- Department of Orthopedic Surgery, Rush University Medical Center, Chicago, IL 60612, USA; (K.A.); (J.N.B.); (P.L.); (A.C.); (C.-d.O.); (S.J.T.); (H.S.A.)
- International Spine Research and Innovation Initiative, Rush University Medical Center, Chicago, IL 60612, USA
| | - Dino Samartzis
- Department of Orthopedic Surgery, Rush University Medical Center, Chicago, IL 60612, USA; (K.A.); (J.N.B.); (P.L.); (A.C.); (C.-d.O.); (S.J.T.); (H.S.A.)
- International Spine Research and Innovation Initiative, Rush University Medical Center, Chicago, IL 60612, USA
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Wang Y, Sun Z, Liang X, Shen C. Inguinal draining-lymph node in 18F-FDG PET/CT images could be a new indicator for the diagnosis of fracture-related infection in the lower extremities. Front Immunol 2023; 14:1206682. [PMID: 37868952 PMCID: PMC10585159 DOI: 10.3389/fimmu.2023.1206682] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2023] [Accepted: 08/28/2023] [Indexed: 10/24/2023] Open
Abstract
Purpose The imaging diagnosis of fracture-related infection is often challenging. The aim of this study was to evaluate the value of 18F-FDG PET/CT for the diagnosis of fracture-related infection (FRI) with internal fixation after orthopedic surgery in lower extremities. Methods A total of 254 consecutive patients who underwent 18F-FDG PET/CT scans with suspected FRI with internal fixation in lower extremities were retrospectively investigated 18F-FDG PET/CT images were semiquantitatively evaluated with multiple metabolic parameters. Additionally, morphological information of the inguinal draining lymph nodes (DLN) with the highest SUV value was also collected and analyzed. Results Patients were divided into two groups according to final diagnosis: the infected (N=197) and the non-infected group (N=57). The differences in the inguinal DLN-related parameters, including the long diameter, short diameter, maximum cross-sectional area, maximum standardized uptake value (SUVmax), metabolic volume (MV) 60%, MV70%, MV80%, total lesional glycolysis (TLG) 60%, TLG70%, TLG80%, and the infection suspected area related parameters, including SUVmax, MV25%, MV30%, MV35%, MV40%, MV50%, and TLG70%, between the two groups were statistically significant. We then compared the highest area under the curves (AUCs) among the morphological parameters of DLN, metabolic parameters of DLN, and metabolic parameters of the suspected infection area. The result demonstrated that SUVmax of the inguinal DLN showed the best diagnostic performance with an AUC of 0.939 (P<0.05). Conclusion Semiquantitative analysis (especially SUVmax) of the inguinal DLN in 18F-FDG PET/CT images could be a promising method for the diagnosis of suspected FRI with internal fixation after orthopedic surgery in lower extremities.
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Affiliation(s)
- Yanbing Wang
- Department of Nuclear Medicine, Rizhao People’s Hospital, Rizhao, Shandong, China
- Department of Nuclear Medicine, Shanghai Sixth People’s Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Zhenkui Sun
- Department of Nuclear Medicine, Shanghai Sixth People’s Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China
- Bone Nonunion and Bone Infection Multidisciplinary Team (MDT), Shanghai Sixth People’s Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Xiao Liang
- Department of Radiology, Rizhao People’s Hospital, Rizhao, Shandong, China
| | - Chentian Shen
- Department of Nuclear Medicine, Shanghai Sixth People’s Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China
- Bone Nonunion and Bone Infection Multidisciplinary Team (MDT), Shanghai Sixth People’s Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China
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Ren Z, Cai W, Lu Y, Lu Y, Wu H, Cheng P, Xu Z, Han P. Debridement-Reconstruction-Docking Management System Versus Ilizarov Technique for Lower-Extremity Osteomyelitis. J Bone Joint Surg Am 2023; 105:1527-1536. [PMID: 37603599 DOI: 10.2106/jbjs.23.00030] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 08/23/2023]
Abstract
BACKGROUND Osteomyelitis causes marked disability and is one of the most challenging diseases for orthopaedists to treat because of the considerable rate of infection recurrence. In this study, we proposed and assessed the debridement-reconstruction-docking (DRD) system for the treatment of lower-extremity osteomyelitis. This procedure comprises 3 surgical stages and 2 preoperative assessments; namely, pre-debridement assessment, debridement, pre-reconstruction assessment, reconstruction, and docking-site management. We evaluated the use of the DRD system compared with the Ilizarov technique, which is defined as a 1-stage debridement, osteotomy, and bone transport. METHODS This retrospective cohort included 289 patients who underwent either DRD or the Ilizarov technique for the treatment of lower-extremity osteomyelitis at a single institution between January 2013 and February 2021 and who met the eligibility criteria. The primary outcome was the rate of infection recurrence. Secondary outcomes included the external fixator index (EFI), refracture rate, and the Paley classification for osseous and functional results. An inverse-probability-weighted regression adjustment model was utilized to estimate the effect of the DRD system and Ilizarov technique on the treatment of lower-extremity osteomyelitis. RESULTS A total of 131 and 158 patients underwent DRD or the Ilizarov technique, respectively. The inverse-probability-weighted regression adjustment model suggested that DRD was associated with a significant reduction in infection recurrence (risk ratio [RR], 0.26; 95% confidence interval [CI], 0.13 to 0.50; p < 0.001) and EFI (-6.9 days/cm, 95% CI; -8.3 to -5.5; p < 0.001). Patients in the DRD group had better Paley functional results than those in the Ilizarov group (ridit score, 0.55 versus 0.45; p < 0.001). There was no significant difference between the 2 groups in the rate of refracture (RR, 0.87; 95% CI, 0.42 to 1.79; p = 0.71) and Paley osseous results (ridit score, 0.51 versus 0.49; p = 0.39). CONCLUSIONS In this balanced retrospective cohort of patients with lower-extremity osteomyelitis, the use of the DRD system was associated with a reduced rate of infection recurrence, a lower EFI, and better Paley functional results compared with the use of the Ilizarov technique. LEVEL OF EVIDENCE Therapeutic Level III . See Instructions for Authors for a complete description of levels of evidence.
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Affiliation(s)
- Zun Ren
- Department of Orthopedics, Shanghai Sixth People's Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, People's Republic of China
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Lapa C, Rischpler C, Bundschuh RA, Dierks A, Lang S, Wassilew G, Alt V. Value of [18F]FDG PET/CT in Diagnosis and Management of Spondylodiscitis. ZEITSCHRIFT FUR ORTHOPADIE UND UNFALLCHIRURGIE 2023; 161:544-551. [PMID: 37769687 DOI: 10.1055/a-2075-8873] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/03/2023]
Abstract
Vertebral osteomyelitis is the third most common form of osteomyelitis in patients over 50 years of age.Whereas prompt (pathogen-directed) therapy is crucially associated with better outcomes, the heterogeneous clinical presentation of disease with unspecific symptoms often delays adequate treatment initiation. Diagnosis requires a careful investigation of medical history, clinical findings and diagnostic imaging, including magnetic resonance imaging and nuclear medicine techniques.Due to its high sensitivity, [18F]FDG PET/CT is becoming increasingly important in diagnosis and management of spondylodiscitis, especially in the postoperative setting with presence of spinal hardware or other implantable devices in which MRI is limited.
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Affiliation(s)
- Constantin Lapa
- Nuclear Medicine, Faculty of Medicine, University of Augsburg, Augsburg, Germany
- Deutsche Gesellschaft für Nuklearmedizin (DGN), Berlin, Germany
| | - Christoph Rischpler
- Department of Nuclear Medicine, University Hospital Essen, Essen, Germany
- Department of Nuclear Medicine, Klinikum Stuttgart, Stuttgart, Germany
| | | | - Alexander Dierks
- Nuclear Medicine, Faculty of Medicine, University of Augsburg, Augsburg, Germany
| | - Sigmund Lang
- Department of Trauma Surgery, University Medical Centre Regensburg, Regensburg, Germany
| | - Georgi Wassilew
- Clinic for Orthopedics and Orthopedic Surgery, University Medicine Greifswald, Greifswald, Germany
| | - Volker Alt
- Department of Trauma Surgery, University Medical Centre Regensburg, Regensburg, Germany
- Sektion Muskuloskelettale Infektionen der Deutschen Gesellschaft für Orthopädie und Unfallchirurgie (DGOU), Berlin, Germany
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Miller LG, Flores EA, Launer B, Lee P, Kalkat P, Derrah K, Agrawal S, Schwartz M, Steele G, Kim T, Kuvhenguhwa MS. Safety and tolerability of tedizolid as oral treatment for bone and joint infections. Microbiol Spectr 2023; 11:e0128223. [PMID: 37750695 PMCID: PMC10581034 DOI: 10.1128/spectrum.01282-23] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2023] [Accepted: 08/07/2023] [Indexed: 09/27/2023] Open
Abstract
Bone and joint infections (BJIs) are common infections increasingly managed with oral therapy. However, there are limited safe oral options for many Gram-positive pathogens. In animal studies and short-term human use, tedizolid lacks the hematologic and neurologic toxicity of the other available oxazolidinone, linezolid. However, there are limited prospective safety data. We conducted an open-label, non-comparative trial of oral tedizolid for BJI treatment. Primary outcomes were safety and cure rate. Eligible patients had a BJI caused by documented or suspected Gram-positive pathogen, required 4-12 weeks of therapy, and did not have myelosuppression or peripheral/optic neuropathy. Subjects underwent weekly evaluation for cytopenias and neuropathy. We enrolled 44 subjects; five were lost to follow-up. Two subjects did not complete planned treatment because of rash (n = 1) and urgent surgery (n = 1). Of 37 patients with evaluable outcomes, 17 (46%) had hardware-associated infection, 13 (35%) had osteomyelitis, 5 (14%) had prosthetic joint infection, and 2 (5%) had other BJIs. Median (mean, range) treatment duration was 12 (10.1, 4-12) weeks. There were no cases of cytopenias or peripheral or optic neuropathy. Treatment cure occurred in 13 (35%); 19 (51%) required antibiotic continuation after 12 weeks of tedizolid related to retained hardware at the BJI site, and failure occurred in four (11%), two unlikely, one possibly, and one probably due to tedizolid. We found that oral tedizolid was well tolerated for prolonged BJI treatment without significant toxicity. Clinical failure rate was similar to that of other published BJI investigations. (This study has been registered at Clinicaltrials.gov under identifier NCT03009045.) IMPORTANCE Bone and joint infections are common infections with limited effective and safe oral options for Gram-positive infections. The largest prospective clinical trial of tedizolid therapy for bone and joint infections enrolled 44 patients and tested each in person weekly with detailed safety monitoring including tests for leukopenia, anemia, thrombocytopenia, peripheral neuropathy, and optic neuropathy for up to 12 weeks. Findings demonstrated tedizolid was generally well tolerated and there were no incident cases of cytopenias or neuropathy. Cure rates were similar to that in other bone and joint infection studies. In summary, oral tedizolid appears to be a well-tolerated oral option for Gram-positive bone and joint infections.
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Affiliation(s)
- Loren G. Miller
- Lundquist Institute for Biomedical Research at Harbor-UCLA Medical Center, Torrance, California, USA
- Lundquist David Geffen School of Medicine at UCLA, Los Angeles, California, USA
| | - Evelyn A. Flores
- Lundquist Institute for Biomedical Research at Harbor-UCLA Medical Center, Torrance, California, USA
| | - Bryn Launer
- Lundquist Institute for Biomedical Research at Harbor-UCLA Medical Center, Torrance, California, USA
| | - Pamela Lee
- Lundquist Institute for Biomedical Research at Harbor-UCLA Medical Center, Torrance, California, USA
| | - Praneet Kalkat
- Lundquist Institute for Biomedical Research at Harbor-UCLA Medical Center, Torrance, California, USA
| | - Kelli Derrah
- University of California Davis Medical Center, Sacramento, California, USA
| | - Shalini Agrawal
- Lundquist Institute for Biomedical Research at Harbor-UCLA Medical Center, Torrance, California, USA
| | - Matthew Schwartz
- Lundquist Institute for Biomedical Research at Harbor-UCLA Medical Center, Torrance, California, USA
| | - Grant Steele
- Harvard Medical School, Boston, Massachusetts, USA
| | - Tae Kim
- Lundquist Institute for Biomedical Research at Harbor-UCLA Medical Center, Torrance, California, USA
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Archer H, Ashikyan O, Pezeshk P, Guirguis M, Gowda P, Hoang D, Xi Y, Chhabra A. Predictive Value of Radiographic and Magnetic Resonance Imaging Characteristics on Patient Outcomes in Confirmed Acute Osteomyelitis of the Extremities. J Comput Assist Tomogr 2023; 47:759-765. [PMID: 37707406 DOI: 10.1097/rct.0000000000001483] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
OBJECTIVE The aim of this study was to determine whether imaging characteristics on plain radiography, magnetic resonance imaging (MRI), and diffusion-weighted imaging are predictive of patient outcomes in cases of confirmed osteomyelitis (OM). MATERIALS AND METHODS In this cross-sectional study, 3 experienced musculoskeletal radiologists evaluated pathologically proven cases of acute extremity OM and recorded imaging characteristics on plain radiographs, MRI, and diffusion-weighted imaging. These characteristics were then compared with the patient outcomes after a 3-year follow-up using length of stay, amputation-free survival, readmission-free survival, and overall survival using multivariate Cox regression analysis. Hazard ratio and corresponding 95% confidence intervals are reported. False discovery rate-adjusted P values were reported. RESULTS For the 75 consecutive cases of OM in this study, multivariate Cox regression analysis adjusting for sex, race, age, body mass index, erythrocyte sedimentation rate, C-reactive protein, and white blood cell count showed no correlation among any of the recorded characteristics on imaging and patient outcomes. Despite the high sensitivity and specificity of MRI for diagnosing OM, there was no correlation between MRI characteristics and patient outcomes. Furthermore, patients with coexistent abscess of the soft tissue or bone with OM had comparable outcomes using the previously mentioned metrics of length of stay, amputation-free survival, readmission-free survival, and overall survival. CONCLUSION Neither radiography nor MRI features predict patient outcomes in extremity OM.
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