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Klontzas ME, Vassalou EE, Spanakis K, Alpantaki K, Karantanas AH. Musculoskeletal Infection: The Great Mimickers on Imaging. J Clin Med 2024; 13:5424. [PMID: 39336911 PMCID: PMC11432558 DOI: 10.3390/jcm13185424] [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: 08/27/2024] [Revised: 09/09/2024] [Accepted: 09/10/2024] [Indexed: 09/30/2024] Open
Abstract
A series of conditions can mimic musculoskeletal infections on imaging, complicating their diagnosis and affecting the treatment. Depending on the anatomical location, different conditions can manifest with clinical and imaging findings that mimic infections. Herein we present a wide spectrum of the musculoskeletal disorders of the axial skeleton, long bones, peripheral joints, and soft tissue that may manifest as infectious processes, and we focus on the potential mimics of osteomyelitis, septic arthritis, and infectious spondylodiscitis that are common in clinical practice. We present the typical imaging characteristics of each musculoskeletal infection, followed by mimicking conditions.
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Affiliation(s)
- Michail E. Klontzas
- Department of Medical Imaging, University Hospital of Heraklion, 71110 Crete, Greece
- Computational BioMedicine Laboratory, Institute of Computer Science, Foundation for Research and Technology-Hellas (FORTH), 70013 Heraklion, Greece
- Department of Radiology, School of Medicine, University of Crete, 71003 Heraklion, Greece
| | - Evangelia E. Vassalou
- Department of Medical Imaging, University Hospital of Heraklion, 71110 Crete, Greece
| | - Konstantinos Spanakis
- Department of Medical Imaging, University Hospital of Heraklion, 71110 Crete, Greece
| | - Kalliopi Alpantaki
- Department of Orthopaedics and Trauma Surgery, “Venizeleion” General Hospital of Heraklion, 71409 Crete, Greece
| | - Apostolos H. Karantanas
- Department of Medical Imaging, University Hospital of Heraklion, 71110 Crete, Greece
- Computational BioMedicine Laboratory, Institute of Computer Science, Foundation for Research and Technology-Hellas (FORTH), 70013 Heraklion, Greece
- Department of Radiology, School of Medicine, University of Crete, 71003 Heraklion, Greece
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Baran AI, Binici I, Arslan Y, Hakseven Karaduman Z, Ilter S, Tarcan T, Unal M. Hematologic Inflammation Indices for Differentiating between Brucella, Pyogenic, and Tuberculous Spondylodiscitis. Biomedicines 2024; 12:2059. [PMID: 39335572 PMCID: PMC11428848 DOI: 10.3390/biomedicines12092059] [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: 08/07/2024] [Revised: 09/06/2024] [Accepted: 09/08/2024] [Indexed: 09/30/2024] Open
Abstract
Infectious spondylodiscitis is a life-threatening disease and has some challenges in terms of diagnostic, differentiative, and therapeutic processes. Therefore, rapid and effective management of infectious spondylodiscitis is necessary. Hematological inflammation indices (HIIs) such as the neutrophil/lymphocyte ratio and aggregate index of systemic inflammation are derived from blood cells and used as diagnostic, prognostic, predictive, and treatment monitoring indicators. This study aimed to evaluate HIIs for discriminating between infectious spondylodiscitis pathogens. This retrospective comparative study included 116 patients with infectious spondylodiscitis. According to the responsible infectious pathogens, three types of infectious spondylodiscitis were defined: Brucella (n = 51), pyogenic (n = 43), and tuberculous (n = 22). The HIIs were derived from baseline complete blood counts. The three types of infectious spondylodiscitis were statistically compared for the HII scores. We found that the Brucella group had significantly lower HII scores than the pyogenic group (p < 0.05). Also, the Brucella group had significantly lower HII scores than the tuberculous group (p < 0.05). However, no significant differences were found between the pyogenic and tuberculous groups regarding HIIs (p > 0.05). In conclusion, the HIIs may be considered in the differentiation between Brucella spondylodiscitis and other types of infectious spondylodiscitis.
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Affiliation(s)
- Ali Irfan Baran
- Department of Infectious Diseases and Clinical Microbiology, Faculty of Medicine, Van Yuzuncu Yıl University, Van 65080, Turkey
| | - Irfan Binici
- Department of Infectious Diseases and Clinical Microbiology, Faculty of Medicine, Van Yuzuncu Yıl University, Van 65080, Turkey
| | - Yusuf Arslan
- Department of Infectious Diseases and Clinical Microbiology, Batman Training and Research Hospital, Batman 72000, Turkey
| | - Zekiye Hakseven Karaduman
- Department of Infectious Diseases and Clinical Microbiology, Van Training and Research Hospital, Van 65300, Turkey
| | - Server Ilter
- Department of Physical Therapy and Rehabilitation, Faculty of Medicine, Van Yuzuncu Yıl University, Van 65090, Turkey
| | - Tayyar Tarcan
- Department of Infectious Diseases and Clinical Microbiology, Tatvan State Hosptial, Bitlis 13000, Turkey
| | - Murat Unal
- Department of Infectious Diseases and Clinical Microbiology, Nusaybin State Hosptial, Mardin 47300, Turkey
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Chen J, Guo X, Liu X, Sheng Y, Li F, Li H, Cui Y, Wang H, Wei L, Li M, Liu J, Zeng Q. Differentiation of tuberculous and brucellar spondylitis using conventional MRI-based deep learning algorithms. Eur J Radiol 2024; 178:111655. [PMID: 39079324 DOI: 10.1016/j.ejrad.2024.111655] [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: 05/08/2024] [Revised: 07/22/2024] [Accepted: 07/25/2024] [Indexed: 08/18/2024]
Abstract
PURPOSE To investigate the feasibility of deep learning (DL) based on conventional MRI to differentiate tuberculous spondylitis (TS) from brucellar spondylitis (BS). METHODS A total of 383 patients with TS (n = 182) or BS (n = 201) were enrolled from April 2013 to May 2023 and randomly divided into training (n = 307) and validation (n = 76) sets. Sagittal T1WI, T2WI, and fat-suppressed (FS) T2WI images were used to construct single-sequence DL models and combined models based on VGG19, VGG16, ResNet18, and DenseNet121 network. The area under the receiver operating characteristic curve (AUC) was used to assess the classification performance. The AUC of DL models was compared with that of two radiologists with different levels of experience. RESULTS The AUCs based on VGG19, ResNet18, VGG16, and DenseNet121 ranged from 0.885 to 0.973, 0.873 to 0.944, 0.882 to 0.929, and 0.801 to 0.933, respectively, and VGG19 models performed better. The diagnostic efficiency of combined models outperformed single-sequence DL models. The combined model of T1WI, T2WI, and FS T2WI based on VGG19 achieved optimal performance, with an AUC of 0.973. In addition, the performance of all combined models based on T1WI, T2WI, and FS T2WI was better than that of two radiologists (P<0.05). CONCLUSION The DL models have potential guiding value in the diagnosis of TS and BS based on conventional MRI and provide a certain reference for clinical work.
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Affiliation(s)
- Jinming Chen
- Department of Radiology, Shandong Provincial Qianfoshan Hospital, Shandong University, Jinan, Shandong, China
| | - Xiaowen Guo
- Department of Radiology, Shandong Public Health Clinical Center, Shandong University, Jinan, Shandong, China
| | - Xiaoming Liu
- Beijing United Imaging Research Institute of Intelligent Imaging, Yongteng North Road, Haidian District, Beijing, China
| | - Yurui Sheng
- Department of Radiology, The First Affiliated Hospital of Shandong First Medical University & Shandong Provincial Qianfoshan Hospital, Jinan, Shandong, China
| | - Fuyan Li
- Department of Radiology, Shandong Provincial Hospital affiliated to Shandong First Medical University, Jinan, China
| | - Hongxia Li
- Department of Radiology, The Second Hospital of Shandong University, Jinan, China
| | - Yi Cui
- Department of Radiology, Qilu Hospital of Shandong University, Jinan, China
| | - Huaizhen Wang
- Department of Radiology, The First College of Clinical Medicine, Shandong University of Traditional Chinese Medicine, Jinan, Shandong, China
| | - Lingzhen Wei
- Department of Radiology, The First Affiliated Hospital of Shandong First Medical University & Shandong Provincial Qianfoshan Hospital, Jinan, Shandong, China; School of Clinical Medicine, Jining Medical University, Jining, Shandong, China
| | - Meilin Li
- Department of Radiology, The First Affiliated Hospital of Shandong First Medical University & Shandong Provincial Qianfoshan Hospital, Jinan, Shandong, China
| | - Jiahao Liu
- Department of Radiology, The First Affiliated Hospital of Shandong First Medical University & Shandong Provincial Qianfoshan Hospital, Jinan, Shandong, China
| | - Qingshi Zeng
- Department of Radiology, Shandong Provincial Qianfoshan Hospital, Shandong University, Jinan, Shandong, China; Department of Radiology, The First Affiliated Hospital of Shandong First Medical University & Shandong Provincial Qianfoshan Hospital, Jinan, Shandong, China.
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Donoghue EM, Lawhon SD, Kerwin SC, Jeffery ND. Causal Agent Investigation and Treatment of Dogs Diagnosed with Discospondylitis in a Brucella canis Endemic Region. Vet Sci 2024; 11:279. [PMID: 38922026 PMCID: PMC11209358 DOI: 10.3390/vetsci11060279] [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: 03/08/2024] [Revised: 05/31/2024] [Accepted: 06/13/2024] [Indexed: 06/27/2024] Open
Abstract
Discospondylitis is a well-recognized disease in dogs, but the relative prevalence of causal infectious agents and efficiency of relevant diagnostic tests are not well-established. Medical record review identified 117 dogs diagnosed with discospondylitis in our clinic over a 5-year period. In 32 dogs, discospondylitis was diagnosed as an incidental imaging finding; 24 of these dogs had concomitant neoplasia. A likely causal infection was identified in 45 of the remaining 85 dogs in which blood and urine cultures, serology for Brucella spp., and galactomannan fungal antigen testing were recommended. Ten dogs were diagnosed with Brucella canis, and ten were diagnosed with suspected fungal infection. Brucella suis serology was negative in all 35 dogs that were tested. Blood cultures were positive in 28 of 71 (39%) tested dogs, and urine culture was positive in 12 of 79 (15%). Cultures were positive from the lesion site of four of eight dogs that underwent surgery and one of the five dogs that underwent image-guided lesion sample collection. Subluxation secondary to discospondylitis was stabilized with metallic implants in four dogs. A similar proportion of known satisfactory treatment outcomes at last follow-up were recorded in dogs that had suspected fungal disease, other bacterial infections, or were Brucella-positive and in those dogs with imaging diagnosis only, although some individuals continued to receive anti-microbial agents or showed recurrent signs. These data support the value of blood culture in discospondylitis and suggest a relatively high prevalence of infection with Brucella spp. and suspected fungal infection.
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Affiliation(s)
- Eileen M. Donoghue
- Department of Small Animal Clinical Sciences, Texas A&M University, College Station, TX 77843, USA; (E.M.D.); (S.C.K.)
| | - Sara D. Lawhon
- Department of Veterinary Pathobiology, Texas A&M University, College Station, TX 77843, USA;
| | - Sharon C. Kerwin
- Department of Small Animal Clinical Sciences, Texas A&M University, College Station, TX 77843, USA; (E.M.D.); (S.C.K.)
| | - Nick D. Jeffery
- Department of Small Animal Clinical Sciences, Texas A&M University, College Station, TX 77843, USA; (E.M.D.); (S.C.K.)
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Madelar RTR, Ito M. The Need for Comprehensive Medical Management in Pyogenic Spondylodiscitis: A Review Article. Spine Surg Relat Res 2024; 8:243-252. [PMID: 38868783 PMCID: PMC11165497 DOI: 10.22603/ssrr.2023-0155] [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: 07/05/2023] [Accepted: 09/21/2023] [Indexed: 06/14/2024] Open
Abstract
The incidence of spontaneous or primary spondylodiscitis has been increasing over the years, affecting the aging population with multiple comorbidities. Several conditions influencing treatment outcomes stand out, such as diabetes mellitus, renal insufficiency, cardiovascular and respiratory dysfunction, and malnutrition. Due to these, the question arises regarding properly managing their current conditions and pre-existing disease states. Treatment plans must consider all concomitant comorbidities rather than just the infectious process. This can be done with the help of multidisciplinary teams to provide comprehensive care for patients with pyogenic spondylodiscitis. To date, there is no article regarding comprehensive medicine for spontaneous pyogenic spondylodiscitis; hence, this paper reviews the evidence available in current literature, recognizes knowledge gaps, and suggests comprehensive care for treating patients with spinal infections. Pre-requisites for implementing multidisciplinary teams include leadership, administrative support, and team dynamics. This group comprises an appointed leader, coordinator, and different subspecialists, such as orthopedic surgeons, infectious disease specialists, internists, rehabilitation doctors, psychiatrists, microbiologists, radiologists, nutritionists, pharmacologists, nurses, and orthotists working together with mutual trust and respect. Employing collaborative teams allows faster time for diagnosis and improves clinical outcomes, better quality of life, and patient satisfaction. Forefront communication is clear and open between all team members to provide holistic patient care. With these in mind, the need for employing multidisciplinary teams and the feasibility of its implementation emerges, showing a promising and logical path toward providing comprehensive care in managing multimorbid patients with pyogenic spondylodiscitis.
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Affiliation(s)
- Rina Therese R Madelar
- Department of Orthopedics, The Medical City, Pasig, Philippines
- Department of Orthopedic Surgery, Hokkaido Medical Center, Sapporo, Japan
| | - Manabu Ito
- Department of Orthopedic Surgery, Hokkaido Medical Center, Sapporo, Japan
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Crombé A, Fadli D, Clinca R, Reverchon G, Cevolani L, Girolami M, Hauger O, Matcuk GR, Spinnato P. Imaging of Spondylodiscitis: A Comprehensive Updated Review-Multimodality Imaging Findings, Differential Diagnosis, and Specific Microorganisms Detection. Microorganisms 2024; 12:893. [PMID: 38792723 PMCID: PMC11123694 DOI: 10.3390/microorganisms12050893] [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: 01/30/2024] [Revised: 04/11/2024] [Accepted: 04/25/2024] [Indexed: 05/26/2024] Open
Abstract
Spondylodiscitis is defined by infectious conditions involving the vertebral column. The incidence of the disease has constantly increased over the last decades. Imaging plays a key role in each phase of the disease. Indeed, radiological tools are fundamental in (i) the initial diagnostic recognition of spondylodiscitis, (ii) the differentiation against inflammatory, degenerative, or calcific etiologies, (iii) the disease staging, as well as (iv) to provide clues to orient towards the microorganisms involved. This latter aim can be achieved with a mini-invasive procedure (e.g., CT-guided biopsy) or can be non-invasively supposed by the analysis of the CT, positron emission tomography (PET) CT, or MRI features displayed. Hence, this comprehensive review aims to summarize all the multimodality imaging features of spondylodiscitis. This, with the goal of serving as a reference for Physicians (infectious disease specialists, spine surgeons, radiologists) involved in the care of these patients. Nonetheless, this review article may offer starting points for future research articles.
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Affiliation(s)
- Amandine Crombé
- Department of Musculoskeletal Imaging, Pellegrin University Hospital, Bordeaux University, Place Amélie Raba-Léon, F-33000 Bordeaux, France
| | - David Fadli
- Department of Musculoskeletal Imaging, Pellegrin University Hospital, Bordeaux University, Place Amélie Raba-Léon, F-33000 Bordeaux, France
| | - Roberta Clinca
- Department of Radiology, IRCCS Policlinico di Sant’Orsola, 40138 Bologna, Italy
| | - Giorgio Reverchon
- Diagnostic and Interventional Radiology, IRCCS Istituto Ortopedico Rizzoli, 40136 Bologna, Italy
| | - Luca Cevolani
- Orthopedic Oncology Unit, IRCCS Istituto Ortopedico Rizzoli, 40136 Bologna, Italy
| | - Marco Girolami
- Department of Spine Surgery Unit, IRCCS Istituto Ortopedico Rizzoli, 40136 Bologna, Italy
| | - Olivier Hauger
- Department of Musculoskeletal Imaging, Pellegrin University Hospital, Bordeaux University, Place Amélie Raba-Léon, F-33000 Bordeaux, France
| | - George R. Matcuk
- Department of Imaging, Cedars-Sinai Medical Center, Los Angeles, CA 90048, USA
| | - Paolo Spinnato
- Diagnostic and Interventional Radiology, IRCCS Istituto Ortopedico Rizzoli, 40136 Bologna, Italy
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7
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Ling-Shan C, Zheng-Qiu Z, Jing L, Rui Z, Li-Fang L, Zhi-Tao W, Zhong-Qiu W. Magnetic resonance imaging features for differentiating tuberculous from pyogenic spondylitis: a meta-analysis. Skeletal Radiol 2024; 53:697-707. [PMID: 37843585 DOI: 10.1007/s00256-023-04459-5] [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: 07/09/2023] [Revised: 09/04/2023] [Accepted: 09/15/2023] [Indexed: 10/17/2023]
Abstract
OBJECTIVE To perform a meta-analysis comparing the MRI features of tuberculous and pyogenic spondylitis, using histopathological results and/or blood culture as the standard reference. MATERIALS AND METHODS PubMed, Embase, Web of Science, and Cochrane Library were searched for English-language studies on the MRI features of tuberculous and pyogenic spondylitis published between January 2010 and February 2023. Risk for bias and concerns regarding applicability were assessed using the Quality Assessment of Diagnostic Accuracy Studies-2 tool. Pooled MRI features' proportions were calculated using a bivariate random-effects model. RESULTS Thirty-two studies met the inclusion criteria: 21 for tuberculous spondylitis, three for pyogenic spondylitis, and eight for both. Of the nine informative MRI features comparing tuberculous spondylitis to pyogenic spondylitis, involvement of ≥ 2 vertebral bodies (92% vs. 88%, P = .004), epidural extension (77% vs. 25%, P < .001), paravertebral collection (91% vs. 84%, P < .001), subligamentous spread (93% vs. 24%, P < .001), thin and regular abscess wall (94% vs. 18%, P < .001), vertebral collapse (68% vs. 24%, P < .001), and kyphosis (39% vs. 3%, P < .01) were more suggestive of tuberculous spondylitis, while disc signal change (82% vs. 95%, P < .001) and disc height loss (22% vs. 59%, P < .001) were more suggestive of pyogenic spondylitis. CONCLUSION Involvement of ≥ 2 vertebral vertebral bodies, soft tissue attribution, thin and regular abscess wall, vertebral collapse, and kyphosis were MRI features more common in tuberculous spondylitis, while disc signal change and height loss were more common in pyogenic spondylitis.
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Affiliation(s)
- Chen Ling-Shan
- Department of Radiology, Affiliated Hospital of Nanjing University of Chinese Medicine, Jiangsu Province Hospital of Chinese Medicine, No. 155, Hanzhong Road, Nanjing, 210029, Jiangsu Province, China
| | - Zhu Zheng-Qiu
- Department of Ultrasound, Affiliated Hospital of Nanjing University of Chinese Medicine, Jiangsu Province Hospital of Chinese Medicine, Nanjing, 210029, China
| | - Li Jing
- Department of Radiology, Affiliated Hospital of Nanjing University of Chinese Medicine, Jiangsu Province Hospital of Chinese Medicine, No. 155, Hanzhong Road, Nanjing, 210029, Jiangsu Province, China
| | - Zhao Rui
- Department of Radiology, Affiliated Hospital of Nanjing University of Chinese Medicine, Jiangsu Province Hospital of Chinese Medicine, No. 155, Hanzhong Road, Nanjing, 210029, Jiangsu Province, China
| | - Ling Li-Fang
- Department of Radiology, Affiliated Hospital of Nanjing University of Chinese Medicine, Jiangsu Province Hospital of Chinese Medicine, No. 155, Hanzhong Road, Nanjing, 210029, Jiangsu Province, China
| | - Wang Zhi-Tao
- Department of Radiology, Affiliated Hospital of Nanjing University of Chinese Medicine, Jiangsu Province Hospital of Chinese Medicine, No. 155, Hanzhong Road, Nanjing, 210029, Jiangsu Province, China
| | - Wang Zhong-Qiu
- Department of Radiology, Affiliated Hospital of Nanjing University of Chinese Medicine, Jiangsu Province Hospital of Chinese Medicine, No. 155, Hanzhong Road, Nanjing, 210029, Jiangsu Province, China.
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8
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George AJ, Santhanagopal S, Mohan MM, Lal JV, Basappa M, Thomas JC, Jeevo J. Spondylodiscitis: A Diagnostic and Management Dilemma. Cureus 2024; 16:e58284. [PMID: 38752024 PMCID: PMC11094521 DOI: 10.7759/cureus.58284] [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: 04/14/2024] [Indexed: 05/18/2024] Open
Abstract
Aims Spondylodiscitis (SpD), a debilitating infective condition of the spine, mandates early diagnosis and institution of appropriate therapy, for which accurate microbiology and histological evaluation of the affected tissue is vital. The objectives of the study were to assess the correlation between clinical and magnetic resonance imaging (MRI) findings with histopathology (HPE) and microbiology (MB) in clinically diagnosed spondylodiscitis. Settings and design This was a prospective study of 34 consecutive patients reporting at the outpatient department of a tertiary hospital with clinical and imaging features of SpD, who underwent image-guided/surgical biopsy of lesions. Methods and material The provisional diagnosis of SpD in all patients was made on the combined basis of clinical profile and MRI Spine findings. Tissue samples in all patients, obtained by either open surgery or CT-guided biopsy, were subjected to HPE and MB analysis. Results SpD has a bimodal age distribution with the majority of patients being males in the fourth to fifth decades. Only raised erythrocyte sedimentation rate (ESR) was consistently seen amongst laboratory parameters, with leucocytosis being added pointer towards pyogenic etiology. MRI remained the imaging modality of choice for SpD but was not dependable for etiologic differentiation. On HPE and MB evaluations, 24 patients (71%) had findings consistent with infective SpD, while combined results augmented etiologic confirmation for 28 patients (82.4%). HPE was more sensitive than traditional MB methods to determine etiology in SpD, but the addition of the GeneXpert (Cepheid, Sunnyvale, California, United States) technique improved the MB positivity rate, especially in patients with tubercular SpD. Six patients (17.6%) with both negative HPE and MB results were categorized as 'Non-specific' SpD. Conclusions SpD poses a challenge to determine the etiology for the administration of specific antimicrobial therapy. A stratified standard institutional approach needs adoption to systematically evaluate SpD patients by having a high index of clinical suspicion, early imaging, followed by tissue biopsy for HPE and MB. Despite efforts to reach a diagnosis, a subset of patients without conclusive etiologic agent identification would remain as 'Non-specific', needing empiric antibiotic treatment based on clinico-radiologic profile.
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Affiliation(s)
- Akhshay J George
- Orthopaedics, St. Johns Medical College Hospital, Bangalore, IND
| | | | - Madan M Mohan
- Orthopaedics, St. Johns Medical College Hospital, Bangalore, IND
| | - Jaya V Lal
- Orthopaedics, St. Johns Medical College Hospital, Bangalore, IND
| | | | - Johann C Thomas
- Orthopaedics, St. Johns Medical College Hospital, Bangalore, IND
| | - Jerin Jeevo
- Orthopaedics, St. Johns Medical College Hospital, Bangalore, IND
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9
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Zhang C, Liu S. The advancement of MRI in differentiating Modic type I degenerative changes from early spinal infections. Br J Radiol 2023; 96:20230551. [PMID: 37786986 PMCID: PMC10646657 DOI: 10.1259/bjr.20230551] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2023] [Revised: 09/20/2023] [Accepted: 09/23/2023] [Indexed: 10/04/2023] Open
Abstract
MRI is the most sensitive and specific imaging method for the detection of advanced spinal infections. However, the differential diagnosis of early spinal infection and Modic Type I degenerative changes based on conventional MRI is difficult clinically, as they both may mimic each other by showing hypointensity on T1 weighted images and hyperintensity on T2 weighted spine MRI images. This review summarizes recent advancements in MRI, which may be useful in discriminating degenerative Modic Type I endplate changes from early spinal infection, and evaluates the diagnostic accuracy and limitations of MRI. We aim to provide indications for early differential diagnosis to help initiate appropriate treatment in a timely manner so that associated complications can be avoided.
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10
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Husseini JS, Huang AJ. Discitis-osteomyelitis: optimizing results of percutaneous sampling. Skeletal Radiol 2023; 52:1815-1823. [PMID: 35976405 DOI: 10.1007/s00256-022-04151-0] [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: 05/25/2022] [Revised: 08/04/2022] [Accepted: 08/05/2022] [Indexed: 02/02/2023]
Abstract
Vertebral discitis-osteomyelitis is an infection of the spine that involves the intervertebral disc and the adjacent vertebral body but may also extend into the paraspinal and epidural soft tissues. If blood cultures and other culture data fail to identify a causative microorganism, percutaneous sampling is indicated to help guide targeted antimicrobial therapy. Despite limited supporting evidence, withholding antimicrobial therapy for up to 2 weeks is recommended to maximize microbiological yield, although literature supporting this recommendation is limited. During the procedure, technical factors that may improve yield include targeting of paraspinal fluid collections or soft tissue abnormalities for sampling, acquiring multiple core samples if possible, and use of larger gauge needles when available. Repeat sampling may be indicated if initial percutaneous biopsy is negative but should be performed no sooner than 72 h after the initial percutaneous biopsy to ensure adequate time for culture results to return.
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Affiliation(s)
- Jad S Husseini
- Division of Musculoskeletal Imaging and Intervention, Department of Radiology, Massachusetts General Hospital, 55 Fruit Street Yawkey 6E, Boston, MA, 02114, USA.
| | - Ambrose J Huang
- Division of Musculoskeletal Imaging and Intervention, Department of Radiology, Massachusetts General Hospital, 55 Fruit Street Yawkey 6E, Boston, MA, 02114, USA
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11
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Mertens K, Vanhoenacker FM. Imaging of the Craniocervical Junction: A Pictorial Review. Semin Musculoskelet Radiol 2023; 27:499-511. [PMID: 37816358 DOI: 10.1055/s-0043-1772190] [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: 10/12/2023]
Abstract
The craniocervical junction (CCJ) is a complex anatomical structure comprising the occiput, the atlas, and the axis. The CCJ plays an important role in maintaining stability, providing protection, and supporting neurovascular structures. The CCJ can be affected by a wide range of congenital variants and traumatic, degenerative, inflammatory, and tumoral pathologies. This pictorial review the normal anatomy of the CCJ and presents the most common anatomical variants and pathologic conditions affecting the CCJ.
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Affiliation(s)
- Kris Mertens
- Department of Radiology, UZ Leuven, University of Leuven, Leuven, Belgium
- Department of Radiology, AZ Sint-Maarten, Mechelen, Belgium
| | - Filip M Vanhoenacker
- Department of Radiology, UZ Leuven, University of Leuven, Leuven, Belgium
- Department of Radiology, AZ Sint-Maarten, Mechelen, Belgium
- Department of Diagnostic Sciences, UZ Gent, Faculty of Medicine and Health Sciences, Ghent, Belgium
- Department of Radiology, UZ Antwerpen, University of Antwerp, Edegem, Belgium
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12
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Leowattana W, Leowattana P, Leowattana T. Tuberculosis of the spine. World J Orthop 2023; 14:275-293. [PMID: 37304201 PMCID: PMC10251269 DOI: 10.5312/wjo.v14.i5.275] [Citation(s) in RCA: 14] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/29/2022] [Revised: 02/24/2023] [Accepted: 04/12/2023] [Indexed: 05/18/2023] Open
Abstract
Pott's spine, commonly known as spinal tuberculosis (TB), is an extrapulmonary form of TB caused by Mycobacterium TB. Pott's paraplegia occurs when the spine is involved. Spinal TB is usually caused by the hematogenous spread of infection from a central focus, which can be in the lungs or another location. Spinal TB is distinguished by intervertebral disc involvement caused by the same segmental arterial supply, which can result in severe morbidity even after years of approved therapy. Neurological impairments and spine deformities are caused by progressive damage to the anterior vertebral body. The clinical, radiographic, microbiological, and histological data are used to make the diagnosis of spinal TB. In Pott's spine, combination multidrug antitubercular therapy is the basis of treatment. The recent appearance of multidrug-resistant/extremely drug-resistant TB and the growth of human immunodeficiency virus infection have presented significant challenges in the battle against TB infection. Patients who come with significant kyphosis or neurological impairments are the only ones who require surgical care. Debridement, fusion stabilization, and correction of spinal deformity are the cornerstones of surgical treatment. Clinical results for the treatment of spinal TB are generally quite good with adequate and prompt care.
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Affiliation(s)
- Wattana Leowattana
- Department of Clinical Tropical Medicine, Faculty of Tropical Medicine, Mahidol University, Rachatawee 10400, Bangkok, Thailand
| | - Pathomthep Leowattana
- Department of Clinical Tropical Medicine, Faculty of Tropical Medicine, Mahidol University, Rachatawee 10400, Bangkok, Thailand
| | - Tawithep Leowattana
- Department of Medicine, Faculty of Medicine, Srinakarinwirot University, Wattana 10110, Bangkok, Thailand
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Raghavan M, Palestro CJ. Imaging of Spondylodiscitis: An Update. Semin Nucl Med 2023; 53:152-166. [PMID: 36522190 DOI: 10.1053/j.semnuclmed.2022.11.005] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2022] [Accepted: 11/29/2022] [Indexed: 12/15/2022]
Abstract
Spondylodiscitis is an infection of the vertebral body and/or intervertebral disc, which can also involve the epidural space, posterior elements, and paraspinal soft tissues. Due to high morbidity and mortality, prompt diagnosis and treatment of spondylodiscitis is critical. However, diagnosis can be challenging due to nonspecific signs and symptoms. Magnetic resonance imaging with and without contrast is the imaging modality of choice due to high sensitivity and specificity. Intravenous administration of gadolinium contrast can better demonstrate the extent of soft tissue and bone abscesses. However, magnetic resonance imaging is less useful in the evaluation of treatment response. When magnetic resonance imaging cannot be performed or is not diagnostic, radionuclide imaging is a useful alternative. Although bone scintigraphy frequently is used as a screening test, false negative results can occur early in the course of the infection and in the elderly. This test is not useful for detecting the soft tissue infections that often accompany or mimic spondylodiscitis. Gallium-67 citrate improves the specificity of the bone scan, can detect infection earlier than the bone scan, may be more sensitive, especially in elderly patients, and identifies accompanying soft tissue infection. Performing SPECT and SPECT/CT improve accuracy. The 2-3 day delay between radiopharmaceutical administration, poor image quality, and relatively high patient radiation dose are significant disadvantages of gallium-67. Furthermore gallium-67 is no longer as readily available as it once was. 18F-FDG imaging is the radionuclide test of choice for spondylodiscitis. The procedure, completed in one day, is sensitive, has a high negative predictive value, and reliably differentiates degenerative from infectious vertebral body end-plate abnormalities. 18F-FDG has outperformed bone and gallium-67 imaging in comparative studies. 18F-FDG may be able to provide an objective means for monitoring response to treatment. The potential of other agents for diagnosing spondylodiscitis has been studied. Although indium-111biotin accurately diagnoses spondylodiscitis, this radiopharmaceutical has never been commercially available. Gallium-68 citrate and 99mTc-radiolabeled antimicrobial peptides have been investigated, but their role in the diagnosis of spondylodiscitis has not been established. Labeled leukocyte scintigraphy has no role in the diagnosis of spondylodiscitis.
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Affiliation(s)
- Meera Raghavan
- Division of Diagnostic Imaging, Banner MD Anderson Cancer Center, Gilbert, AZ.
| | - Christopher J Palestro
- Department of Radiology, Donald and Barbara Zucker School of Medicine at Hofstra/Northwell, Hempstead, NY
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14
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Differentiating Magnetic Resonance Images of Pyogenic Spondylitis and Spinal Modic Change Using a Convolutional Neural Network. Spine (Phila Pa 1976) 2023; 48:288-294. [PMID: 36692159 DOI: 10.1097/brs.0000000000004532] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/09/2022] [Accepted: 10/23/2022] [Indexed: 01/25/2023]
Abstract
STUDY DESIGN A retrospective analysis of magnetic resonance imaging (MRI). OBJECTIVE The study aimed to evaluate the performance of a convolutional neural network (CNN) to differentiate spinal pyogenic spondylitis from Modic change on MRI. We compared the performance of CNN to that of four clinicians. SUMMARY OF BACKGROUND DATA Discrimination between pyogenic spondylitis and spinal Modic change is crucial in clinical practice. CNN deep-learning approaches for medical imaging are being increasingly utilized. METHODS We retrospectively reviewed MRIs from pyogenic spondylitis and spinal Modic change patients. There were 50 patients per group. Sagittal T1-weighted (T1WI), sagittal T2-weighted (T2WI), and short TI inversion recovery (STIR) MRIs were used for CNN training and validation. The deep learning framework Tensorflow was used to construct the CNN architecture. To evaluate CNN performance, we plotted the receiver operating characteristic curve and calculated the area under the curve. We compared the accuracy, sensitivity, and specificity of CNN diagnosis to that of a radiologist, spine surgeon, and two orthopedic surgeons. RESULTS The CNN-based area under the curves of the receiver operating characteristic curve from the T1WI, T2WI, and STIR were 0.95, 0.94, and 0.95, respectively. The accuracy of the CNN was significantly greater than that of the four clinicians on T1WI and STIR (P<0.05), and better than a radiologist and one orthopedic surgeon on the T2WI (P<0.05). The sensitivity was significantly better than that of the four clincians on T1WI and STIR (P<0.05), and better than a radiologist and one orthopedic surgeon on the T2WI (P<0.05). The specificity was significantly better than one orthopedic surgeon on T1WI and T2WI (P<0.05) and better than both orthopedic surgeons on STIR (P<0.05). CONCLUSION We differentiated between Modic changes and pyogenic spondylitis using a CNN that interprets MRI. The performance of the CNN was comparable to, or better than, that of the four clinicians.
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Alay H, Çankaya BY. Tuberculous Spondylodiscitis with Epidural Spread. Rev Soc Bras Med Trop 2023; 56:S0037-86822023000100820. [PMID: 36995788 PMCID: PMC10042470 DOI: 10.1590/0037-8682-0617-2022] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2022] [Accepted: 02/03/2023] [Indexed: 03/29/2023] Open
Affiliation(s)
- Handan Alay
- Ataturk University, Faculty of Medicine, Department of Infectious Diseases and Clinical Microbiology, Erzurum, Turkey
| | - Bahar Yılmaz Çankaya
- Ataturk University, Faculty of Medicine, Department of Radiology, Erzurum, Turkey
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16
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Zhao J, Sun L, Zhou X, Huang S, Si H, Zhang D. Residual-atrous attention network for lumbosacral plexus segmentation with MR image. Comput Med Imaging Graph 2022; 100:102109. [DOI: 10.1016/j.compmedimag.2022.102109] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2022] [Revised: 07/12/2022] [Accepted: 07/28/2022] [Indexed: 10/15/2022]
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17
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Role of CT and MR imaging in the assessment of suspected spondylodiscitis and planning of needle biopsy. Radiol Med 2022; 127:1023-1031. [DOI: 10.1007/s11547-022-01523-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2021] [Accepted: 06/27/2022] [Indexed: 11/26/2022]
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18
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Sampath S, Basumani P, Kothandaraman A, Ramakrishnan R. Detection of Spinal Tuberculosis by F-18 FDG PET/CT as a Cause of Unusual Referred Pain in the Right Upper Quadrant of Abdomen. World J Nucl Med 2022; 21:69-72. [PMID: 35502283 PMCID: PMC9056119 DOI: 10.1055/s-0042-1746176] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022] Open
Abstract
AbstractTuberculous involvement of the spine (tuberculosis [TB] spine) can cause severe morbidity unless detected and treated early. Apart from the constitutional symptoms, it can present with back pain, kyphosis, gait abnormality, and paraplegia secondary to the bone or spinal cord involvement. There had been instances of TB spine presenting directly as abdominal pain due to psoas abscesses. Herein, we report a very rare clinical manifestation of TB spine as referred pain in the right upper abdominal quadrant due to right epidural phlegmon associated with T7 vertebra, detected by positron emission tomography.
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Affiliation(s)
- Santhosh Sampath
- Department of Nuclear Medicine, Dr. Rela Institute and Medical Centre, Chennai, Tamil Nadu, India
| | - Pandurangan Basumani
- Department of Gastroenterology, Dr. Rela Institute and Medical Centre, Chennai, Tamil Nadu, India
| | - Anand Kothandaraman
- Department of Gastroenterology, Dr. Rela Institute and Medical Centre, Chennai, Tamil Nadu, India
| | - Ravi Ramakrishnan
- Department of Gastroenterology, Dr. Rela Institute and Medical Centre, Chennai, Tamil Nadu, India
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19
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Rezvani M, Sabouri M, Aminmansour B, Tabesh H, Shafiei M, Mahmoodkhani M, Rahmani P, Falahpour S, Sourani A, Mahdavi SB. Atlantoaxial instability and cervical noninfectious spondylodiscitis in a patient with Wegener's granulomatosis: A case report. Clin Case Rep 2022; 10:e05675. [PMID: 35387290 PMCID: PMC8978785 DOI: 10.1002/ccr3.5675] [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: 02/16/2022] [Revised: 03/21/2022] [Accepted: 03/22/2022] [Indexed: 11/21/2022] Open
Abstract
A 61-year-old male patient with Wegener's granulomatosis was admitted due to neck pain and quadriparesis. Clinical evaluation showed severe cervical noninfectious spondylodiscitis, myelopathy, sagittal imbalance, and atlantoaxial instability. A combined anterior and posterior approach was implemented. Postoperative clinical evaluation showed improved neurologic status.
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Affiliation(s)
- Majid Rezvani
- Department of NeurosurgerySchool of MedicineIsfahan University of Medical SciencesIsfahanIran
| | - Masih Sabouri
- Department of NeurosurgerySchool of MedicineIsfahan University of Medical SciencesIsfahanIran
| | - Bahram Aminmansour
- Department of NeurosurgerySchool of MedicineIsfahan University of Medical SciencesIsfahanIran
| | - Homayoun Tabesh
- Department of NeurosurgerySchool of MedicineIsfahan University of Medical SciencesIsfahanIran
| | - Mehdi Shafiei
- Department of NeurosurgerySchool of MedicineIsfahan University of Medical SciencesIsfahanIran
| | - Mehdi Mahmoodkhani
- Department of NeurosurgerySchool of MedicineIsfahan University of Medical SciencesIsfahanIran
| | - Peiman Rahmani
- Department of NeurosurgerySchool of MedicineIsfahan University of Medical SciencesIsfahanIran
| | - Soheil Falahpour
- Department of NeurosurgerySchool of MedicineIsfahan University of Medical SciencesIsfahanIran
| | - Arman Sourani
- Department of NeurosurgerySchool of MedicineIsfahan University of Medical SciencesIsfahanIran
| | - Sadegh Baradaran Mahdavi
- Department of Physical Medicine and RehabilitationSchool of MedicineStudent Research CommitteeChild Growth and Development Research CenterResearch Institute for Primordial Prevention of Non‐Communicable DiseaseIsfahan University of Medical SciencesIsfahanIran
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20
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Haseli S, Mansoori B, Shafiei M, Shomal Zadeh F, Chalian H, Khoshpouri P, Yousem D, Chalian M. A Review of Posteromedial Lesions of the Chest Wall: What Should a Chest Radiologist Know? Diagnostics (Basel) 2022; 12:diagnostics12020301. [PMID: 35204391 PMCID: PMC8871555 DOI: 10.3390/diagnostics12020301] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2021] [Revised: 01/11/2022] [Accepted: 01/20/2022] [Indexed: 12/10/2022] Open
Abstract
A heterogeneous group of tumors can affect the posteromedial chest wall. They form diverse groups of benign and malignant (primary or secondary) pathologies that can arise from different chest wall structures, i.e., fat, muscular, vascular, osseous, or neurogenic tissues. Chest radiography is very nonspecific for the characterization of chest wall lesions. The modality of choice for the initial assessment of the chest wall lesions is computed tomography (CT). More advanced cross-sectional modalities such as magnetic resonance imaging (MRI) and positron emission tomography (PET) with fluorodeoxyglucose are usually used for further characterization, staging, treatment response, and assessment of recurrence. A systematic approach based on age, clinical history, and radiologic findings is required for correct diagnosis. It is essential for radiologists to be familiar with the spectrum of lesions that might affect the posteromedial chest wall and their characteristic imaging features. Although the imaging findings of these tumors can be nonspecific, cross-sectional imaging helps to limit the differential diagnosis and determine the further diagnostic investigation (e.g., image-guided biopsy). Specific imaging findings, e.g., location, mineralization, enhancement pattern, and local invasion, occasionally allow a particular diagnosis. This article reviews the posteromedial chest wall anatomy and different pathologies. We provide a combination of location and imaging features of each pathology. We will also explore the role of imaging and its strengths and limitations for diagnosing posteromedial chest wall lesions.
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Affiliation(s)
- Sara Haseli
- Department of Radiology, Division of Musculoskeletal Imaging and Intervention, University of Washington, Seattle, WA 98105, USA; (S.H.); (M.S.); (F.S.Z.); (P.K.)
| | - Bahar Mansoori
- Department of Radiology, Division of Abdominal Imaging, University of Washington, Seattle, WA 98105, USA;
| | - Mehrzad Shafiei
- Department of Radiology, Division of Musculoskeletal Imaging and Intervention, University of Washington, Seattle, WA 98105, USA; (S.H.); (M.S.); (F.S.Z.); (P.K.)
| | - Firoozeh Shomal Zadeh
- Department of Radiology, Division of Musculoskeletal Imaging and Intervention, University of Washington, Seattle, WA 98105, USA; (S.H.); (M.S.); (F.S.Z.); (P.K.)
| | - Hamid Chalian
- Department of Radiology, Division of Cardiothoracic Imaging, University of Washington, Seattle, WA 98105, USA;
| | - Parisa Khoshpouri
- Department of Radiology, Division of Musculoskeletal Imaging and Intervention, University of Washington, Seattle, WA 98105, USA; (S.H.); (M.S.); (F.S.Z.); (P.K.)
| | - David Yousem
- Russell H. Morgan Department of Radiology and Radiological Sciences, Division of Neuroradiology, Johns Hopkins Medical Center, Baltimore, MD 21287, USA;
| | - Majid Chalian
- Department of Radiology, Division of Musculoskeletal Imaging and Intervention, University of Washington, Seattle, WA 98105, USA; (S.H.); (M.S.); (F.S.Z.); (P.K.)
- Correspondence: ; Tel.: +1+(206)-598-2405
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21
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Damle N, Khurana A, Kumar R, Ranjan P, Sikdar S, Arora G. 99mTc-ethambutol scintigraphy with single-photon emission computed tomography/computed tomography in vertebral tuberculosis. Indian J Nucl Med 2022; 37:169-171. [PMID: 35982804 PMCID: PMC9380806 DOI: 10.4103/ijnm.ijnm_162_21] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2021] [Revised: 12/11/2021] [Accepted: 12/14/2021] [Indexed: 12/02/2022] Open
Abstract
Vertebral tuberculosis (TB) is a common form of extrapulmonary TB. Here, the slow-growing Mycobacterium bacillus reaches the disc space through the hematogenous route and leads to various complications. Radiological imaging and histopathology have been the mainstay of diagnosis, but radionuclide imaging techniques using radiolabeled antitubercular drugs have rarely found space in the clinical domain. Here, we present a case of vertebral TB, where a technetium-labeled antitubercular drug, ethambutol, was synthesized and used for imaging the bacteria in vivo. Thus, we demonstrate a rarely used potentially specific agent for tuberculous-infection imaging, which can be produced in-house, and provides rapid results.
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22
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Larrieu-Jimenez P, Crenshaw N, Gonzalez JM, Ortega J. Progressive Lower Back Pain With New-Onset Symptoms. J Nurse Pract 2022. [DOI: 10.1016/j.nurpra.2021.10.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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23
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Chotard E, Jacquier H, Bart G, Richette P, Rioux C, Joly V, Goossens J, Palazzo E, Forien M, Jelin G, Yazdanpanah Y, Dieudé P, Le Goff B, Ottaviani S. MRI Features Associated With the Detection of Microbial Pathogens by CT-Guided Biopsy in Septic Spondylodiscitis. J Clin Rheumatol 2022; 28:e189-e194. [PMID: 33337806 DOI: 10.1097/rhu.0000000000001683] [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: 11/26/2022]
Abstract
OBJECTIVE The aim of this study was to assess the magnetic resonance imaging (MRI) features associated with microbial pathogen detection by computed tomography (CT)-guided biopsy in patients with suspected septic spondylodiscitis. METHODS For the last 10-year period, we analyzed the medical records of patients who underwent MRI and CT-guided biopsy for suspected septic spondylodiscitis. Clinical characteristics were recorded. The following MRI features were assessed: edema or contrast enhancement of the intervertebral disc, adjacent vertebrae, epidural and paravertebral space, presence of abscess, and paravertebral edema size. A positive biopsy was defined by pathogen identification on bacterial analysis or the presence of granuloma on histology. Predictors of a positive biopsy were assessed with a logistic regression model. RESULTS We examined data for 61 patients (34 [56%] male; mean age, 59.9 ± 18.0 years); for 35 patients (57%), CT-guided biopsy was positive for a pathogen. The 4 MRI findings significantly associated with a positive biopsy were epiduritis, greater than 50% vertebral endplate edema, loss of intradiscal cleft, and abscess. The size of paravertebral edema was greater with a positive than negative biopsy (median, 15.9 [interquartile range, 11.3-21.3] vs 7.3 [4.6-12.9] mm; p = 0.004). On multivariable analysis, epiduritis was the only independent predictor of a positive biopsy (adjusted odds ratio, 7.4 [95% confidence interval, 1.7-31.4]; p = 0.006). CONCLUSIONS Epiduritis and the size of paravertebral edema on MRI are associated with detection of a microbial pathogen in suspected septic spondylodiscitis. For patients without these MRI signs, the need for further investigations such as enriched or prolonged cultures, a second CT-guided biopsy, or even surgical biopsy need to be discussed.
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Affiliation(s)
- Emilie Chotard
- From the Rheumatology Department, DHU FIRE, Pôle Infection Immunité, Bichat Hospital (AP-HP)
| | | | | | - Pascal Richette
- Rheumatology Department, Centre Viggo Petersen, Pole Appareil Locomoteur, Lariboisière Hospital (AP-HP), Inserm UMR 1132, USPC
| | - Christophe Rioux
- Infectious and Tropical Diseases Department, Bichat Hospital, Paris, France
| | - Véronique Joly
- Infectious and Tropical Diseases Department, Bichat Hospital, Paris, France
| | - Julia Goossens
- From the Rheumatology Department, DHU FIRE, Pôle Infection Immunité, Bichat Hospital (AP-HP)
| | - Elisabeth Palazzo
- From the Rheumatology Department, DHU FIRE, Pôle Infection Immunité, Bichat Hospital (AP-HP)
| | - Marine Forien
- From the Rheumatology Department, DHU FIRE, Pôle Infection Immunité, Bichat Hospital (AP-HP)
| | - Germain Jelin
- From the Rheumatology Department, DHU FIRE, Pôle Infection Immunité, Bichat Hospital (AP-HP)
| | - Yazdan Yazdanpanah
- Infectious and Tropical Diseases Department, Bichat Hospital, Paris, France
| | - Philippe Dieudé
- From the Rheumatology Department, DHU FIRE, Pôle Infection Immunité, Bichat Hospital (AP-HP)
| | | | - Sébastien Ottaviani
- From the Rheumatology Department, DHU FIRE, Pôle Infection Immunité, Bichat Hospital (AP-HP)
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24
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Bazán PL, Adaro JCS, Ciccioli NM, Adaro AOG, Gonzalez RAA. MORPHOLOGICAL ASPECT OF PYOGENIC SPINAL EPIDURAL ABSCESSES. PART I. COLUNA/COLUMNA 2022. [DOI: 10.1590/s1808-185120222101260738] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
ABSTRACT Background: Pyogenic Spinal Epidural Abscess (PSEA) is difficult to diagnose and can have devastating consequences. Magnetic Resonance Imaging (MRI) has high sensitivity and specificity, which are further increased with the use of contrast. There are several classifications of vertebral infectious processes, with emphasis on spondylodiscitis. Objective: To analyze the morphological parameters and their reproducibility; and to analyze different resonance imaging sequences. Methods: Using an image database, a morphological classification of PSEA was planned, with five parameters: Region (R), indicating the upper and lower limits of the abscess; Location (U), indicating whether the abscess is anterior or posterior within the canal; Compromise (C), meningeal or content of the structures; Association (A), discitis, osteomyelitis or both; and Perivertebral (P), anterior, lateral or posterior extravertebral abscess. The first three parameters give an idea of the volume of the PSEA, while the last two give the related infectious foci. Thirty-five cases were analyzed using Kappa’s coefficient. Results: The global intra- and interobserver reproducibility was Kappa 0.81. The results for each parameter were as follows: R=0.95, U=0.92, C=0.66, A=0.70 and P=0.80. The first three give a notion of volume and the last two relate to the presence of vertebral infectious foci outside the canal. T2 weighted MRI with contrast was found to be the most effective imaging sequence. Conclusion: The morphological classification is simple to use, with excellent reproducibility. The parameters with the highest reproducibility were region and location, with values >0.92. The addition of gadolinium contrast increased the sensitivity of the diagnosis; the use of sagittal and axial images in T2-MRI was the most sensitive imaging sequence. Evidence Level III; Original.
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Affiliation(s)
- Pedro Luis Bazán
- HIGA San Martín de La Plata, Argentina; Hospital Italiano de La Plata, Argentina; Instituto de Diagnóstico La Plata, Argentina
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Boudabbous S, Paulin EN, Delattre BMA, Hamard M, Vargas MI. Spinal disorders mimicking infection. Insights Imaging 2021; 12:176. [PMID: 34862958 PMCID: PMC8643376 DOI: 10.1186/s13244-021-01103-5] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2021] [Accepted: 10/03/2021] [Indexed: 12/23/2022] Open
Abstract
Spinal infections are very commonly encountered by radiologists in their routine clinical practice. In case of typical MRI features, the diagnosis is relatively easy to interpret, all the more so if the clinical and laboratory findings are in agreement with the radiological findings. In many cases, the radiologist is able to make the right diagnosis, thereby avoiding a disco-vertebral biopsy, which is technically challenging and associated with a risk of negative results. However, several diseases mimic similar patterns, such as degenerative changes (Modic) and crystal-induced discopathy. Differentiation between these diagnoses relies on imaging changes in endplate contours as well as in disc signal. This review sought to illustrate the imaging pattern of spinal diseases mimicking an infection and to define characteristic MRI and CT patterns allowing to distinguish between these different disco-vertebral disorders. The contribution of advanced techniques, such as DWI and dual-energy CT (DECT) is also discussed.
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Affiliation(s)
- Sana Boudabbous
- Division of Radiology, Department of Diagnosis, Geneva University Hospitals, Rue Gabrielle-Perret-Gentil 4, 1211, Geneva 14, Switzerland. .,Faculty of Medicine of the Geneva University, Geneva, Switzerland.
| | - Emilie Nicodème Paulin
- Division of Radiology, Medical Imaging Department, Hospital of Neuchatel, Neuchâtel, Switzerland
| | - Bénédicte Marie Anne Delattre
- Division of Radiology, Department of Diagnosis, Geneva University Hospitals, Rue Gabrielle-Perret-Gentil 4, 1211, Geneva 14, Switzerland.,Faculty of Medicine of the Geneva University, Geneva, Switzerland
| | - Marion Hamard
- Division of Radiology, Department of Diagnosis, Geneva University Hospitals, Rue Gabrielle-Perret-Gentil 4, 1211, Geneva 14, Switzerland
| | - Maria Isabel Vargas
- Faculty of Medicine of the Geneva University, Geneva, Switzerland.,Division of Neuroradiology, Diagnostic Department, University Hospitals of Geneva, Geneva, Switzerland
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Cannavale A, Nardis P, Lucatelli P, Corona M, Santoni M, Cannavale G, Teodoli L, Bezzi M, Catalano C. Percutaneous spine biopsy under cone beam computed tomography guidance for spondylodiscitis: Time is diagnosis. Neuroradiol J 2021; 34:607-614. [PMID: 34028300 PMCID: PMC8649179 DOI: 10.1177/19714009211017799] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
BACKGROUND AND PURPOSE Percutaneous spine biopsies for spondylodiscitis have been long discussed due to the low microbiologic yield. This retrospective study evaluated factors of cone beam computed tomography-guided spine biopsies that may affect microbiologic yield. METHODS We retrospectively reviewed percutaneous spine biopsies under cone beam computed tomography for spondylodiscitis performed from January 2015-December 2020. Clinical and technical features such as the time from initial symptoms to biopsy, level biopsied, biopsy needle type/gauge, technical approach, radiation dose, technical success and microbiologic yield were recorded. Pre-procedure magnetic resonance imaging findings were also recorded such as the number of vertebral bodies involved, and disc morphology. Univariate logistic regression analysis and Receiver operating characteristic analysis were performed to assess any relationship between relevant factors and positive cultures. RESULTS A total of 50 patients underwent cone beam computed tomography-guided biopsies for spondylodiscitis, with resulted positive cultures in 18 patients (36%). The mean time from the initial referral of spinal symptoms to procedure in the positive culture group was the most influential finding for positive cultures (odds ratio 56.3, p < 0.001). Among magnetic resonance imaging findings, thin or degenerated intervertebral disc was a negative factor for positive cultures (odds ratio 0.09, p = 0.006). Univariate analysis showed that percutaneous approach (transpedicular vs posterolateral/interlaminar) needle size (11-13 g vs 16-18G, odds ratio 1.2, p = 0.7) and site of biopsy (disc vs bone vs disc plus endplate) did not significantly affect the microbiologic yield of spine biopsy. CONCLUSION Percutaneous cone beam computed tomography-guided biopsy for spondylodiscitis is a reliable and safe technique and its microbiologic yield may increase if biopsy is performed within the acute phase of infection.
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Affiliation(s)
| | - Piergiorgio Nardis
- Department of Radiological Sciences, Umberto I Policlinico di Roma, Italy
| | | | - Mario Corona
- Department of Radiological Sciences, Umberto I Policlinico di Roma, Italy
| | - Mariangela Santoni
- Department of Radiological Sciences, Umberto I Policlinico di Roma, Italy
| | - Giuseppe Cannavale
- Department of Radiological Sciences, Umberto I Policlinico di Roma, Italy
| | - Leonardo Teodoli
- Department of Radiological Sciences, Umberto I Policlinico di Roma, Italy
| | - Mario Bezzi
- Department of Radiological Sciences, Umberto I Policlinico di Roma, Italy
| | - Carlo Catalano
- Department of Radiological Sciences, Umberto I Policlinico di Roma, Italy
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Marathe NA, Tedesco G, Chiesa AM, Mallepally AR, Di Carlo M, Ghermandi R, Evangelisti G, Girolami M, Pipola V, Gasbarrini A. Pyogenic and Non-Pyogenic Spinal Infections: Diagnosis and Treatment. Curr Med Imaging 2021; 18:231-241. [PMID: 34789140 DOI: 10.2174/1573405617666211117143203] [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: 02/26/2021] [Revised: 08/20/2021] [Accepted: 09/15/2021] [Indexed: 11/22/2022]
Abstract
Spinal infection (SI) is an infection of vertebral bodies, intervening disc, and/or adjoining para-spinal tissue. It represents less than 10 % of all skeletal infections. There are numerous factors that predispose to developing a SI. Due to the low specificity of signs, delayed diagnosis is common. Hence, SI may be associated with poor outcomes. Diagnosis of SI must be supported by clinicopathological and radiological findings. MRI is a reliable modality of choice. Treatment options vary according to the site of the infection, disease progression, neurology, presence of instability, and general condition of the subject. Conservative treatment (orthosis/ bed-rest + antibiotics) is recommended during the early course with no/ lesser degree of neurological involvement and to medically unfit patients. Nevertheless, when conservative measures alone fail, surgical interventions must be considered. The use of concomitant antimicrobial drugs intravenously during initial duration followed by oral administration is a necessity. Controversies exist regarding the optimal duration of antimicrobial therapy, yet never given less than six weeks. Heterogeneity in clinical picture and associated co-morbidities with a range of treatment modalities are available; however, a common applicable guideline for SI does not exist. Managing SI must be tailored on a case-to-case basis.
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Affiliation(s)
| | - Giuseppe Tedesco
- IRCCS - Istituto Ortopedico Rizzoli, Oncologic and Degenerative Spine Surgery, Bologna. Italy
| | - Anna Maria Chiesa
- IRCCS - Istituto Ortopedico Rizzoli, Oncologic and Degenerative Spine Surgery, Bologna. Italy
| | | | - Maddalena Di Carlo
- IRCCS - Istituto Ortopedico Rizzoli, Oncologic and Degenerative Spine Surgery, Bologna. Italy
| | - Riccardo Ghermandi
- IRCCS - Istituto Ortopedico Rizzoli, Oncologic and Degenerative Spine Surgery, Bologna. Italy
| | - Gisberto Evangelisti
- IRCCS - Istituto Ortopedico Rizzoli, Oncologic and Degenerative Spine Surgery, Bologna. Italy
| | - Marco Girolami
- IRCCS - Istituto Ortopedico Rizzoli, Oncologic and Degenerative Spine Surgery, Bologna. Italy
| | - Valerio Pipola
- IRCCS - Istituto Ortopedico Rizzoli, Oncologic and Degenerative Spine Surgery, Bologna. Italy
| | - Alessandro Gasbarrini
- IRCCS - Istituto Ortopedico Rizzoli, Oncologic and Degenerative Spine Surgery, Bologna. Italy
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Conan Y, Laurent E, Belin Y, Lacasse M, Amelot A, Mulleman D, Rosset P, Bernard L, Grammatico-Guillon L. Large increase of vertebral osteomyelitis in France: a 2010-2019 cross-sectional study. Epidemiol Infect 2021; 149:e227. [PMID: 34612186 PMCID: PMC8569834 DOI: 10.1017/s0950268821002181] [Citation(s) in RCA: 25] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2021] [Revised: 08/13/2021] [Accepted: 09/28/2021] [Indexed: 12/17/2022] Open
Abstract
Vertebral osteomyelitis (VO) represents 4-10% of bone and joint infections. In Western countries, its incidence seems to increase, simultaneously with an increasing number of comorbidities among an ageing population. This study aimed to assess the evolution of VO epidemiology in France over the 2010-2019 decade. A nationwide cross-sectional study was conducted using the French hospital discharge data collected through the French diagnosis-related groups 'Programme de Médicalisation des Systèmes d'Information'. VOs were detected with a previously validated case definition using International Classification of Diseases 10 (ICD-10) codes, implemented with the French current procedural terminology codes. The study population included all patients hospitalised in France during the 2010-2019 decade, aged 15 years old and more. Patient and hospital stay characteristics and their evolutions were described. During the study period, 42 105 patients were hospitalised for VO in France involving 60 878 hospital stays. The mean VO incidence was 7.8/100 000 over the study period, increasing from 6.1/100 000 in 2010 to 11.3/100 000 in 2019. The mean age was 64.8 years old and the sex ratio was 1.56. There were 31 341 (74.4%) patients with at least one comorbidity and 3059 (7.3%) deceased during their hospital stay. Even if rare, device-associated VOs (4450 hospital stays, 7.3%) highly increased over the period. The reliability of the method, based upon an exhaustive database and a validated case definition, provided an effective tool to compare data over time in real-life conditions to regularly update the epidemiology of VO.
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Affiliation(s)
- Yoann Conan
- Department of Public Health, Unit of Clinical Epidemiology (EpiDcliC), Teaching Hospital of Tours, Tours, France
- Department of Infectious Diseases, Teaching Hospital of Tours, Tours, France
- Medical School, University of Tours, Tours, France
| | - Emeline Laurent
- Department of Public Health, Unit of Clinical Epidemiology (EpiDcliC), Teaching Hospital of Tours, Tours, France
- Research Unit EA7505 (Education Ethique et Santé), University of Tours, Tours, France
| | - Yannick Belin
- Department of Public Health, Unit of Clinical Epidemiology (EpiDcliC), Teaching Hospital of Tours, Tours, France
- Medical School, University of Tours, Tours, France
| | - Marion Lacasse
- Department of Infectious Diseases, Teaching Hospital of Tours, Tours, France
- Medical School, University of Tours, Tours, France
| | - Aymeric Amelot
- Department of Neurosurgery, Teaching Hospital of Tours, Tours, France
| | - Denis Mulleman
- Medical School, University of Tours, Tours, France
- Department of Rheumatology, Teaching Hospital of Tours, Tours, France
- Reference Centre for Complex Bone and Joint Infections of Western France (CRIOGO), Tours, France
| | - Philippe Rosset
- Medical School, University of Tours, Tours, France
- Department of Orthopaedic Surgery, Teaching Hospital of Tours, Tours, France
- Reference Centre for Complex Bone and Joint Infections of Western France (CRIOGO), Tours, France
| | - Louis Bernard
- Department of Infectious Diseases, Teaching Hospital of Tours, Tours, France
- Medical School, University of Tours, Tours, France
- Reference Centre for Complex Bone and Joint Infections of Western France (CRIOGO), Tours, France
| | - Leslie Grammatico-Guillon
- Department of Public Health, Unit of Clinical Epidemiology (EpiDcliC), Teaching Hospital of Tours, Tours, France
- Medical School, University of Tours, Tours, France
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Naselli N, Facchini G, Lima GM, Evangelisti G, Ponti F, Miceli M, Spinnato P. MRI in differential diagnosis between tuberculous and pyogenic spondylodiscitis. EUROPEAN SPINE JOURNAL : OFFICIAL PUBLICATION OF THE EUROPEAN SPINE SOCIETY, THE EUROPEAN SPINAL DEFORMITY SOCIETY, AND THE EUROPEAN SECTION OF THE CERVICAL SPINE RESEARCH SOCIETY 2021; 31:431-441. [PMID: 34379210 DOI: 10.1007/s00586-021-06952-8] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/25/2021] [Revised: 07/26/2021] [Accepted: 07/29/2021] [Indexed: 10/20/2022]
Abstract
PURPOSE The aim of the study was to investigate whether MRI findings together with epidemiological data could help in differentiating between tuberculous and pyogenic spondylodiscitis. METHODS Clinical records of 260 patients with a suspicion of spondylodiscitis were analysed. Patients were selected using the following inclusion criteria: confirmed diagnosis of spondylodiscitis either from pyogenic bacteria or from Mycobacterium tuberculosis and contrast-enhanced MRI performed before treatment. Clinical data concerning age, sex and country-of-origin were also collected. For each patient, several MRI-features were evaluated by two-expert musculoskeletal radiologists. A chi-squared test and a multiple logistic regression were used to find the best predictors of tuberculous or pyogenic spondylodiscitis. RESULTS 114 patients were retrospectively enrolled, 30 with tuberculous and 84 with pyogenic spondylodiscitis. We found 18 MRI-features, significantly different between the two groups. Among these, the most strongly associated with tuberculous spondylodiscitis were: heterogeneous vertebral signal on T1w-sequences (Odds Ratio(OR) = 205.759-p < 0.001), presence of epidural abscess (OR = 86.221-p < 0.001), severe vertebral destruction (OR = 10.017-p < 0.001) and absence of epidural phlegmon (OR = 86.221-p < 0.001). Moreover, patients coming from countries with a middle-high prevalence of tuberculosis were more frequently affected by tuberculous spondylodiscitis than others were (OR = 229.136-p < 0.001). The best prediction model demonstrated a correct classification rate of 94.7%. CONCLUSION To the best of our knowledge this is the largest study comparing MRI-features of tuberculous and pyogenic spondylodiscitis. The above-mentioned MRI-features and epidemiological data are crucial in the differential diagnosis between these two entities, guiding the choice of the appropriate therapy, especially when a pathogen cannot be clearly identified with other modalities.
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Affiliation(s)
- Nicoletta Naselli
- Department of Radiology, S.Orsola-Malpighi Hospital, University of Bologna, Bologna, Italy.
| | - Giancarlo Facchini
- Department of Radiology, IRCCS Istituto Ortopedico Rizzoli, Bologna, Italy
| | - Giacomo Maria Lima
- Nuclear Medicine Department, University Hospital of Modena, Modena, Italy
| | - Gisberto Evangelisti
- Department of Oncologic and Degenerative Spine Surgery, IRCCS Istituto Ortopedico Rizzoli, Bologna, Italy
| | - Federico Ponti
- Department of Radiology, IRCCS Istituto Ortopedico Rizzoli, Bologna, Italy
| | - Marco Miceli
- Department of Radiology, IRCCS Istituto Ortopedico Rizzoli, Bologna, Italy
| | - Paolo Spinnato
- Department of Radiology, IRCCS Istituto Ortopedico Rizzoli, Bologna, Italy
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30
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Hasan GA, Raheem HQ, Qutub A, Wais YB, Katran MH, Shetty GM. Management of Pyogenic Spondylodiscitis Following Nonspinal Surgeries: A Tertiary Care Center Experience. Int J Spine Surg 2021; 15:591-599. [PMID: 33985997 DOI: 10.14444/8080] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
BACKGROUND The literature is lacking on the incidence and management of pyogenic spondylodiscitis (PS) following routine elective surgical procedures. This study aimed to analyze the presentation and treatment outcome in patients with PS following nonspinal surgeries at a tertiary care center with a minimum follow-up of 12 months. METHODS The demographic, clinical-radiologic features, and treatment outcomes in 40 patients with a diagnosis of PS following nonspinal surgical procedures were retrospectively reviewed and analyzed. RESULTS The mean age at presentation was 36.4 ± 11.8 years, with 80% of patients being female. The common surgical procedures associated with PS were cesarean delivery (30%), gastric sleeve surgery (12.5%), and dilatation and curettage (12.5%). The tissue biopsy culture was positive in 82.5% of patients. A total of 26 patients (65%) were treated with conservative management and 14 patients (35%) were treated surgically. The mean pretreatment Core Outcome Measure Index score significantly decreased at 12 months (P < .0001) after treatment. The mean pretreatment erythrocyte sedimentation rate (P < .0001) and C-reactive protein (P < .0001) levels significantly decreased at 12 months after treatment. CONCLUSIONS With most patients with PS following nonspinal surgeries treated with conservative management, excellent clinical outcomes were achieved in all patients at 12 months after treatment. The diagnosis of PS should be considered in patients presenting with low back pain (LBP) with a recent history of undergoing a nonspinal surgical procedure. Patients who undergo surgical procedures are an important "at-risk" patient population, and early diagnosis and treatment can help achieve excellent clinical outcomes. Further studies are required to determine risk factors and possible perioperative precautions that can be taken to prevent PS in patients who undergo nonspine surgeries. LEVEL OF EVIDENCE 3. CLINICAL RELEVANCE Pyogenic spondylodiscitis should be suspected in patients presenting with LBP after a recent non-spinal surgical procedure. Early diagnosis and treatment can help achieve excellent clinical outcomes in these patients.
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Affiliation(s)
- Ghazwan A Hasan
- Department of Orthopaedic Surgery, Al-Kindi Teaching Hospital, Baghdad, Iraq
| | | | | | | | | | - Gautam M Shetty
- Orthopaedic & Knee Clinic, Mumbai, India.,AIMD Research, Mumbai, India
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Marek T, Hunt CH, Howe BM, Spinner RJ. "Wrap-Around Sign" in Non-Hodgkin Lymphoma of the Spine: A Common yet Overlooked Imaging Feature? World Neurosurg 2021; 151:e457-e465. [PMID: 33895372 DOI: 10.1016/j.wneu.2021.04.060] [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: 12/07/2020] [Revised: 04/12/2021] [Accepted: 04/13/2021] [Indexed: 11/28/2022]
Abstract
BACKGROUND Anecdotal cases of the so-called "wrap-around" appearance in non-Hodgkin lymphoma (NHL) of the spine exist in the medical literature. In this paper, we looked at the prevalence of this imaging feature in our institutional cases. MATERIALS AND METHODS We screened our institutional database for biopsy-proven NHL. Our inclusion criteria were the histologically confirmed diagnosis of NHL involving any vertebra, available magnetic resonance imaging of the affected site, and a positive wrap-around sign. Exclusion criteria included lymphoma cases without the wrap-around sign and/or histology other than NHL. We subdivided the cases into 3 groups: 1) lymphoma wrapped around the vertebral body; 2) the posterior elements alone; or 3) both the vertebral body and posterior elements. RESULTS Our search identified 147 cases of NHL in which a confirmatory biopsy at the primary tumor site was available. Of those, 23 cases fulfilled the inclusion criteria (16 men and 7 women with average age at diagnosis of 63.3 years), yielding prevalence of 15.6% in our series. Most commonly the lymphoma involved the vertebral body with or without some involvement of the posterior vertebral elements (n = 20, 86.9%), followed by posterior vertebral elements (n = 2, 8.7%). One remaining case (4.4%) had lymphoma involving the anterior vertebral body and posterior elements. CONCLUSIONS Findings of our pilot study indicated that the wrap-around sign in cases of NHL could be helpful diagnostically. This sign may be frequently under-recognized, leading to potential for a diagnostic dilemma on imaging. Larger studies are necessary to obtain more precise information about the prevalence of the wrap-around sign.
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Affiliation(s)
- Tomas Marek
- Department of Neurologic Surgery, Mayo Clinic, Rochester, Minnesota, USA
| | | | - B Matthew Howe
- Department of Radiology, Mayo Clinic, Rochester, Minnesota, USA
| | - Robert J Spinner
- Department of Neurologic Surgery, Mayo Clinic, Rochester, Minnesota, USA.
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Du X, Wang W, Wu C, Jia B, Li W, Qiu L, Jiang P, Wang J, Li YQ. Enzyme-responsive turn-on nanoprobes for in situ fluorescence imaging and localized photothermal treatment of multidrug-resistant bacterial infections. J Mater Chem B 2021; 8:7403-7412. [PMID: 32658955 DOI: 10.1039/d0tb00750a] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Sensitive diagnosis and elimination of multidrug-resistant bacterial infections at an early stage remain paramount challenges. Herein, we present a gelatinase-responsive turn-on nanoprobe for in situ near-infrared (NIR) fluorescence imaging and localized photothermal treatment (PTT) of in vivo methicillin-resistant Staphylococcus aureus (MRSA) infections. The designed nanoprobe (named AuNS-Apt-Cy) is based on gold nanostars functionalized with MRSA-identifiable aptamer and gelatinase-responsive heptapeptide linker (CPLGVRG)-cypate complexes. The AuNS-Apt-Cy nanoprobe is non-fluorescent in aqueous environments due to the fluorescence resonance energy transfer between the gold nanostar core and cypate dye. We demonstrate that the AuNS-Apt-Cy nanoprobe can achieve MRSA targeting and accumulation as well as gelatinase (overexpressed in MRSA environments)-responsive turn-on NIR fluorescence due to the cleavage of the CPLGVRG linker and localized in vitro PTT via a mechanism involving bacterial cell wall and membrane disruption. In vivo experiments show that the AuNS-Apt-Cy nanoprobe can enable rapid (1 h post-administration) and in situ turn-on NIR fluorescence imaging with high sensitivity (105 colony-forming units) in diabetic wound and implanted bone plate mouse models. Remarkably, the AuNS-Apt-Cy nanoprobe can afford efficient localized PTT of diabetic wound and implanted bone plate-associated MRSA infections under the guidance of turn-on NIR fluorescence imaging, showing robust capability for early diagnosis and treatment of in vivo MRSA infections. In addition, the nanoprobe exhibits negligible damage to surrounding healthy tissues during PTT due to its targeted accumulation in the MRSA-infected site, guaranteeing its excellent in vivo biocompatibility and solving the main bottlenecks that hinder the clinical application of PTT-based antibacterial strategies.
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Affiliation(s)
- Xuancheng Du
- School of Pharmaceutical Engineering and Life Science, Changzhou University, Changzhou 213164, China.
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Henkelmann J, Bremicker K, Denecke T, Hoffmann KT, Henkelmann R, Heyde CE, Sabri O, Purz S. Clinical suspicion of spondylodiscitis with equivocal MRI findings: does diffusion-weighted imaging prove helpful here? Acta Radiol 2021; 62:394-400. [PMID: 32469668 DOI: 10.1177/0284185120927905] [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: 11/15/2022]
Abstract
BACKGROUND Despite the high sensitivity of magnetic resonance imaging (MRI), early detection of spondylodiscitis (SpD) remains challenging due to its low specificity. PURPOSE To assess the diagnostic value of diffusion-weighted imaging (DWI) in suspected cases of SpD with ambiguous early MRI findings in the differentiation of degenerative disorders (DD). MATERIAL AND METHODS In this prospective study, 52 patients suspected of having SpD underwent a whole-spine 3-T MRI scan comprising sagittal DWI. Of 58 conspicuous, T2-weighted, signal increased discs, 39 were successfully evaluated using DWI. Apparent diffusion coefficient (ADC) values and ADC maps were blindly analyzed using the region of interest of the conspicuous disc and a normal adjacent reference disc. Intraindividual ratios (conspicuous disc: reference disc) were calculated. RESULTS All conspicuous discs showed increased absolute ADC values, which did not differ significantly between SpD (n = 22) and DD (n = 17). However, ADC ratio was significantly higher in SpD vs. DD (P < 0.05). In receiver operating characteristic curve analysis, an ADC ratio threshold of 1.6 resulted in 45% sensitivity and 88% specificity (area under the curve = 0.69) for SpD diagnosis. CONCLUSION The absolute ADC value does not provide a reliable diagnosis of SpD. Increased diffusivity can be an indication of infection but should always be discussed in the context of existing disc degeneration.
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Affiliation(s)
- Jeanette Henkelmann
- Department for Diagnostic and Interventional Radiology, University Hospital Leipzig, Leipzig, Germany
| | - Kristina Bremicker
- Department for Diagnostic and Interventional Radiology, University Hospital Leipzig, Leipzig, Germany
| | - Timm Denecke
- Department for Diagnostic and Interventional Radiology, University Hospital Leipzig, Leipzig, Germany
| | - Karl-Titus Hoffmann
- Department for Diagnostic and Interventional Radiology, University Hospital Leipzig, Leipzig, Germany
| | - Ralf Henkelmann
- Department for Orthopedics, Trauma and Plastic Surgery, University Hospital Leipzig, Leipzig, Germany
| | - Christoph-Eckhard Heyde
- Department for Orthopedics, Trauma and Plastic Surgery, University Hospital Leipzig, Leipzig, Germany
| | - Osama Sabri
- Department for Nuclear Medicine, University Hospital Leipzig, Leipzig, Germany
| | - Sandra Purz
- Department for Nuclear Medicine, University Hospital Leipzig, Leipzig, Germany
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Kasalak Ö, Wouthuyzen-Bakker M, Dierckx RAJO, Jutte PC, Kwee TC. Time to Reconsider Routine Percutaneous Biopsy in Spondylodiscitis? AJNR Am J Neuroradiol 2021; 42:627-631. [PMID: 33541899 DOI: 10.3174/ajnr.a6994] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2020] [Accepted: 11/09/2020] [Indexed: 11/07/2022]
Abstract
Percutaneous image-guided biopsy currently has a central role in the diagnostic work-up of patients with suspected spondylodiscitis. However, on the basis of recent evidence, the value of routine image-guided biopsy in this disease can be challenged. In this article, we discuss this recent evidence and also share a new diagnostic algorithm for spondylodiscitis that was recently introduced at our institution. Thus, we may move from a rather dogmatic approach in which routine image-guided biopsy is performed in any case to a more individualized use of this procedure.
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Affiliation(s)
- Ö Kasalak
- From the Departments of Radiology, Nuclear Medicine and Molecular Imaging (Ö.K., R.A.J.O.D., T.C.K.)
| | | | - R A J O Dierckx
- From the Departments of Radiology, Nuclear Medicine and Molecular Imaging (Ö.K., R.A.J.O.D., T.C.K.)
| | - P C Jutte
- Orthopedics (P.C.J.), University Medical Center Groningen, University of Groningen, Groningen, the Netherlands
| | - T C Kwee
- From the Departments of Radiology, Nuclear Medicine and Molecular Imaging (Ö.K., R.A.J.O.D., T.C.K.)
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35
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Relvas-Silva M, Pinho AR, Vital L, Leão B, Sousa AN, Carvalho AC, Veludo V. Azole-resistant Candida albicans Spondylodiscitis After Bariatric Surgery: A Case Report. JBJS Case Connect 2020; 10:e1900618. [PMID: 32773714 DOI: 10.2106/jbjs.cc.19.00618] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
CASE We present a case of azole and partial caspofungin-resistant Candida albicans spondylodiscitis, after bariatric surgery with bowel perforation. Treatment included debridement and several months of anidulafungin, complemented with antibacterial therapy because of relapse for bacterial superinfection. After treatment, the infection did not recur clinically or radiologically during one and half years follow-up. CONCLUSION Although C. albicans spondylodiscitis is rare, fungi should be suspected as a causative agent. Adequate history, imaging and laboratory testing, and medical and surgical treatment should be performed to successfully eradicate the infection and resolve potential neurological deficits.
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Affiliation(s)
- Miguel Relvas-Silva
- 1Orthopedics and Traumatology Unit, São João University Hospital Center, Porto, Portugal 2Unit of Anatomy, Department of Biomedicine, Faculty of Medicine, University of Porto-Center for Health Technology and Services Research (CINTESIS), Porto, Portugal 3Infectious Disease Unit, São João University Hospital Center, Porto, Portugal
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Comparison of the Diagnostic Value of MRI and Whole Body 18F-FDG PET/CT in Diagnosis of Spondylodiscitis. J Clin Med 2020; 9:jcm9051581. [PMID: 32455982 PMCID: PMC7290470 DOI: 10.3390/jcm9051581] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2020] [Revised: 05/18/2020] [Accepted: 05/19/2020] [Indexed: 12/11/2022] Open
Abstract
Spondylodiscitis is a spine infection for which a diagnosis by a magnetic resonance imaging (MRI) is considered the most appropriate imaging technique. The aim of this study was to compare the role of an 18F-fluorodeoxyglucose positron emission tomography/computed tomography (18F-FDG PET/CT) and an MRI in this field. For 56 patients with suspected spondylodiscitis for whom MRI and 18F-FDG PET/CT were performed, we retrospectively analyzed the results. Cohen’s κ was applied to evaluate the agreement between the two techniques in all patients and in subgroups with a different number of spinal districts analyzed by the MRI. Sensitivity, specificity, and accuracy were also evaluated. The agreements of the 18F-FDG PET/CT and MRI in the evaluation of the entire population, whole-spine MRI, and two-districts MRI were moderate (κ = 0.456, κ = 0.432, and κ = 0.429, respectively). In patients for whom one-district MRI was performed, 18F-FDG PET/CT and MRI were both positive and completely concordant (κ = 1). We also separately evaluated patients with suspected spondylodiscitis caused by Mycobacterium tuberculosis for whom the MRI and 18F-FDG PET/CT were always concordant excepting in 2 of the 18 (11%) patients. Sensitivity, specificity, and accuracy of the MRI and 18F-FDG PET/CT were 100%, 60%, 97%, and 92%, 100%, and 94%, respectively. Our results confirmed the 18F-FDG PET/CT diagnostic value in the diagnosis of spondylodiscitis is comparable to that of MRI for the entire spine evaluation. This could be considered a complementary technique or a valid alternative to MRI.
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Kim HS, Raorane HD, Sharma SB, Wu PH, Jang IT. Infected Schmorl's node: a case report. BMC Musculoskelet Disord 2020; 21:280. [PMID: 32359347 PMCID: PMC7196219 DOI: 10.1186/s12891-020-03276-4] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/05/2019] [Accepted: 04/07/2020] [Indexed: 11/21/2022] Open
Abstract
Background Schmorls node (SN) are mostly asymptomatic and incidental findings on MRI. However, sometimes they present like acute onset low back pain or acute exacerbation of chronic back pain after minor trauma. Case presentation We present rare case of symptomatic infected SN in 67 years female patient presented with complains of low back pain radiating to right buttock. After initial conservative treatment failed subsequent imaging showed significant increase in size of lesion with focal signal changes in disc space gave suspicion of underlying secondary pathology. Patient operated for complete excision of lesion. Histopathological report was suggestive of pyogenic vertebral osteomyelitis. Patient improved well postoperatively. Conclusion Most of the time acute SN responds well to conservative treatment; however rapid deterioration of symptoms or persistent severe pain should give suspicion of underlying secondary pathology.
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Affiliation(s)
- Hyeun Sung Kim
- Department of Neurosurgery, Nanoori Hospital Gangnam, 731, Eonju-ro, Gangnam-gu, Seoul, 06048, Republic of Korea.
| | - Harshavardhan Dilip Raorane
- Department of Neurosurgery, Nanoori Hospital Gangnam, 731, Eonju-ro, Gangnam-gu, Seoul, 06048, Republic of Korea
| | - Sagar Bhupendra Sharma
- Department of Neurosurgery, Nanoori Hospital Gangnam, 731, Eonju-ro, Gangnam-gu, Seoul, 06048, Republic of Korea
| | - Pang Hung Wu
- Department of Neurosurgery, Nanoori Hospital Gangnam, 731, Eonju-ro, Gangnam-gu, Seoul, 06048, Republic of Korea
| | - Il-Tae Jang
- Department of Neurosurgery, Nanoori Hospital Gangnam, 731, Eonju-ro, Gangnam-gu, Seoul, 06048, Republic of Korea
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Schwarz-Nemec U, Friedrich KM, Stihsen C, Schwarz FK, Trattnig S, Weber M, Grohs JG, Nemec SF. Vertebral Bone Marrow and Endplate Assessment on MR Imaging for the Differentiation of Modic Type 1 Endplate Changes and Infectious Spondylodiscitis. J Clin Med 2020; 9:jcm9030826. [PMID: 32197459 PMCID: PMC7141365 DOI: 10.3390/jcm9030826] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2020] [Accepted: 03/16/2020] [Indexed: 12/11/2022] Open
Abstract
On magnetic resonance (MR) imaging, Modic type 1 (MT1) endplate changes and infectious spondylodiscitis share similar findings. Therefore, this study investigated vertebral bone marrow and endplate changes to enable their differentiation. The lumbar spine MR examinations of 91 adult patients were retrospectively included: 39 with MT1; 19 with early spondylodiscitis without abscess; and 33 with advanced spondylodiscitis with abscess. The assessment included percentage of bone marrow edema on sagittal short tau inversion recovery images, and the signal ratio of edema to unaffected bone and endplate contour (normal; irregular, yet intact; blurred; destructive) on sagittal unenhanced T1-weighted images. Differences were tested for statistical significance by Chi-square test and mixed model analysis of variance. The MR diagnostic accuracy in differentiating MT1 and spondylodiscitis was assessed by cross-tabulation and receiver-operating characteristic analysis. The endplate contours, edema extents, and T1-signal ratios of MT1 (extent, 31.96%; ratio, 0.83) were significantly different (p < 0.001) from early spondylodiscitis (56.42%; 0.60), and advanced spondylodiscitis (91.84%; 0.61). The highest diagnostic accuracy (sensitivity, 94.87%; specificity, 94.23%; accuracy, 94.51%) in identifying MT1 was provided by an irregular, yet intact endplate contour. This may be a useful MR feature for the differentiation between MT1 and spondylodiscitis, particularly in its early stage.
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Affiliation(s)
- Ursula Schwarz-Nemec
- Division of Neuroradiology and Musculoskeletal Radiology, Department of Biomedical Imaging and Image-guided Therapy, Medical University of Vienna, A-1090 Vienna, Austria; (U.S.-N.); (F.K.S.); (M.W.); (S.F.N.)
| | - Klaus M. Friedrich
- Division of Neuroradiology and Musculoskeletal Radiology, Department of Biomedical Imaging and Image-guided Therapy, Medical University of Vienna, A-1090 Vienna, Austria; (U.S.-N.); (F.K.S.); (M.W.); (S.F.N.)
- Correspondence: ; +43-140400-48950
| | - Christoph Stihsen
- Department of Orthopaedics and Trauma Surgery, Medical University of Vienna, A-1090 Vienna, Austria; (C.S.); (J.G.G.)
| | - Felix K. Schwarz
- Division of Neuroradiology and Musculoskeletal Radiology, Department of Biomedical Imaging and Image-guided Therapy, Medical University of Vienna, A-1090 Vienna, Austria; (U.S.-N.); (F.K.S.); (M.W.); (S.F.N.)
| | - Siegfried Trattnig
- MR Center of Excellence, Department of Biomedical Imaging and Image-guided Therapy, Medical University of Vienna, A-1090 Vienna, Austria;
| | - Michael Weber
- Division of Neuroradiology and Musculoskeletal Radiology, Department of Biomedical Imaging and Image-guided Therapy, Medical University of Vienna, A-1090 Vienna, Austria; (U.S.-N.); (F.K.S.); (M.W.); (S.F.N.)
| | - Josef G. Grohs
- Department of Orthopaedics and Trauma Surgery, Medical University of Vienna, A-1090 Vienna, Austria; (C.S.); (J.G.G.)
| | - Stefan F. Nemec
- Division of Neuroradiology and Musculoskeletal Radiology, Department of Biomedical Imaging and Image-guided Therapy, Medical University of Vienna, A-1090 Vienna, Austria; (U.S.-N.); (F.K.S.); (M.W.); (S.F.N.)
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Alay H, Gözgeç E. Tuberculous spondylodiscitis in abscess form. Rev Soc Bras Med Trop 2020; 53:e20190581. [PMID: 32187348 PMCID: PMC7094044 DOI: 10.1590/0037-8682-0581-2019] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2019] [Accepted: 01/17/2020] [Indexed: 11/30/2022] Open
Affiliation(s)
- Handan Alay
- Department of Infectious Diseases and Clinical Microbiology, Faculty of Medicine, Ataturk University, Erzurum, Turkey
| | - Elif Gözgeç
- Department of Radiology, Faculty of Medicine, Ataturk University, Erzurum, Turkey
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Duan PG, Sheng YH, Deng CH, Tang BY, Yao HQ. Recurrent giant cell tumour of the thoracic spine managed by total en bloc spondylectomy and denosumab therapy: a case report. BMC Musculoskelet Disord 2020; 21:105. [PMID: 32061254 PMCID: PMC7023717 DOI: 10.1186/s12891-020-3129-4] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/24/2019] [Accepted: 02/10/2020] [Indexed: 02/06/2023] Open
Abstract
Background Giant cell tumour (GCT) of the bone is a rare, invasive benign bone tumour, which typically originates in the metaphyseal ends of long bones and rarely in the spine. Here, we report a rare case of recurrent GCT of the thoracic vertebra, which was managed by three-level total en bloc spondylectomy (TES) after denosumab therapy. Case presentation A 50-year-old woman presented with a 2-month history of progressive lower back pain. Magnetic resonance imaging revealed destruction of the T11 vertebra and a soft tissue mass. The patient underwent tumour resection. Computed tomography at the 2-year follow-up revealed relapse of the resected tumour, which had spread to the T12 vertebral body. Subsequently, denosumab therapy was administered to the patient for 1 year. The growth of the tumour was controlled, and its boundary line was clear. Thereafter, TES for the T10-T12 vertebrae was performed, and spinal reconstruction was completed through a one-stage single posterior approach. The patient’s condition improved postoperatively, and no evidence of recurrence of GCT of the bone or spinal deformity was observed at the 32-month follow-up. Conclusions Denosumab therapy contributed to tumour regression. Three-level TES may be an effective and feasible strategy for managing large recurrent GCTs of the spine after denosumab therapy.
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Affiliation(s)
- Ping-Guo Duan
- Department of Orthopaedic Surgery, The First Affiliated Hospital of Nanchang University, Nanchang, 330006, Jiangxi, People's Republic of China
| | - Yong-Hong Sheng
- Department of Orthopaedic Surgery, The First Affiliated Hospital of Nanchang University, Nanchang, 330006, Jiangxi, People's Republic of China
| | - Chang-Hao Deng
- Department of Orthopaedic Surgery, The First Affiliated Hospital of Nanchang University, Nanchang, 330006, Jiangxi, People's Republic of China
| | - Ben-Yu Tang
- Department of Orthopaedic Surgery, The First Affiliated Hospital of Nanchang University, Nanchang, 330006, Jiangxi, People's Republic of China
| | - Hao-Qun Yao
- Department of Orthopaedic Surgery, The First Affiliated Hospital of Nanchang University, Nanchang, 330006, Jiangxi, People's Republic of China.
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Strauss SB, Gordon SR, Burns J, Bello JA, Slasky SE. Differentiation between Tuberculous and Pyogenic Spondylodiscitis: The Role of the Anterior Meningovertebral Ligament in Patients with Anterior Epidural Abscess. AJNR Am J Neuroradiol 2019; 41:364-368. [PMID: 31831466 DOI: 10.3174/ajnr.a6370] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2019] [Accepted: 11/03/2019] [Indexed: 12/16/2022]
Abstract
BACKGROUND AND PURPOSE Differentiation between tuberculous and pyogenic spondylodiscitis is a diagnostic challenge because imaging often does not reliably distinguish the 2 entities and percutaneous biopsies are often culture-negative. The purpose of this study was to determine whether violation of the anterior meningovertebral ligament in the setting of anterior epidural abscess discriminates between these entities. MATERIALS AND METHODS This was a retrospective cohort study of all patients with acid-fast bacillus testing and anterior epidural abscess diagnosed on spinal MR imaging between May 2014 and September 2019, with a final diagnosis of tuberculous or pyogenic spondylodiscitis. Six cases of tuberculous spondylodiscitis (mean age, 45.5 years; 80% male) and 35 cases of pyogenic spondylodiscitis were evaluated (mean age, 56.6 years; 49% male). Demographic characteristics were recorded. Cases were assessed for anterior meningovertebral ligament destruction on MR imaging, as demonstrated by the shape of the epidural collection. Segmental location of the infection was also assessed. Independent 2-sample t tests and χ2 tests of independence were performed to evaluate the significance of the difference between the groups. RESULTS Five of 6 (83.3%) cases of tuberculous epidural abscess had an intact anterior meningovertebral ligament, and 0/35 cases of pyogenic epidural abscess demonstrated an intact ligament (P < .001). The presence of an intact anterior meningovertebral ligament had 83.3% sensitivity and 100% specificity for tuberculous spondylodiscitis, a 100% positive predictive value, and a 97.2% negative predictive value. CONCLUSIONS The presence of an intact anterior meningovertebral ligament has high sensitivity and specificity for tuberculous spondylodiscitis-associated epidural abscess, though these results should be validated in a larger sample.
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Affiliation(s)
- S B Strauss
- From the Department of Radiology (S.B.S.), Weill Cornell Medical Center, New York, New York
| | - S R Gordon
- Department of Radiology (S.R.G., J.B., J.A.B., S.E.S.), Montefiore Medical Center, Albert Einstein College of Medicine, Bronx, New York
| | - J Burns
- Department of Radiology (S.R.G., J.B., J.A.B., S.E.S.), Montefiore Medical Center, Albert Einstein College of Medicine, Bronx, New York
| | - J A Bello
- Department of Radiology (S.R.G., J.B., J.A.B., S.E.S.), Montefiore Medical Center, Albert Einstein College of Medicine, Bronx, New York
| | - S E Slasky
- Department of Radiology (S.R.G., J.B., J.A.B., S.E.S.), Montefiore Medical Center, Albert Einstein College of Medicine, Bronx, New York.
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Computed tomography imaging characteristics help to differentiate pyogenic spondylitis from brucellar spondylitis. EUROPEAN SPINE JOURNAL : OFFICIAL PUBLICATION OF THE EUROPEAN SPINE SOCIETY, THE EUROPEAN SPINAL DEFORMITY SOCIETY, AND THE EUROPEAN SECTION OF THE CERVICAL SPINE RESEARCH SOCIETY 2019; 29:1490-1498. [PMID: 31754822 DOI: 10.1007/s00586-019-06214-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/30/2019] [Revised: 08/09/2019] [Accepted: 11/07/2019] [Indexed: 10/25/2022]
Abstract
PURPOSE Both pyogenic spondylitis (PS) and brucellar spondylitis (BS) can cause deformities and permanent neurologic deficits without prompt diagnosis and treatment. However, differential diagnosis is challenging. The aim of this study was to compare the computed tomography (CT) imaging features of PS with those of BS. METHODS Thirty-two patients with PS and 44 with BS were enrolled in the study. CT images were obtained in all cases. Data on bone destruction and formation, vertebral wall destruction, and osteosclerotic changes were collected and compared using the Chi-square test or t test. A P value < 0.01 was considered statistically significant. Positive predictive values (PPV) for detecting PS or BS were reported. RESULTS Involvement of the lumbar vertebrae and multiple spinal levels was more common in the BS group than in the PS group. Bone destruction was significantly greater in the PS group than in the BS group (30.8 vs 18.0%; t = 3.920, P = 0.000), with more extensive destruction of the vertebral body (35.8 vs 12.5%, χ2 = 12.672, P = 0.002, PPV = 63.16%). In the BS group, there was more osteosclerosis around erosions (70.5 vs 43.3%, χ2 = 11.59, P = 0.001, PPV = 67.74%) and fan-shaped osteosclerosis (27.3 vs 19.4%, χ2 = 18.556, P = 0.006, PPV = 64.86%), more bone formation around the vertebra (77.2 vs 34.3%, χ2 = 33.608, P = 0.000, PPV = 76.83%), more bone formation under the anterior longitudinal ligament (63.6 vs 19.4%, χ2 = 30.133, P = 0.000, PPV = 76.09%), more longer anterior bone formation (3.55 vs 0.78 mm, t = 3.997, P = 0.000), and more anterior and closed-bone formation with local erosion (42.0 vs 9.0%, χ2 = 74.243, P = 0.000, PPV = 74.36%). CONCLUSIONS CT images have unique advantages of revealing the morphology of erosions, osteosclerosis, and bone formation around the vertebra and help to differentiate PS from BS. These slides can be retrieved under Electronic Supplementary Material.
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Pu F, Feng J, Yang L, Zhang L, Xia P. Misdiagnosed and mismanaged atypical spinal tuberculosis: A case series report. Exp Ther Med 2019; 18:3723-3728. [PMID: 31611930 PMCID: PMC6781804 DOI: 10.3892/etm.2019.8014] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2018] [Accepted: 01/18/2019] [Indexed: 11/11/2022] Open
Abstract
Compared to other diseases, early or atypical spinal tuberculosis (TB) is prone to being misdiagnosed due to the lack of specific clinical manifestations and misleading negative results of various laboratory analyses and imaging examinations. Various methods for diagnosing spinal TB have become research hotspots. Recently, it has been proposed that effective vaccination is a mainstay of long-term policies to combat and control the TB epidemic. However, some new TB vaccines require further evaluation and clinical trials to demonstrate their efficiency and safety. Thus, early diagnosis and effective treatment are the other essential long-term strategies for controlling the TB epidemic immunization is closely associated with the diagnosis of spinal TB, which will become the focus of future research and set the direction for future developments. The present study provides a case series and a literature review of the characteristics of spinal TB to provide guidance for the diagnosis, treatment and prognosis of spinal TB.
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Affiliation(s)
- Feifei Pu
- Department of Orthopedics, Wuhan No. 1 Hospital, Wuhan Integrated TCM & Western Medicine Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430022, P.R. China
| | - Jing Feng
- Department of Orthopedics, Wuhan No. 1 Hospital, Wuhan Integrated TCM & Western Medicine Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430022, P.R. China
| | - Lin Yang
- Department of Orthopedics, Wuhan No. 1 Hospital, Wuhan Integrated TCM & Western Medicine Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430022, P.R. China
| | - Lin Zhang
- Department of Orthopedics, Wuhan No. 1 Hospital, Wuhan Integrated TCM & Western Medicine Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430022, P.R. China
| | - Ping Xia
- Department of Orthopedics, Wuhan No. 1 Hospital, Wuhan Integrated TCM & Western Medicine Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430022, P.R. China
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Fujiwara T, Akeda K, Yamada J, Kondo T, Sudo A. Endplate and intervertebral disc injuries in acute and single level osteoporotic vertebral fractures: is there any association with the process of bone healing? BMC Musculoskelet Disord 2019; 20:336. [PMID: 31324243 PMCID: PMC6642561 DOI: 10.1186/s12891-019-2719-5] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/29/2018] [Accepted: 07/15/2019] [Indexed: 12/14/2022] Open
Abstract
Background The endplate-intervertebral disc (IVD) complex is closely interrelated with the vertebral body (VB) in the structural integrity of the anterior spinal column, including biomechanical and biological functions. Endplate and IVD injuries are usually found in association with vertebral fractures (VFs); however, little is known about their relevance to the healing of osteoporotic VFs (OVFs). The first purpose of this study was to evaluate the incidence and occurrence pattern of endplate and IVD injuries associated with single- and acute-OVFs, and the second was to evaluate the influence of endplate and IVD injuries on the occurrence of delayed union. Methods Endplate and IVD injuries associated with single- and acute-OVFs were retrospectively evaluated using magnetic resonance imaging (MRI). Vertebrae of 168 patients were included in the study. The occurrence rate and type of endplate and IVD injuries were radiologically evaluated, and the association between endplate and IVD injuries was statistically analyzed. Vertebrae of 85 patients, who received conservative treatment for acute OVFs, were included in the study and classified into two groups, union and delayed union, at 6 months after injury. To identify factors predicting delayed union, uni- and multivariate statistical analyses were performed. Vertebral MRI signal alternation patterns and endplate and IVD injuries were included as candidate factors in the logistic model. Results In association with OVFs, endplate injuries were observed in 103 of the 168 vertebrae (61%), and IVDs lesions were observed in 101 of 168 OVFs (60%); the occurrence of both injuries was significantly associated. Although no significant association with endplate and IVD injuries was identified, multivariate analysis demonstrated that intravertebral signal alternation (focal high signal intensity) and posterior wall injury were independent risk factors that predicted delayed union. Conclusions The results of this study showed that endplate and IVD injuries were found in approximately 60% of single and acute OVFs. These results suggest that fracture healing of OVFs would be mainly attributed to vertebral factors, including mechanical stress and metabolic status, among the three components of the anterior spinal column.
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Affiliation(s)
- Tatsuhiko Fujiwara
- Department of Orthopaedic Surgery, Murase Hospital, 3-12-10 Kanbe, Suzuka City, Mie, 514-0801, Japan
| | - Koji Akeda
- Department of Orthopaedic Surgery, Mie University Graduate School of Medicine, 2-174 Edobashi, Tsu City, Mie, 514-8507, Japan.
| | - Junichi Yamada
- Department of Orthopaedic Surgery, Mie University Graduate School of Medicine, 2-174 Edobashi, Tsu City, Mie, 514-8507, Japan
| | - Tetsushi Kondo
- Department of Orthopaedic Surgery, Murase Hospital, 3-12-10 Kanbe, Suzuka City, Mie, 514-0801, Japan
| | - Akihiro Sudo
- Department of Orthopaedic Surgery, Mie University Graduate School of Medicine, 2-174 Edobashi, Tsu City, Mie, 514-8507, Japan
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Rotter J, Dowlati E, Jha RT, Deng T, Mason RB. Primary cervical spine AL-κ amyloidoma: A case report and review of the literature. Neuropathology 2019; 39:231-239. [PMID: 31044465 DOI: 10.1111/neup.12556] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2019] [Revised: 03/13/2019] [Accepted: 03/14/2019] [Indexed: 12/16/2022]
Abstract
Of the myriad of variants of amyloidoses where abnormally folded proteins damage native tissue, primary cervical spine amyloidoma represents one of the rarest forms. Since clinical presentations and imaging findings appear similar to other pathologies, including abscesses, metastatic lesions, and inflammatory lesions, a definitive diagnosis requires a biopsy with specific immunohistochemical stains. We present the first known case of primary cervical amyloid light-chain (AL)-κ subtype amyloidoma and compare the clinical presentations, imaging findings, treatment options, and immunohistochemical subtypes of primary, hemodialysis, and multiple myeloma cervical amyloidomas. Our case is of a 58-year-old man who developed neck pain radiating to the left arm with bilateral upper extremity weakness over several months. Magnetic resonance imaging revealed a circumferential C1-C2 mass extending into the neural foramina inducing severe mass effect. The patient underwent C2 laminectomy and resection of the lesion which was discovered during surgery to be completely epidural. Postoperatively, his pain and weakness improved. A complete work-up was negative for systemic amyloidosis or inflammatory conditions. In the setting of a long clinical history of hemodialysis, this patient required specific staining and laboratory testing to correctly diagnose his primary cervical AL-κ subtype amyloidoma. Cervical amyloidomas comprise a very small minority of amyloid pathology with an exceptional prognosis following successful surgical resection and stabilization. It is recommended these patients undergo surgical resection with appropriate characterization and a complete work-up to rule out systemic disease.
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Affiliation(s)
- Juliana Rotter
- Department of Neurosurgery, Medstar Georgetown University Hospital, Washington, District of Columbia, USA
| | - Ehsan Dowlati
- Department of Neurosurgery, Medstar Georgetown University Hospital, Washington, District of Columbia, USA
| | - Ribhu T Jha
- Department of Neurosurgery, Medstar Georgetown University Hospital, Washington, District of Columbia, USA
| | - Tom Deng
- Department of Pathology, Medstar Washington Hospital Center, Washington, District of Columbia, USA
| | - Robert B Mason
- Department of Neurosurgery, Medstar Washington Hospital Center, Washington, District of Columbia, USA
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Murata K, Akeda K, Takegami N, Cheng K, Masuda K, Sudo A. Morphology of intervertebral disc ruptures evaluated by vacuum phenomenon using multi-detector computed tomography: association with lumbar disc degeneration and canal stenosis. BMC Musculoskelet Disord 2018; 19:164. [PMID: 29793459 PMCID: PMC5968599 DOI: 10.1186/s12891-018-2086-7] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/31/2018] [Accepted: 05/09/2018] [Indexed: 12/11/2022] Open
Abstract
Background The progression of intervertebral disc (IVD) degeneration leads to rupture within IVD tissues. The location and appearance of areas of gaseous radiolucency in the IVD, known as vacuum phenomena (VPs), are considered to indirectly indicate the position and extent of IVD rupture. The clinical significance of VPs in degenerated IVDs is not fully understood. The purpose of this study is to assess and classify the morphology of IVD ruptures by the presence of intradiscal VPs, and to examine the association between morphological VP-positive IVD ruptures and degenerative lumbar diseases. Methods IVD rupture was evaluated by the presence of VPs using computed tomography (CT) imaging. VP shape (spot, linear, island) was classified using sagittal imaging, and VP distribution (A-N: anterior AF-NP; N: NP only; N-P: NP-posterior AF; A-N-P: anterior and posterior AF-NP) was classified using axial imaging. The disc height index (DHI) was calculated from lateral radiographs. Disc degeneration and lumbar spinal stenosis were evaluated by MRI grade. Results In the VP shape analysis, the island type was the most common, followed by linear and spot types. In the VP distribution analysis, A-N was the most common group, followed by N, N-P and A-N-P. Intra- and inter-observer reliabilities were statistically sufficient to classify different rupture shapes and distributions. The DHI tended to be lower in discs that contained VPs, especially in the anterior AF area. The shape and distribution of intradiscal VPs were significantly associated with the degree of disc degeneration and lumbar spinal stenosis graded by MRI. Discs with VPs extending from the NP into the anterior and/or posterior AF had a significantly higher proportion of advanced disc degeneration (Pfirrmann’s classification: grades IV and V). Conclusions This is the first study to analyze the morphology of IVD rupture evaluated by the presence of intradiscal VPs using CT imaging. This classification can comprehensively present the shape and axial distribution of VPs within IVDs. Intradiscal VPs are associated with the progression of disc degeneration and lumbar spinal stenosis.
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Affiliation(s)
- Koichiro Murata
- Department of Orthopaedic Surgery, Mie University Graduate School of Medicine, 2-174 Edobashi, Tsu City, Mie, 514-8507, Japan
| | - Koji Akeda
- Department of Orthopaedic Surgery, Mie University Graduate School of Medicine, 2-174 Edobashi, Tsu City, Mie, 514-8507, Japan.
| | - Norihiko Takegami
- Department of Orthopaedic Surgery, Mie University Graduate School of Medicine, 2-174 Edobashi, Tsu City, Mie, 514-8507, Japan
| | - Kevin Cheng
- Department of Orthopaedic Surgery, University of California, San Diego, 9500 Gilman Dr, La Jolla, CA, 92093-0863, USA
| | - Koichi Masuda
- Department of Orthopaedic Surgery, University of California, San Diego, 9500 Gilman Dr, La Jolla, CA, 92093-0863, USA
| | - Akihiro Sudo
- Department of Orthopaedic Surgery, Mie University Graduate School of Medicine, 2-174 Edobashi, Tsu City, Mie, 514-8507, Japan
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Katsu M, Ohba T, Ebata S, Haro H. Comparative study of the paraspinal muscles after OVF between the insufficient union and sufficient union using MRI. BMC Musculoskelet Disord 2018; 19:143. [PMID: 29759081 PMCID: PMC5952377 DOI: 10.1186/s12891-018-2064-0] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/15/2018] [Accepted: 04/26/2018] [Indexed: 11/24/2022] Open
Abstract
Background Identification of poor prognostic factors for OVF is important but has not yet been clearly established. Despite paraspinal muscles could play an important role in the etiology of OVF, what influence time-dependent changes in paraspinal muscles have after OVF, and the impact on conservative treatments for patients who have an OVF remain largely unknown. The purposes of this study were to (1) evaluate time-dependent changes of the paraspinal musculature using MRI after injury in patients with osteoporotic vertebral fractures (OVFs), and (2) compare paraspinal muscles between conservatively treated patients with OVF who have successful union and those failed to conservative treatment. Methods A total of 115 consecutive patients who had sustained a recent OVF injury in the thoracolumbar region were assessed for eligibility using medical records and all required data were available from 90 patients who had been followed up for at least 6 months. Patients who needed to undergo surgery and patients who were diagnosed as having insufficient union after 6 months of follow-up were assigned to a group with insufficient union. Lumbar trunk parameters, relative cross-sectional area (rCSA) and proportion of fat infiltration (FI%) were calculated from MRI. To evaluate the time-dependent changes in the paraspinal muscle in patients after OVF injury, correlations between the timing of MRI and rCSA, FI% were determined. To clarify the impact of paraspinal muscles on the outcome of conservative treatments of patients with OVF, we compared rCSA between the groups. Results Sixty-five patients were assigned to a group with insufficient union and 25 patients were assigned to a group with successful union. FI% of the multifidus and erector spinae in the group with insufficient union were significantly greater than in the group with union. The timing of MRI in relation to initial injury was significantly correlated with FI% of the multifidus and erector spinae. rCSA of the erector spinae was significantly larger in the group with successful union than in the group with insufficient union. Conclusions These findings indicated a time-dependent increase of fatty degeneration of the multifidus and erector muscles, but no change in the rCSA and larger rCSAs of spinal erectors may play a role in successful union in patients with OVF. Electronic supplementary material The online version of this article (10.1186/s12891-018-2064-0) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Marina Katsu
- Department of Orthopaedic Surgery, University of Yamanashi, 1110, Shimokato, Chuo, Yamanashi, 409-3898, Japan
| | - Tetsuro Ohba
- Department of Orthopaedic Surgery, University of Yamanashi, 1110, Shimokato, Chuo, Yamanashi, 409-3898, Japan.
| | - Shigeto Ebata
- Department of Orthopaedic Surgery, University of Yamanashi, 1110, Shimokato, Chuo, Yamanashi, 409-3898, Japan
| | - Hirotaka Haro
- Department of Orthopaedic Surgery, University of Yamanashi, 1110, Shimokato, Chuo, Yamanashi, 409-3898, Japan
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Alqatari S, Visevic R, Marshall N, Ryan J, Murphy G. An unexpected cause of sacroiliitis in a patient with gout and chronic psoriasis with inflammatory arthritis: a case report. BMC Musculoskelet Disord 2018; 19:126. [PMID: 29678187 PMCID: PMC5909229 DOI: 10.1186/s12891-018-2044-4] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/05/2017] [Accepted: 04/10/2018] [Indexed: 11/25/2022] Open
Abstract
Background Inflammatory back pain is a condition characterized by inflammation of the sacroiliac joints and lower spine. It is frequently seen in patients with spondyloarthropathies like ankylosing spondylitis, psoriatic arthritis, enteropathic arthritis and reactive arthritis. Inflammatory back pain can be caused by many other conditions like infection and crystal deposition such as gout. In this case, it is difficult to specifically identify gout as a cause by ordinary imaging like magnetic resonance imaging (MRI) or ultrasound. Case presentation This case report describes a young man with severe psoriasis, presumptive psoriatic spondyloarthropathy and chronic extensive tophaceous gout which was difficult to treat because of non-compliance with medications and lifestyle. He presented with inflammatory type low back and buttocks pain with raised inflammatory markers. MRI of the lower back and sacroiliac joints showed features of active sacroiliitis. He was subsequently treated with a Tumor Necrosis Factor (TNF) alpha inhibitor for presumed axial psoriatic arthritis and had no significant benefit. Two attempts DECT of the lumbar spine was not executed correctly. CT lumbar spine and SIJs showed L2/3 endplate and left SIJ erosions mostly related to gout. Rasburicase was introduced. The tophi decreased in size peripherally with marginal improvement in back pain. From this study, we want to bring to the attention of physicians that gout can lead to back pain with inflammatory changes on MRI. We also want to address the importance of other imaging modalities if the cause of the back pain is not clear. Conclusion This case is meant to highlight an important but overlooked cause of active sacroililitis and inflammatory type back pain in patients who have gout, and to bring to the attention that plain X-ray, MRI and ultrasound cannot differentiate between inflammatory sacroiliitis caused by seronegative arthritis versus gouty arthritis. CT scan can add more information but DECT is the preferred method for differentiation and identification of axial tophaceous gout.
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Affiliation(s)
- Safi Alqatari
- Royal College of Physicians of Ireland, Cork University Hospital, Cork, Ireland. .,Rheumatology Department, Cork University Hospital, Cork, Ireland.
| | - Roberta Visevic
- Rheumatology Department, Cork University Hospital, Cork, Ireland
| | - Nina Marshall
- Radiology Department, Cork University Hospital, Cork, Ireland
| | - John Ryan
- Rheumatology Department, Cork University Hospital, Cork, Ireland
| | - Grainne Murphy
- Rheumatology Department, Cork University Hospital, Cork, Ireland
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George E, Guenette JP, Lee TC. Introduction to Neuroimaging. Am J Med 2018; 131:346-356. [PMID: 29191488 DOI: 10.1016/j.amjmed.2017.11.014] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/28/2017] [Revised: 11/07/2017] [Accepted: 11/10/2017] [Indexed: 12/14/2022]
Abstract
Primary care physicians are often tasked with evaluating neurologic symptoms, and imaging plays a critical role in neurologic diagnoses. Neuroradiology routinely employs advanced imaging modalities, and hence, determination of the appropriate imaging test and interpretation of findings in the clinical context can understandably be overwhelming. In this review article, we introduce resources that can guide physicians in the selection of neuroimaging tests and summarize guidelines on contrast agent administration. Key concepts on imaging techniques and terminology are reviewed, as is relevant for the primary care physician. We then present an overview of the typical imaging manifestations of brain pathologies, including stroke, traumatic injuries, infections, demyelinating and neurodegenerative processes, and neoplasms. Spine imaging is often considered for the evaluation of degenerative, infectious, or neoplastic etiologies, and the typical imaging findings in these scenarios are also summarized.
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Affiliation(s)
- Elizabeth George
- Department of Radiology, Brigham and Women's Hospital, Boston, Mass.
| | | | - Thomas C Lee
- Department of Radiology, Brigham and Women's Hospital, Boston, Mass
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Bureta C, Tominaga H, Yamamoto T, Setoguchi T, Kawamura H, Nagano S, Kawamura I, Abematsu M, Kakoi H, Ishidou Y, Komiya S. Lumbar spine epidural abscess and facet joint septic arthritis due to Streptococcus agalactiae: a case report. BMC Surg 2018. [PMID: 29534714 PMCID: PMC5851089 DOI: 10.1186/s12893-018-0350-2] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
Background Here we report a rare case of lumbar spine epidural abscess and facet joint septic arthritis caused by Streptococcus agalactiae, which had spread to the iliopsoas muscles, leading to urine retention. Case presentation A 68-year-old woman with low back pain experienced a sudden onset of bilateral lower limb weakness, it was followed 14 days later by urine retention. At consultation, magnetic resonance imaging and identification of serum β-hemolytic streptococci provided a diagnosis of Streptococcus agalactiae infection. She was started on antibiotics. Despite diminishing signs of inflammation, preoperative MRI showed an epidural mass at T12-L4 compressing the cord and involving the paravertebral muscles as well. Group B beta-hemolytic streptococci were detected in both urine and blood. Because of bilateral lower limb weakness and urine retention, T12-L4 hemilaminectomy was performed. The L3/L4 intertransverse ligament resected and abscess drained. Histopathology revealed that inflammatory cells had invaded the facet joint. Group B beta-hemolytic streptococci were identified, confirming the diagnosis. The patient continued with the antibiotics postoperatively, and her health rapidly improved. Conclusion Lumbar spine epidural abscess and facet joint septic arthritis caused by Streptococcus agalactiae is a clinical emergency, with significant morbidity and mortality especially with delayed diagnosis. A delay in both diagnosis and aggressive treatment can lead to not only severe neurological deficit but also to septicaemia, multiorgan failure, and even death.
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Affiliation(s)
- Costansia Bureta
- Department of Orthopaedic Surgery, Graduate School of Medical and Dental Sciences, Kagoshima University, 8-35-1 Sakuragaoka, Kagoshima, 890-8520, Japan. .,Department of Neurosurgery, Muhimbili Orthopaedic and Neurosurgical Institute, P.O. Box 65474, Dar es Salaam, Tanzania.
| | - Hiroyuki Tominaga
- Department of Orthopaedic Surgery, Graduate School of Medical and Dental Sciences, Kagoshima University, 8-35-1 Sakuragaoka, Kagoshima, 890-8520, Japan
| | - Takuya Yamamoto
- Department of Orthopaedic Surgery, Graduate School of Medical and Dental Sciences, Kagoshima University, 8-35-1 Sakuragaoka, Kagoshima, 890-8520, Japan
| | - Takao Setoguchi
- The Near-Future Locomotor Organ Medicine Creation Course (Kusunoki Kai), Graduate School of Medical and Dental Sciences, Kagoshima University, Kagoshima, Japan
| | - Hideki Kawamura
- Division of Medical and Environmental Safety, Kagoshima University Medical and Dental Hospital, Kagoshima, Japan
| | - Satoshi Nagano
- Department of Orthopaedic Surgery, Graduate School of Medical and Dental Sciences, Kagoshima University, 8-35-1 Sakuragaoka, Kagoshima, 890-8520, Japan
| | - Ichiro Kawamura
- Department of Orthopaedic Surgery, Graduate School of Medical and Dental Sciences, Kagoshima University, 8-35-1 Sakuragaoka, Kagoshima, 890-8520, Japan
| | - Masahiko Abematsu
- Department of Orthopaedic Surgery, Graduate School of Medical and Dental Sciences, Kagoshima University, 8-35-1 Sakuragaoka, Kagoshima, 890-8520, Japan
| | - Hironori Kakoi
- Department of Orthopaedic Surgery, Graduate School of Medical and Dental Sciences, Kagoshima University, 8-35-1 Sakuragaoka, Kagoshima, 890-8520, Japan
| | - Yasuhiro Ishidou
- Medical Joint Materials, Graduate School of Medical and Dental Sciences, Kagoshima University, Kagoshima, Japan
| | - Setsuro Komiya
- Department of Orthopaedic Surgery, Graduate School of Medical and Dental Sciences, Kagoshima University, 8-35-1 Sakuragaoka, Kagoshima, 890-8520, Japan
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