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Powell JE, Lee VK, Parikh SS, Nowalk AJ, Shah AJ. MRI features distinguishing pediatric Lyme arthritis from septic arthritis. Skeletal Radiol 2024:10.1007/s00256-024-04804-2. [PMID: 39373749 DOI: 10.1007/s00256-024-04804-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/10/2024] [Revised: 09/08/2024] [Accepted: 09/14/2024] [Indexed: 10/08/2024]
Abstract
OBJECTIVE This study aims to identify distinguishing MRI features of Lyme arthritis (LA), an increasingly prevalent cause of pediatric infectious arthritis in the USA, to enable rapid discrimination from septic arthritis (SA) and facilitate appropriate management. MATERIALS AND METHODS A single-center, retrospective analysis was conducted on a convenience sample of pediatric patients with LA in an endemic area using EPIC electronic health record data between January 2010 and December 2020. Patients with positive serologic testing and concurrent MRI were selected. MRI scans were reviewed by a subspecialty-trained pediatric radiologist. Key MRI features analyzed include joint effusion, synovitis, myositis, soft tissue edema, and osseous edema and erosions. MRI features, demographics, and clinical data were compared using univariable and multivariable analyses. RESULTS Fifty cases of knee LA and 13 cases of knee SA were included. Larger joint effusion (p = 0.0055, z = - 2.779) and abnormally thickened synovium (p = 0.0011, χ2 = 10.622) were more associated with LA. In contrast, increased myositis, subcutaneous edema, and osseous changes were more prevalent in SA. Abnormal bone marrow signal (p < 0.0001, χ2 = 36.893) and bone erosion (p < 0.0001, χ2 = 25.506) were observed in 84.6% (11/13) and 46.2% (6/13) of SA cases, respectively, while no bone erosion was found in LA. CONCLUSION MRI can be a valuable tool in differentiating LA from SA. Abnormal synovium and increasing joint effusion favor LA, while increasing soft tissue edema and osseous changes favor SA. Notably, the presence of bone erosion effectively excluded LA from consideration.
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Affiliation(s)
- Joshua E Powell
- Department of Radiology, Division of Musculoskeletal Imaging, Harvard Medical School, Massachusetts General Hospital, Boston, MA, USA.
| | - Vincent K Lee
- Department of Bioengineering, Swanson School of Engineering, University of Pittsburgh, Pittsburgh, PA, USA
- Department of Radiology, UPMC Children's Hospital of Pittsburgh, Pittsburgh, PA, USA
| | - Suraj S Parikh
- Department of Radiology, University of Pittsburgh Medical Center, Pittsburgh, PA, USA
| | - Andrew J Nowalk
- Department of Pediatrics, Division of Pediatric Infectious Diseases, UPMC Children's Hospital of Pittsburgh, Pittsburgh, PA, USA
| | - Amisha J Shah
- Department of Radiology, UPMC Children's Hospital of Pittsburgh, Pittsburgh, PA, USA
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2
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Feng W, Wang Q, Yao Z, Zhu D, Song B, Zhang X. Analysis of poor prognostic factors for septic arthritis of the hip in children: a case series of 76 patients. J Pediatr Orthop B 2024; 33:379-386. [PMID: 38047567 DOI: 10.1097/bpb.0000000000001148] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/05/2023]
Abstract
The clinical characteristics, treatment and outcomes of children with septic arthritis of the hip in our hospital were analyzed to identify the risk factors for a poor prognosis. The clinical data of 76 children with septic arthritis of the hip who were treated at our hospital from January 2010 to December 2020 were retrospectively analyzed. According to the most recent follow-up data, the patients were classified as good prognosis or poor prognosis. The differences between the two groups were analyzed. From January 2010 to December 2020, a total of 76 children with septic arthritis of the hip were admitted to our hospital, comprising 52 (68.4%) with a good prognosis and 24 (31.6%) with a poor prognosis. The risk of a poor prognosis was significantly higher in the group with time from onset to surgery >22 days than in the group with time from onset to surgery <11 days. The risk of poor prognosis in the group with C-reactive protein (CRP) > 100 mg/L was significantly higher than that in the group with CRP < 20 mg/L. Time from onset to surgery >14 days and CRP > 93 mg/L were the cutoff values for a poor prognosis. Significant elevation of CRP and prolonged time from onset to surgery in children with septic arthritis of the hip are risk factors for a poor prognosis. Early diagnosis and effective treatment are very important because delays in these factors can lead to a poor prognosis. Level of Evidence: Level II, retrospective study.
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Affiliation(s)
- Wei Feng
- Department of Orthopedics, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing, China
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3
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Marin JR, Lyons TW, Claudius I, Fallat ME, Aquino M, Ruttan T, Daugherty RJ. Optimizing Advanced Imaging of the Pediatric Patient in the Emergency Department: Technical Report. Pediatrics 2024; 154:e2024066855. [PMID: 38932719 DOI: 10.1542/peds.2024-066855] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 03/28/2024] [Indexed: 06/28/2024] Open
Abstract
Advanced diagnostic imaging modalities, including ultrasonography, computed tomography, and magnetic resonance imaging, are key components in the evaluation and management of pediatric patients presenting to the emergency department. Advances in imaging technology have led to the availability of faster and more accurate tools to improve patient care. Notwithstanding these advances, it is important for physicians, physician assistants, and nurse practitioners to understand the risks and limitations associated with advanced imaging in children and to limit imaging studies that are considered low value, when possible. This technical report provides a summary of imaging strategies for specific conditions where advanced imaging is commonly considered in the emergency department. As an accompaniment to the policy statement, this document provides resources and strategies to optimize advanced imaging, including clinical decision support mechanisms, teleradiology, shared decision-making, and rationale for deferred imaging for patients who will be transferred for definitive care.
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Affiliation(s)
- Jennifer R Marin
- Departments of Pediatrics, Emergency Medicine, & Radiology, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania
| | - Todd W Lyons
- Division of Emergency Medicine, Harvard Medical School, Boston Children's Hospital, Boston, Massachusetts
| | - Ilene Claudius
- Department of Emergency Medicine, Harbor-UCLA Medical Center, Torrance, California
| | - Mary E Fallat
- The Hiram C. Polk, Jr Department of Surgery, University of Louisville School of Medicine, Norton Children's Hospital, Louisville, Kentucky
| | - Michael Aquino
- Cleveland Clinic Imaging Institute, and Section of Pediatric Imaging, Cleveland Clinic Lerner College of Medicine of Case Western University, Cleveland Clinic Children's Hospital, Cleveland, Ohio
| | - Timothy Ruttan
- Department of Pediatrics, Dell Medical School, The University of Texas at Austin; US Acute Care Solutions, Canton, Ohio
| | - Reza J Daugherty
- Departments of Radiology and Pediatrics, University of Virginia School of Medicine, UVA Health/UVA Children's, Charlottesville, Virginia
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Marin JR, Lyons TW, Claudius I, Fallat ME, Aquino M, Ruttan T, Daugherty RJ. Optimizing Advanced Imaging of the Pediatric Patient in the Emergency Department: Technical Report. J Am Coll Radiol 2024; 21:e37-e69. [PMID: 38944445 DOI: 10.1016/j.jacr.2024.03.016] [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: 07/01/2024]
Abstract
Advanced diagnostic imaging modalities, including ultrasonography, computed tomography, and magnetic resonance imaging (MRI), are key components in the evaluation and management of pediatric patients presenting to the emergency department. Advances in imaging technology have led to the availability of faster and more accurate tools to improve patient care. Notwithstanding these advances, it is important for physicians, physician assistants, and nurse practitioners to understand the risks and limitations associated with advanced imaging in children and to limit imaging studies that are considered low value, when possible. This technical report provides a summary of imaging strategies for specific conditions where advanced imaging is commonly considered in the emergency department. As an accompaniment to the policy statement, this document provides resources and strategies to optimize advanced imaging, including clinical decision support mechanisms, teleradiology, shared decision-making, and rationale for deferred imaging for patients who will be transferred for definitive care.
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Affiliation(s)
- Jennifer R Marin
- Departments of Pediatrics, Emergency Medicine, & Radiology, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania.
| | - Todd W Lyons
- Division of Emergency Medicine, Harvard Medical School, Boston Children's Hospital, Boston, Massachusetts
| | - Ilene Claudius
- Department of Emergency Medicine, Harbor-UCLA Medical Center, Torrance, California
| | - Mary E Fallat
- The Hiram C. Polk, Jr Department of Surgery, University of Louisville School of Medicine, Norton Children's Hospital, Louisville, Kentucky
| | - Michael Aquino
- Cleveland Clinic Imaging Institute, and Section of Pediatric Imaging, Cleveland Clinic Lerner College of Medicine of Case Western University, Cleveland Clinic Children's Hospital, Cleveland, Ohio
| | - Timothy Ruttan
- Department of Pediatrics, Dell Medical School, The University of Texas at Austin; US Acute Care Solutions, Canton, Ohio
| | - Reza J Daugherty
- Departments of Radiology and Pediatrics, University of Virginia School of Medicine, UVA Health/UVA Children's, Charlottesville, Virginia
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5
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Liu Y, Chen L, Fan M, Zhang T, Chen J, Li X, Lv Y, Zheng P, Chen F, Sun G. Application of AI-assisted MRI for the identification of surgical target areas in pediatric hip and periarticular infections. BMC Musculoskelet Disord 2024; 25:428. [PMID: 38824518 PMCID: PMC11143611 DOI: 10.1186/s12891-024-07548-1] [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: 11/21/2023] [Accepted: 05/27/2024] [Indexed: 06/03/2024] Open
Abstract
OBJECTIVE To develop an AI-assisted MRI model to identify surgical target areas in pediatric hip and periarticular infections. METHODS A retrospective study was conducted on the pediatric patients with hip and periarticular infections who underwent Magnetic Resonance Imaging(MRI)examinations from January 2010 to January 2023 in three hospitals in China. A total of 7970 axial Short Tau Inversion Recovery (STIR) images were selected, and the corresponding regions of osteomyelitis (label 1) and abscess (label 2) were labeled using the Labelme software. The images were randomly divided into training group, validation group, and test group at a ratio of 7:2:1. A Mask R-CNN model was constructed and optimized, and the performance of identifying label 1 and label 2 was evaluated using receiver operating characteristic (ROC) curves. Calculation of the average time it took for the model and specialists to process an image in the test group. Comparison of the accuracy of the model in the interpretation of MRI images with four orthopaedic surgeons, with statistical significance set at P < 0.05. RESULTS A total of 275 patients were enrolled, comprising 197 males and 78 females, with an average age of 7.10 ± 3.59 years, ranging from 0.00 to 14.00 years. The area under curve (AUC), accuracy, sensitivity, specificity, precision, and F1 score for the model to identify label 1 were 0.810, 0.976, 0.995, 0.969, 0.922, and 0.957, respectively. The AUC, accuracy, sensitivity, specificity, precision, and F1 score for the model to identify label 2 were 0.890, 0.957, 0.969, 0.915, 0.976, and 0.972, respectively. The model demonstrated a significant speed advantage, taking only 0.2 s to process an image compared to average 10 s required by the specialists. The model identified osteomyelitis with an accuracy of 0.976 and abscess with an accuracy of 0.957, both statistically better than the four orthopaedic surgeons, P < 0.05. CONCLUSION The Mask R-CNN model is reliable for identifying surgical target areas in pediatric hip and periarticular infections, offering a more convenient and rapid option. It can assist unexperienced physicians in pre-treatment assessments, reducing the risk of missed and misdiagnosis.
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Affiliation(s)
- Yuwen Liu
- Department of Orthopaedic Surgery, Children's Hospital of Nanjing Medical University, Nanjing, China
| | - Lingyu Chen
- Department of Computer Science and Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing, China
| | - Mingjie Fan
- Department of Orthopaedic Surgery, Children's Hospital of Nanjing Medical University, Nanjing, China
| | - Tao Zhang
- Department of Orthopaedic Surgery, Qinghai Women's and Children's Hospital, Xining, China
| | - Jie Chen
- Department of Orthopaedic Surgery, Wuxi Children's Hospital, Wuxi, China
| | - Xiaohui Li
- Department of Radiology, Children's Hospital of Nanjing Medical University, Nanjing, China
| | - Yunhao Lv
- Department of Computer Science and Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing, China
| | - Pengfei Zheng
- Department of Orthopaedic Surgery, Children's Hospital of Nanjing Medical University, Nanjing, China.
| | - Fang Chen
- Department of Computer Science and Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing, China.
| | - Guixin Sun
- Department of Traumatic Surgery, Shanghai East Hospital, Nanjing Medical University, Shanghai, China.
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6
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Cools J, Ghijselings S, Ruythooren F, Jentjens S, Noppe N, Metsemakers WJ, Vles G. Advanced imaging shows extra-articular abscesses in two out of three adult patients with septic arthritis of the native hip joint. J Bone Jt Infect 2024; 9:27-35. [PMID: 38601001 PMCID: PMC11002917 DOI: 10.5194/jbji-9-27-2024] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/28/2023] [Accepted: 12/07/2023] [Indexed: 04/12/2024] Open
Abstract
Background: Septic arthritis (SA) of the native adult hip is a rare orthopaedic emergency requiring prompt diagnosis and treatment. As clinical presentation and laboratory findings are frequently atypical, advanced imaging is often requested. This retrospective study aimed to investigate the prevalence and pattern of extra-articular infectious manifestations and their implications for pre-operative advanced imaging in patients with proven SA of the native hip joint. Methods: Out of 41 patients treated surgically for SA of the native hip during a 16-year period at our tertiary referral hospital, 25 received advanced imaging (computed tomography (CT), magnetic resonance imaging (MRI), or fluorodeoxyglucose positron emission tomography (FDG PET-CT)) prior to initial intervention. For each investigation, a specific set of variables was systematically interpreted, and the most suitable surgical approach was determined. The prognostic value was evaluated by comparing specific outcome measures and the extent of extra-articular involvement. Results: It was found that 32 % of patients had an abscess in one anatomical region, 32 % of patients had abscesses in multiple anatomical regions, and only 36 % of patients had no substantial abscess. Gluteal abscesses were especially common in patients with SA due to contiguous spread. Abscesses in the iliopsoas region were more common in patients with SA due to hematogenous seeding. A combination of several different surgical approaches was deemed necessary to adequately deal with the various presentations. No significant prognostic factors could be identified. Conclusion: We recommend performing advanced imaging in patients with suspected or proven septic arthritis of the native hip joint, as extra-articular abscesses are present in 64 % and might require varying anatomical approaches.
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Affiliation(s)
- Jordi Cools
- Department of Orthopaedic Surgery, University Hospitals Leuven – Gasthuisberg, Leuven, Belgium
- Institute for Orthopaedic Research and Training (IORT), Catholic University Leuven, Leuven, Belgium
| | - Stijn Ghijselings
- Department of Orthopaedic Surgery, University Hospitals Leuven – Gasthuisberg, Leuven, Belgium
- Institute for Orthopaedic Research and Training (IORT), Catholic University Leuven, Leuven, Belgium
| | - Fred Ruythooren
- Department of Orthopaedic Surgery, University Hospitals Leuven – Gasthuisberg, Leuven, Belgium
- Institute for Orthopaedic Research and Training (IORT), Catholic University Leuven, Leuven, Belgium
| | - Sander Jentjens
- Department of Nuclear Medicine, University Hospitals Leuven – Gasthuisberg, Leuven, Belgium
| | - Nathalie Noppe
- Department of Radiology, University Hospitals Leuven – Gasthuisberg, Leuven, Belgium
| | - Willem-Jan Metsemakers
- Department of Trauma Surgery, University Hospitals Leuven – Gasthuisberg, Leuven, Belgium
- Department of Development and Regeneration, KU Leuven, Leuven, Belgium
| | - Georges Vles
- Department of Orthopaedic Surgery, University Hospitals Leuven – Gasthuisberg, Leuven, Belgium
- Institute for Orthopaedic Research and Training (IORT), Catholic University Leuven, Leuven, Belgium
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7
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Woods CR, Bradley JS, Chatterjee A, Kronman MP, Arnold SR, Robinson J, Copley LA, Arrieta AC, Fowler SL, Harrison C, Eppes SC, Creech CB, Stadler LP, Shah SS, Mazur LJ, Carrillo-Marquez MA, Allen CH, Lavergne V. Clinical Practice Guideline by the Pediatric Infectious Diseases Society (PIDS) and the Infectious Diseases Society of America (IDSA): 2023 Guideline on Diagnosis and Management of Acute Bacterial Arthritis in Pediatrics. J Pediatric Infect Dis Soc 2024; 13:1-59. [PMID: 37941444 DOI: 10.1093/jpids/piad089] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/09/2023] [Accepted: 10/27/2023] [Indexed: 11/10/2023]
Abstract
This clinical practice guideline for the diagnosis and treatment of acute bacterial arthritis (ABA) in children was developed by a multidisciplinary panel representing the Pediatric Infectious Diseases Society (PIDS) and the Infectious Diseases Society of America (IDSA). This guideline is intended for use by healthcare professionals who care for children with ABA, including specialists in pediatric infectious diseases and orthopedics. The panel's recommendations for the diagnosis and treatment of ABA are based upon evidence derived from topic-specific systematic literature reviews. Summarized below are the recommendations for the diagnosis and treatment of ABA in children. The panel followed a systematic process used in the development of other IDSA and PIDS clinical practice guidelines, which included a standardized methodology for rating the certainty of the evidence and strength of recommendation using the GRADE approach (Grading of Recommendations Assessment, Development and Evaluation) (see Figure 1). A detailed description of background, methods, evidence summary and rationale that support each recommendation, and knowledge gaps can be found online in the full text.
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Affiliation(s)
- Charles R Woods
- Department of Pediatrics, University of Tennessee Health Sciences Center College of Medicine Chattanooga, Chattanooga, Tennessee
| | - John S Bradley
- Division of Infectious Diseases, Department of Pediatrics, University of California San Diego, School of Medicine, and Rady Children's Hospital, San Diego, California
| | - Archana Chatterjee
- Chicago Medical School, Rosalind Franklin University of Medicine and Science, North Chicago, Illinois
| | - Matthew P Kronman
- Division of Pediatric Infectious Diseases, University of Washington, Seattle Children's Hospital, Seattle, Washington
| | - Sandra R Arnold
- Division of Infectious Diseases, University of Tennessee Health Science Center, Memphis, Tennessee
| | - Joan Robinson
- Department of Pediatrics, University of Alberta, Edmonton, Alberta, Canada
| | - Lawson A Copley
- Departments of Orthopaedic Surgery and Pediatrics, University of Texas Southwestern, Dallas, Texas
| | - Antonio C Arrieta
- Division of Infectious Diseases, Children's Hospital of Orange County and University of California, Irvine, California
| | - Sandra L Fowler
- Division of Infectious Diseases, Department of Pediatrics, Medical University of South Carolina, Charleston, South Carolina, USA
| | | | | | - C Buddy Creech
- Division of Pediatric Infectious Diseases, Vanderbilt University School of Medicine, Nashville, Tennessee
| | - Laura P Stadler
- Department of Pediatrics, Division of Infectious Diseases, University of Kentucky, Lexington, Kentucky
| | - Samir S Shah
- Division of Hospital Medicine, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio
| | - Lynnette J Mazur
- Department of Pediatrics, University of Texas McGovern Medical School, Houston, Texas
| | - Maria A Carrillo-Marquez
- Division of Infectious Diseases, University of Tennessee Health Science Center, Memphis, Tennessee
| | - Coburn H Allen
- Department of Pediatrics, University of Texas at Austin Dell Medical School, Austin, Texas
| | - Valéry Lavergne
- Department of Medical Microbiology and Infection Control, Vancouver General Hospital, Vancouver, British Columbia, Canada
- University of Montreal Research Center, Montreal, Quebec, Canada
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Valisena S, De Marco G, Cochard B, Di Laura Frattura G, Bazin L, Vazquez O, Steiger C, Dayer R, Ceroni D. Is the emergency MRI protocol for acute pediatric osteoarticular infection a luxury or an absolute priority? Front Pediatr 2023; 11:1328870. [PMID: 38155738 PMCID: PMC10753816 DOI: 10.3389/fped.2023.1328870] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/27/2023] [Accepted: 12/01/2023] [Indexed: 12/30/2023] Open
Affiliation(s)
- Silvia Valisena
- Pediatric Orthopedics Unit, Pediatric Surgery Service, Geneva University Hospitals, Geneva, Switzerland
- Division of Orthopedics and Trauma Surgery, Geneva University Hospitals, Geneva, Switzerland
| | - Giacomo De Marco
- Pediatric Orthopedics Unit, Pediatric Surgery Service, Geneva University Hospitals, Geneva, Switzerland
| | - Blaise Cochard
- Pediatric Orthopedics Unit, Pediatric Surgery Service, Geneva University Hospitals, Geneva, Switzerland
- Division of Orthopedics and Trauma Surgery, Geneva University Hospitals, Geneva, Switzerland
| | - Giorgio Di Laura Frattura
- Pediatric Orthopedics Unit, Pediatric Surgery Service, Geneva University Hospitals, Geneva, Switzerland
| | - Ludmilla Bazin
- Pediatric Orthopedics Unit, Pediatric Surgery Service, Geneva University Hospitals, Geneva, Switzerland
| | - Oscar Vazquez
- Pediatric Orthopedics Unit, Pediatric Surgery Service, Geneva University Hospitals, Geneva, Switzerland
| | - Christina Steiger
- Pediatric Orthopedics Unit, Pediatric Surgery Service, Geneva University Hospitals, Geneva, Switzerland
| | - Romain Dayer
- Pediatric Orthopedics Unit, Pediatric Surgery Service, Geneva University Hospitals, Geneva, Switzerland
| | - Dimitri Ceroni
- Pediatric Orthopedics Unit, Pediatric Surgery Service, Geneva University Hospitals, Geneva, Switzerland
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Hachem A, Copley LAB. What's New in Pediatric Septic Arthritis? A Review of Pertinent Clinical Questions. J Pediatr Orthop 2023; 43:578-583. [PMID: 37332197 DOI: 10.1097/bpo.0000000000002453] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 06/20/2023]
Abstract
BACKGROUND The evaluation and treatment of children with septic arthritis (SA) is challenging and requires an organized approach to address the spectrum of pathogens which appear to aggregate in age-specific groups. Although evidence-based guidelines have recently been published for the evaluation and treatment of children with acute hematogenous osteomyelitis, there is a relative dearth of literature devoted exclusively to SA. METHODS Recently published guidance for the evaluation and treatment of children with SA was reviewed and evaluated with respect to pertinent clinical questions to summarize what is new in this area of practice for pediatric orthopaedic surgeons. RESULTS Evidence suggests that there is a profound difference between children with primary SA and those who have contiguous osteomyelitis. This disruption of the commonly accepted paradigm of a continuum of osteoarticular infections has important implications in the evaluation and treatment of children with primary SA. Clinical prediction algorithms have been established to help determine the applicability of magnetic resonance imaging during the evaluation of children suspected to have SA. Antibiotic duration for SA has been recently studied with some evidence in favor of short-course parenteral followed by short-course oral therapy may be successful if the pathogen is not methicillin-resistant Staphylococcus aureus . CONCLUSION Recent studies of children with SA have provided better guidance for evaluation and treatment to improve diagnostic accuracy, processes of evaluation, and clinical outcomes. LEVEL OF EVIDENCE Level 4.
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Affiliation(s)
- Ahmad Hachem
- Department of Pediatrics, College of Medicine-Jacksonville, University of Florida, Jacksonville, FL
| | - Lawson A B Copley
- Department of Orthopaedic Surgery and Pediatrics, University of Texas Southwestern, Dallas, TX
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10
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Danilov C, Fernandez FF, Wirth T, Eberhardt O. Relevant factors in the diagnosis of concomitant osteomyelitis in pediatric hip septic arthritis. A series of 41 cases treated by hip arthroscopy. Arch Orthop Trauma Surg 2023; 143:1825-1832. [PMID: 35152332 DOI: 10.1007/s00402-022-04371-y] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/06/2021] [Accepted: 01/25/2022] [Indexed: 11/25/2022]
Abstract
INTRODUCTION Septic arthritis of the hip can appear isolated or concomitant with pelvic osteomyelitis. Delay in the diagnosis of a concomitant osteomyelitis increases the number of required surgeries and of possible complications. PURPOSE This study aims to establish relevant factors in the diagnosis of concomitant osteomyelitis in cases with septic arthritis of the hip among paediatric patients. METHODS The data were collected between 2005 and 2020. 41 pediatric patients with suspicion of septic arthritis of the hip joint, treated arthroscopically, were included. The following diagnostic test parameters were collected: ultrasound, MRI, X-Rays, blood samples, temperature, and incapacity to bear weight. The data were analysed with the sensitive analysis method using descriptive statistic. RESULTS 41 patients were analyzed, with an average age of 6.04 y (7 months to 14 years), of which ten patients (24.39%) presented concomitant osteomyelitis. 6 out of ten patients needed secondary surgery. Regarding age, concomitant osteomyelitis was most common in the age group 4-14 years old. Average number of days of clinical symptoms before admission was 6.2 days. 36/41 cases showed CRP values higher than 2 mg/dl. 9/10 cases with concomitant osteomyelitis showed a CRP > 2 mg/dl, with an average value of 8.9 mg/dl. 22/41 patients underwent an MRI, of which nine cases presented a concomitant osteomyelitis. The probability of a child to have septic arthritis of the hip with adjacent osteomyelitis was analysed through a score based on four factors: impossibility to bear weight and/or hip pain in children in the non-walking age category, CRP > 2 mg/dl, age older than > 4 y, symptoms longer than 4 days. CONCLUSIONS Children at the age of walking, with incapacity to bear weight, presenting symptoms longer than 4 days and a CRP > 2 mg/dl, should receive an MRI before surgery to exclude adjacent osteomyelitis. LEVEL OF EVIDENCE IV.
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Affiliation(s)
- Cezara Danilov
- Orthopaedic Department, Olgahospital Stuttgart, Kriegsbergstrasse 62, 70174, Stuttgart, Germany.
| | - F F Fernandez
- Orthopaedic Department, Olgahospital Stuttgart, Kriegsbergstrasse 62, 70174, Stuttgart, Germany
| | - T Wirth
- Orthopaedic Department, Olgahospital Stuttgart, Kriegsbergstrasse 62, 70174, Stuttgart, Germany
| | - O Eberhardt
- Orthopaedic Department, Olgahospital Stuttgart, Kriegsbergstrasse 62, 70174, Stuttgart, Germany
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11
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Shet NS, Iyer RS, Chan SS, Baldwin K, Chandra T, Chen J, Cooper ML, Creech CB, Gill AE, Levin TL, Moore MM, Nadel HR, Saidinejad M, Schooler GR, Squires JH, Swenson DW, Rigsby CK. ACR Appropriateness Criteria® Osteomyelitis or Septic Arthritis-Child (Excluding Axial Skeleton). J Am Coll Radiol 2022; 19:S121-S136. [PMID: 35550797 DOI: 10.1016/j.jacr.2022.02.017] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2022] [Accepted: 02/19/2022] [Indexed: 10/18/2022]
Abstract
Imaging plays an integral role in the evaluation of suspected musculoskeletal infections in children, not only in the accurate identification of infection such as osteomyelitis or septic arthritis, but also in guiding management. Various diagnostic modalities serve different purposes in the assessment of suspected pediatric musculoskeletal infections. The purpose of this document is to provide imaging guidance in the most frequently encountered clinical scenarios in which osteomyelitis and/or septic arthritis are suspected, outside of the axial skeleton. The American College of Radiology Appropriateness Criteria are evidence-based guidelines for specific clinical conditions that are reviewed annually by a multidisciplinary expert panel. The guideline development and revision include an extensive analysis of current medical literature from peer reviewed journals and the application of well-established methodologies (RAND/UCLA Appropriateness Method and Grading of Recommendations Assessment, Development, and Evaluation or GRADE) to rate the appropriateness of imaging and treatment procedures for specific clinical scenarios. In those instances where evidence is lacking or equivocal, expert opinion.
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Affiliation(s)
- Narendra S Shet
- Children's National Hospital, Washington, District of Columbia.
| | - Ramesh S Iyer
- Panel Chair, Seattle Children's Hospital, Seattle, Washington; and Chair, SPCC (CoPLL)
| | - Sherwin S Chan
- Panel Vice-Chair, Vice Chair of Radiology, Children's Mercy Hospital, Kansas City, Missouri
| | - Keith Baldwin
- Associate Professor, Children's Hospital of Philadelphia, Philadelphia, Pennsylvania; American Academy of Orthopaedic Surgeons
| | - Tushar Chandra
- Magnetic Resonance Medical Director, Chief of Research, Chief of Medical Education, Co-director of 3D and Advanced Imaging Lab, Nemours Children's Hospital, Orlando, Florida
| | - Jimmy Chen
- University of Florida College of Medicine Jacksonville, Jacksonville, Florida; American Academy of Pediatrics
| | - Matthew L Cooper
- Pediatric Radiology Division Chief, Radiology Medical Director, Riley Hospital for Children, Indianapolis, Indiana
| | - C Buddy Creech
- Vanderbilt University Medical Center, Nashville, Tennessee; Infectious Diseases Society of America; and President, Pediatric Infectious Diseases Society
| | - Anne E Gill
- Children's Healthcare of Atlanta and Emory University, Atlanta, Georgia
| | - Terry L Levin
- The Children's Hospital at Montefiore, Albert Einstein College of Medicine, Bronx, New York; Chair ACR Pediatric Practice Parameters
| | - Michael M Moore
- Co-director, Division of Radiology Innovation and Value Enhancement (DRIVE), Penn State Health Children's Hospital, Hershey, Pennsylvania
| | - Helen R Nadel
- Lucile Packard Children's Hospital at Stanford, Stanford, California; Member Committee on Practice Parameters-Pediatric ACR; and Alternate to Senate Stanford University School of Medicine
| | - Mohsen Saidinejad
- UCLA Medical Center, Los Angeles, California; American College of Emergency Physicians; and Director, Institute for Health Services and Outcomes Research-The Lundquist Institute for Biomedical Innovation at Harbor UCLA
| | | | - Judy H Squires
- Chief of Ultrasound; Associate Program Director for Diagnostic Radiology, UPMC Children's Hospital of Pittsburgh, Pittsburgh, Pennsylvania
| | - David W Swenson
- Alpert Medical School of Brown University, Providence, Rhode Island
| | - Cynthia K Rigsby
- Specialty Chair, Department of Medical Imaging, Ann & Robert H. Lurie Children's Hospital of Chicago, Chicago, Illinois
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12
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Hunter S, Kioa G, Baker JF. Predictive Algorithms in the Diagnosis and Management of Pediatric Hip and Periarticular Infection. J Bone Joint Surg Am 2022; 104:649-658. [PMID: 35167503 DOI: 10.2106/jbjs.21.01040] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
➤ Although the criteria of Kocher et al. were an important advancement in our ability to diagnose septic arthritis of the hip early, the changing microbial landscape and availability of advanced imaging have rendered it insufficient for contemporary clinical use.➤ Routine use of magnetic resonance imaging and recognition of disseminated disease have prompted the development of algorithms to predict concurrent osteoarticular infection in cases of septic arthritis and osteomyelitis that were previously assumed to be "isolated."➤ Recent research has attempted to stratify childhood bone and joint infection (BJI) by severity to guide treatment planning. This is valuable, as patients with multifocal disease, more virulent pathogens, and immunocompromise can have longer hospital stays and require multiple surgeries.➤ The increasing prevalence of clinical prediction algorithms in childhood BJI is not completely matched by quality in methodology. Clinicians need to be wary of adopting predictive algorithms prior to robust external validation.
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Affiliation(s)
- Sarah Hunter
- Department of Orthopaedic Surgery, Waikato Hospital, Hamilton, New Zealand
| | - Georgina Kioa
- Department of Orthopaedic Surgery, Hawke's Bay Hospital, Hastings, New Zealand
| | - Joseph F Baker
- Department of Orthopaedic Surgery, Waikato Hospital, Hamilton, New Zealand
- Department of Surgery, University of Auckland, Auckland, New Zealand
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13
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Hartman NR, Gerard JM, Puryear A, Sethi A, Flood RG. Clinical Characteristics of Acute Hematogenous Osteomyelitis With and Without Subperiosteal Abscesses in the Acute Care Setting. Pediatr Emerg Care 2022; 38:e1224-e1228. [PMID: 35358150 DOI: 10.1097/pec.0000000000002683] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
BACKGROUND Acute hematogenous osteomyelitis (AHO) is a common pediatric disease that can progress to involve nearby structures leading to complications including subperiosteal abscesses (SPAs). Those with SPAs, in particular, often require surgical intervention for complete treatment. Staphylococcus aureus remains one of the most common causes of AHO. With the emergence of community-associated methicillin-resistant Ataphylococcus aureus and its propensity to form abscesses, there has been an observed increased frequency of AHO with SPAs in children. Although magnetic resonance imaging (MRI) remains the gold standard of imaging for AHO, it is not readily available on a 24/7 basis and often necessitates procedural sedation in children. Delay in MRI and surgical intervention in patients with SPAs may lead to increased complications. The goal of this study is to identify, using clinical features easily obtained in the acute care setting, patients at high risk for AHO with SPAs who may benefit from emergent MRI and/or surgical intervention. DESIGN/METHODS A retrospective chart review of patients aged birth to younger than 18 years diagnosed with AHO, who presented to a tertiary pediatric hospital from June 10, 2012, to November 1, 2017, were evaluated. Demographic, clinical, laboratory, and imaging data were collected. Patients were divided into 2 groups: AHO alone and AHO with SPAs. RESULTS A final cohort of 110 subjects were included and analyzed. Of these, 73 (66%) were identified as having AHO alone and 37 (33.6%) as having AHO with SPAs. Patients had a higher risk of AHO with SPAs if they had a history of fever, decreased range of motion, edema, or elevated laboratory studies including white blood cell, absolute neutrophil count, erythrocyte sedimentation rate, and C-reactive protein. C-reactive protein was shown to have the highest correlation of AHO with SPAs, with an optimal cut point of 10.3 mg/dL, yielding a sensitivity of 67.7% and specificity of 77.6%. Patients with AHO with SPAs were at higher risk of having a positive blood culture for methicillin-resistant Staphylococcus aureus. CONCLUSIONS Clinicians in acute care settings should have a high index of suspicion of AHO with SPAs in children with history of fever, decreased range of motion, or elevated laboratory values (white blood cell, absolute neutrophil count, erythrocyte sedimentation rate, and C-reactive protein). In particular, those with a significantly elevated CRP are at a higher risk for having AHO with SPAs in comparison with an uncomplicated AHO. However, with the significant overlap in historical and clinical variables in the initial presentations of children with AHO with and without SPAs, the clinical urgency in obtaining a magnetic resonance imaging must continue to be individualized based on overall clinical suspicion and availability of resources.
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Affiliation(s)
| | | | | | - Anchal Sethi
- Pediatrics, Saint Louis University School of Medicine, SSM Health Cardinal Glennon Children's Hospital, St Louis, MO
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14
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Donders CM, Spaans AJ, van Wering H, van Bergen CJA. Developments in diagnosis and treatment of paediatric septic arthritis. World J Orthop 2022; 13:122-130. [PMID: 35317401 PMCID: PMC8891656 DOI: 10.5312/wjo.v13.i2.122] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/26/2021] [Revised: 08/08/2021] [Accepted: 01/20/2022] [Indexed: 02/06/2023] Open
Abstract
Acute septic arthritis in children is an orthopaedic emergency. A delay in diagnosis and inappropriate treatment can result in devastating damage to the joint with lifelong disability as a consequence. The clinical presentation can be a diagnostic challenge, especially in young children. A recent systematic review showed that joint tenderness and fever are important signals of septic arthritis. Ultrasound is helpful in detecting the presence of a joint effusion. Plain radiographs may show bone changes but magnetic resonance imaging is the most reliable imaging study for detecting concomitant osteomyelitis. The diagnosis of acute septic arthritis is highly suggestive when pus is aspirated from the joint, in case of a positive culture or a positive gram stain of the joint fluid, or if there is a white blood-cell count in the joint fluid of more than 50000/mm3. Staphylococcus aureus is the most commonly cultured organism. Recent systematic reviews have identified the most effective drainage techniques, including needle aspiration, arthroscopy and arthrotomy, depending on the affected joint. After the drainage procedure it is important to monitor the clinical and laboratory outcomes. Additional drainage procedures may be necessary in select cases.
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Affiliation(s)
- Cornelia M Donders
- Department of Orthopaedic Surgery, Meander Medical Centre, Amersfoort 3813 TZ, Netherlands
| | - Anne J Spaans
- Department of Orthopaedic Surgery, Sint Maartenskliniek, Nijmegen 6574 NA, Netherlands
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15
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Klosterman MM, Villani MC, Hamilton EC, Jo C, Copley LA. Primary Septic Arthritis in Children Demonstrates Presumed and Confirmed Varieties Which Require Age-specific Evaluation and Treatment Strategies. J Pediatr Orthop 2022; 42:e27-e33. [PMID: 34560764 DOI: 10.1097/bpo.0000000000001976] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
BACKGROUND There is uncertainty involved in the evaluation and treatment of children suspected to have septic arthritis particularly when no causative pathogen is confirmed. This study evaluates children with primary septic arthritis to refine the processes of evaluation and treatment and improve the rate of pathogen confirmation. METHODS Children suspected to have septic arthritis from 2009 to 2019 were retrospectively studied. Diagnosis of primary septic arthritis, defined as hematogenous joint infection without associated osteomyelitis, was established by clinical evaluation, radiology and laboratory results, including joint fluid analysis. Excluded cases were categorized by etiology. Children with primary septic arthritis were divided into confirmed and presumed cohorts for statistical comparison. RESULTS A total of 355 children (average age 4.4 y, range 0.05 to 18 y) were initially treated as septic arthritis. Eighty-seven (24.5%) were excluded due to other conditions, including 34 (9.6%) with noninfectious conditions. Among 268 children with primary septic arthritis, 134 were confirmed and 134 were presumed. A higher rate of 16S polymerase chain reaction (PCR) acquisition (71.6% vs. 45.5%) occurred in the confirmed cohort. Overall yield for various methods of pathogen identification were 27 of 239 (11.3%) by blood culture, 83 of 268 (31.0%) by joint fluid culture and 85 of 157 (54.1%) by PCR. PCR identified a pathogen in 87.5% of children with confirmed septic arthritis. Antibiotic pretreatment was associated with a lower rate of joint fluid culture positivity. Pathogens aggregated within specific age groups. The 4 to 9-year-old age group displayed the widest spectrum of pathogens with limited predictability. CONCLUSIONS This study emphasizes the need for systematic processes of evaluation and treatment for children suspected to have primary septic arthritis, including minimization of antibiotic pretreatment, age-based empiric antibiotic selection, and sufficient follow-up to ensure noninfectious conditions are distinguished in culture-negative cases. Extended observation, before intervention, may be appropriate for some children. LEVEL OF EVIDENCE Level III-retrospective control study.
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Affiliation(s)
| | | | | | - Chanhee Jo
- Department of Orthopedics, Texas Scottish Rite Hospital for Children
| | - Lawson A Copley
- Children's Health System of Texas
- Department of Orthopedics, Texas Scottish Rite Hospital for Children
- Department of Orthopedics and Pediatrics, University of Texas Southwestern, Dallas, TX
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16
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McMichael BS, Nickel AJ, Christensen EW, Frenn KA, Truong WH, Laine JC, Kharbanda AB. Discriminative Accuracy of Procalcitonin and Traditional Biomarkers in Pediatric Acute Musculoskeletal Infection. Pediatr Emerg Care 2021; 37:e1220-e1226. [PMID: 32149993 DOI: 10.1097/pec.0000000000001978] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
OBJECTIVES Septic arthritis (SA) is responsible for 20% of pediatric musculoskeletal infections (MSKI) and can have significant consequences. Early detection of SA is critical, and procalcitonin (PCT) has emerged as a promising biomarker. This study assessed the test performance of PCT and traditional biomarkers for suspected SA. METHODS We conducted a prospective study at two pediatric emergency departments (ED). Data collected measured serum levels of C-reactive protein (CRP), erythrocyte sedimentation rate (ESR), white blood cell (WBC) count, and PCT. Box and whisker plots were generated to compare the of the biomarkers by positive MSKI or a non-MSKI diagnosis. The diagnostic performance of biomarkers was examined using the area under the receiver operating characteristic curve (AUC), and optimal cut -points were identified using the Liu method. RESULTS Procalcitonin performed reasonably well for detection of MSKI (AUC, 0.72; confidence interval [95% CI], 0.59-0.84). However, CRP and ESR performed better (AUC, 0.88 and 0.78, respectively). White blood cell count was not predictive of MSKI. Patients with a PCT value >0.1 ng/mL, ESR values >19.5 mm/h, and a temperature higher than 99.0°F were more than twice as likely to have acute MSKI. A high CRP level was most predictive of acute MSKI, and patients with levels >2.38 mg/dL were 3.5 times more likely to have acute MSKI. CONCLUSIONS Procalcitonin is a potential biomarker for the clinical differential of MSKI in the pediatric ED. Additional research is warranted to establish the optimal diagnostic level for PCT, to increase sample size, and to examine any impact on cost.
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Affiliation(s)
| | - Amanda J Nickel
- From the Children's Minnesota Research Institute, Children's Minnesota
| | - Eric W Christensen
- Health Services Management, College of Continuing and Professional Studies, University of Minnesota, Minneapolis
| | | | - Walter H Truong
- Department of Orthopedic Surgery, Gillette Children's Specialty Healthcare, St Paul
| | - Jennifer C Laine
- Department of Orthopedic Surgery, Gillette Children's Specialty Healthcare, St Paul
| | - Anupam B Kharbanda
- Department of Pediatric Emergency Medicine, Children's Minnesota, Minneapolis, MN
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17
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Predicting adjacent infections in pediatric septic arthritis: Do predictive criteria extrapolate across geographic regions?: Predicting Periarticular Infection in the Southeast. J Orthop 2021; 28:53-57. [PMID: 34840482 DOI: 10.1016/j.jor.2021.11.004] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/21/2021] [Revised: 09/08/2021] [Accepted: 11/03/2021] [Indexed: 11/20/2022] Open
Abstract
Purpose This study aims to assess previously determined predictive criteria for presence of adjacent infection in septic arthritis within a Southeastern United States (US) pediatric population. Results The sensitivity, specificity, positive predictive value, and negative predictive value of the Rosenfeld criteria were: 91.7%, 22.7%, 39.3%, and 83.3%, respectively. The patients with periarticular infection were more likely to have positive blood cultures than those with isolated septic arthritis. There was no difference in likelihood of secondary surgical intervention. Conclusions Previously defined criteria to predict adjacent infection in pediatric septic arthritis did not demonstrate external validity in a Southeastern US pediatric population.
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18
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Good JJ, Rabener MJ, Fisher GW. Using a decision tool to evaluate for osteomyelitis in children. JAAPA 2021; 34:29-32. [PMID: 34582383 DOI: 10.1097/01.jaa.0000750960.75057.e1] [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
ABSTRACT Osteomyelitis is a common occurrence in children and typically has a prolonged treatment course involving multiple specialties. Historically, the long bones are most commonly affected and Staphylococcus aureus is the primary causative organism.This case shows the value of using the Kocher criteria and acute phase reactant C-reactive protein as diagnostic tools that can be used to advocate MRI to rule out this potentially devastating process.
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Affiliation(s)
- Jason J Good
- Jason J. Good practices in the ED at Wright-Patterson Medical Center, Wright Patterson AFB, Ohio. Michael J. Rabener is program director of the US Air Force Emergency Medicine PA DSc residency at the San Antonio (Tex.) Military Medical Center. Geoffrey W. Fisher practices as a Battalion Flight Surgeon with the 2-10 Aviation Helicopter Battalion, 10th Calvary Brigade, Fort Drum, New York. The authors have disclosed no potential conflicts of interest, financial or otherwise
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19
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Hamilton EC, Villani MC, Klosterman MM, Jo C, Liu J, Copley LAB. Children with Primary Septic Arthritis Have a Markedly Lower Risk of Adverse Outcomes Than Those with Contiguous Osteomyelitis. J Bone Joint Surg Am 2021; 103:1229-1237. [PMID: 33844667 DOI: 10.2106/jbjs.20.01685] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
BACKGROUND It is widely believed that septic arthritis poses a risk of joint destruction and long-term adverse outcomes for children if not treated emergently. In the present study, children who had primary confirmed septic arthritis were compared with those who had septic arthritis and adjacent osteomyelitis to evaluate differences that affect the relative risk of adverse outcomes. METHODS Children who underwent multidisciplinary treatment for septic arthritis with or without contiguous osteomyelitis between 2009 and 2019 were retrospectively studied. Clinical, laboratory, treatment, and outcome data were compared between cohorts of children with primary confirmed septic arthritis and children with septic arthritis and contiguous osteomyelitis. RESULTS One hundred and thirty-four children had primary confirmed septic arthritis, and 105 children had septic arthritis with contiguous osteomyelitis. Children with osteomyelitis were older (median, 7.4 versus 2.4 years), had higher initial C-reactive protein (median, 15.7 versus 6.4 mg/dL), and had a higher rate of thrombocytopenia (21.0% versus 1.5%). They also had a higher rate of bacteremia (69.5% versus 20.2%) for a longer duration (median, 2.0 versus 1.0 days). Detected pathogens in children with osteomyelitis as compared with those with primary septic arthritis were more likely to be Staphylococcus aureus (77.1% versus 32.1%) and less likely to be Kingella kingae (2.9% versus 32.1%). Children with contiguous osteomyelitis had longer hospitalizations (median, 8.0 versus 4.0 days), a higher rate of intensive care (21.0% versus 1.5%), a higher readmission rate (17.1% versus 5.2%), and a higher complication rate (38.1% versus 0.7%). CONCLUSIONS Primary septic arthritis in children is dissimilar to septic arthritis associated with osteomyelitis. The present study demonstrates that long-term adverse outcomes in children with septic arthritis are likely due to the contiguous osteomyelitis. Children with primary septic arthritis are sufficiently distinguishable from those who have contiguous osteomyelitis to guide decisions for magnetic resonance imaging acquisition, duration of antibiotic therapy, and length of outpatient follow-up in order to recognize and address adverse outcomes. LEVEL OF EVIDENCE Prognostic Level III. See Instructions for Authors for a complete description of levels of evidence.
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Affiliation(s)
| | | | | | - Chanhee Jo
- Texas Scottish Rite Hospital for Children, Dallas, Texas
| | - Jie Liu
- Texas Scottish Rite Hospital for Children, Dallas, Texas
| | - Lawson A B Copley
- Children's Health System of Texas, Dallas, Texas.,Texas Scottish Rite Hospital for Children, Dallas, Texas.,University of Texas Southwestern, Dallas Texas
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20
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El-Sobky T, Mahmoud S. Acute osteoarticular infections in children are frequently forgotten multidiscipline emergencies: beyond the technical skills. EFORT Open Rev 2021; 6:584-592. [PMID: 34377550 PMCID: PMC8335954 DOI: 10.1302/2058-5241.6.200155] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
Abstract
Acute osteoarticular infections (AOI) should be treated as top emergencies. The first few days following the inception of infection are ultra-critical to long-term prognosis.A comprehensive road map for management of childhood AOI is still lacking despite recent advances in microbiology and imaging (magnetic resonance imaging). The many faces of childhood AOI warrant a multidiscipline approach to management.Laboratory and imaging findings of are still debatable and should not overshadow or delay a management plan based on the experienced physician's clinical judgment.Ample evidence-based practice supports the use of a few days of intravenous antibiotic administration followed by oral therapy until correlative clinical and basic laboratory (acute phase reactants) results improve.The growing body of evidence on 'high-risk' children/neonates of AOI warrants continual clinical extra-vigilance in identifying these patient subsets.Open drainage and debridement remain the mainstay of treatment of septic hips, whereas for other joints the use of alternative surgical techniques should be individualized or on case-by-case basis.Because the consequences of misdiagnosis of AOI are usually grave and permanent, proactive treatment/overtreatment is justified in the event of unconfirmed but suspicious diagnosis. Cite this article: EFORT Open Rev 2021;6:584-592. DOI: 10.1302/2058-5241.6.200155.
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Affiliation(s)
- Tamer El-Sobky
- Division of Paediatric Orthopaedics, Department of Orthopaedic Surgery, Faculty of Medicine, Ain Shams University, Cairo, Egypt
| | - Shady Mahmoud
- Division of Paediatric Orthopaedics, Department of Orthopaedic Surgery, Faculty of Medicine, Ain Shams University, Cairo, Egypt
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21
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Pain for Greater Than 4 Days Is Highly Predictive of Concomitant Osteomyelitis in Children With Septic Arthritis. J Pediatr Orthop 2021; 41:255-259. [PMID: 33577239 DOI: 10.1097/bpo.0000000000001771] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
BACKGROUND There is no evidence-based consensus on the risk factors for concomitant osteomyelitis and septic arthritis. The purpose of this study was to investigate clinical parameters predictive of concomitant osteomyelitis in children with septic arthritis. METHODS A retrospective review was conducted on patients with septic arthritis with magnetic resonance imaging (MRI) between January 2004 and October 2016 at a tertiary care pediatric hospital. Medical charts were reviewed for information including symptoms, diagnosis of osteomyelitis, serum laboratory studies, joint fluid analyses, imaging results, and treatment. Positive diagnosis of osteomyelitis was defined as a hyperintense signal of osseous structures on T2-weighted MRI consistent with infection per attending pediatric radiologist final read. RESULTS A total of 71 patients with 73 septic joints were included. The mean age was 6±4 (0.1 to 17) years and the mean follow-up was 14.9±24.1 (1.0 to 133.1) months. Septic arthritis with concomitant osteomyelitis occurred in 43 of 71 (61%) patients, whereas 28 of 71 (39%) patients had septic arthritis alone. Inflammatory markers such as white blood cell count, erythrocyte sedimentation rate, and C-reactive protein on admission were not associated with concomitant osteomyelitis. Multivariate logistic regression revealed that positive joint fluid bacterial culture (P=0.021) and pain for >4 days before admission (P=0.004) are independent risk factors for concomitant osteomyelitis in children with septic arthritis. Among the 24 septic arthritis patients with pain for >4 days before presentation, 96% (23/24) had concomitant osteomyelitis, whereas 43% (20/47) of patients with pain for ≤4 days had concomitant osteomyelitis. CONCLUSION Pain for >4 days before presentation is an independent predictor of osteomyelitis in children with septic arthritis. In pediatric septic arthritis, MRI should be considered, particularly in patients presenting with pain for >4 days as 96% of these patients had concomitant osteomyelitis. LEVEL OF EVIDENCE Level III-retrospective comparative study.
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22
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Swarup I, Meza BC, Weltsch D, Jina AA, Lawrence JT, Baldwin KD. Septic Arthritis of the Knee in Children: A Critical Analysis Review. JBJS Rev 2021; 8:e0069. [PMID: 32105243 DOI: 10.2106/jbjs.rvw.19.00069] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022]
Abstract
» Septic arthritis of the knee is the most common type of septic arthritis in children, and it may result in irreversible joint damage.
» Staphylococcus aureus is the most common pathogen associated with septic arthritis, but other causative pathogens are possible in children with certain risk factors.
» The diagnosis of septic arthritis of the knee is based on history and physical examination, blood tests, and arthrocentesis.
» Empiric treatment with anti-staphylococcal penicillin or a first-generation cephalosporin is usually recommended but may be tailored according to local resistance patterns and clinical culture data.
» Open or arthroscopic surgical debridement including extensive lavage is effective in eradicating infection, and most patients do not require additional surgical intervention.
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Affiliation(s)
- Ishaan Swarup
- UCSF Benioff Children's Hospital, Oakland, California
| | - Blake C Meza
- Children's Hospital of Philadelphia, Philadelphia, Pennsylvania
| | - Daniel Weltsch
- Children's Hospital of Philadelphia, Philadelphia, Pennsylvania
| | | | - John T Lawrence
- Children's Hospital of Philadelphia, Philadelphia, Pennsylvania
| | - Keith D Baldwin
- Children's Hospital of Philadelphia, Philadelphia, Pennsylvania
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23
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External Validation of an Algorithm to Predict Adjacent Musculoskeletal Infection in Pediatric Patients With Septic Arthritis. J Pediatr Orthop 2021; 40:e999-e1004. [PMID: 32740178 DOI: 10.1097/bpo.0000000000001618] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
BACKGROUND Septic arthritis (SA) remains a potentially morbid disease in the pediatric population. Magnetic resonance imaging (MRI) is the most sensitive tool for recognizing associated osteomyelitis and intramuscular abscess, but is a limited resource. The aim of this study is to externally validate a previously developed algorithm (Rosenfeld and colleagues) to predict adjacent infection in pediatric patients diagnosed with SA. METHODS We identified 120 children under 16 with presumed SA presenting to a tertiary referral center between 2008 and 2018. Patients without confirmed SA, those with insufficient data, and patients who did not receive perioperative MRI were excluded, leaving 53 patients. The previous algorithm suggests that patient age (above 4 y), C-reactive protein (>8.9 mg/L), platelet count (<310×10cells/µL), duration of symptoms (>3 d), and absolute neutrophil count (>7.2×10cells/µL) are risk factors for adjacent infection, with 3 or more variables signifying a "positive" result. Comparing against the gold standard of MRI, the accuracy of the algorithm was validated in terms of sensitivity, specificity, likelihood ratio (LR), and positive and negative predictive value. Discrimination and calibration of this algorithm have been assessed using receiver operating curve analysis and calibration plots. RESULTS The sensitivity and specificity of criteria from Rosenfeld algorithm were 73% and 44%, respectively. Receiver operating curve showed poor discrimination [area under the curve=0.54, confidence interval (CI): 0.26-0.83]. The positive predictive value was 55.9% and the negative predictive value was 63.1% with LR +1.23 (CI: 0.87-1.98) and LR -0.61 (CI 0.28-1.30). Only 53% of patients with 4 or more criteria had an adjacent infection on MRI. Examining our cohort, children with a positive MRI finding had higher mean C-reactive protein (77 vs. 122 mg/L, P=0.04) and were more likely to have waited >72 hours days between symptom onset and hospital presentation (P=0.03). CONCLUSION Although treatment algorithms are an attractive tool to guide clinicians and resource allocation, they need to take into account the local population characteristics before routine implementation. LEVEL OF EVIDENCE Level IV-retrospective cohort study.
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24
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Current Concepts in Pediatric Septic Arthritis. J Am Acad Orthop Surg 2021; 29:196-206. [PMID: 33273402 DOI: 10.5435/jaaos-d-20-00835] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/18/2020] [Accepted: 10/19/2020] [Indexed: 02/01/2023] Open
Abstract
Septic arthritis continues to present challenges regarding the clinical diagnosis, workup, and definitive management. Urgent management is essential, so treating surgeons must efficiently work through differential diagnoses, identify concomitant infections, and do a timely irrigation and débridement. The incidence of methicillin-resistant Staphylococcus aureus is increasing, typically resulting in a more rapid progression of symptoms with more severe clinical presentation. The diagnostic utility of MRI has resulted in improved detection of concomitant septic arthritis and osteomyelitis, although MRI must not substantially delay definitive management. Early diagnosis followed by urgent irrigation and débridement and antibiotic therapy are essential for satisfactory long-term outcomes. Antibiotics should not be administered until blood cultures and arthrocentesis fluid are obtained, except in rare cases of a septic or toxic patient. Once cultures are obtained, empiric antibiotic therapy should commence and provide coverage for the most likely pathogens, given the patient's age. Laboratory markers, especially C-reactive protein, should be followed until normalization and correlate with resolution of clinical symptoms. Definitive antibiotic selection should be shared with a pediatric infectious disease specialist, who can help guide the duration of treatment.
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Laliotis N, Chrysanthou C, Konstandinidis P, Giannakopoulou L. Diagnostic approach and arthroscopic treatment of septic arthritis of the knee, in an infant. Clin Case Rep 2020; 8:3389-3393. [PMID: 33363939 PMCID: PMC7752424 DOI: 10.1002/ccr3.3382] [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: 07/09/2020] [Revised: 08/18/2020] [Accepted: 08/30/2020] [Indexed: 11/12/2022] Open
Abstract
A 9-month-old baby presented with sudden inability to stand and unable to move his leg. Clinical examination showed edema and knee effusion. Blood tests and MRI confirmed septic knee arthritis without bone involvement. He was treated with arthroscopic lavage. He had a complete recovery and normal growth.
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26
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Michalowitz A, Yang J, Castaneda P, Litrenta J. Existing and emerging methods of diagnosis and monitoring of pediatric musculoskeletal infection. Injury 2020; 51:2110-2117. [PMID: 32732117 DOI: 10.1016/j.injury.2020.06.020] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/11/2020] [Revised: 06/03/2020] [Accepted: 06/13/2020] [Indexed: 02/02/2023]
Abstract
Methods of diagnosing and monitoring pediatric musculoskeletal infections are rapidly evolving. Key serologic tests are typically used in screening patients with suspected infections, and remain an integral part of the initial work-up. Synovial studies from arthrocentesis in possible septic arthritis, and source-specific cultures have been the foundation of our treatment algorithm. Given the prevalence of soft tissue abscesses and osteoarticular infections, advanced imaging is an advantageous tool. More affordable use and expanded access to MRI has made it a valuable adjunct to clinical picture and existing tests in order to comprehensively visualize the extent of musculoskeletal infections in children. Ongoing validation for criteria to help determine the patients that stand to benefit the most from MRI, even when surgical intervention may be delayed, remains of significant clinical interest. Given the rates of culture-negative infections, and the need for timely diagnosis, new diagnostic techniques are always being considered. The search for more accurate biomarkers, and technology such as Whole genome sequencing (WGS) and next-generation sequencing (NGS) that can rapidly identify pathogens of all types of phyla based on a small sample of DNA, has promising clinical implications. While once novel and prohibitively expensive, these tests are now being applied in university and tertiary care centers in certain scenarios. Applying these techniques to pediatric musculoskeletal will require a large change in lab workflow and training. However, the benefits of acquiring diagnostic information along with will make them a superior tool in our arsenal of diagnostic tests.
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Affiliation(s)
- Andrew Michalowitz
- NYU Langone Orthopedic Hospital, 301 E. 17th St., New York, NY 10003, United States.
| | - Jenny Yang
- NYU Langone Orthopedic Hospital, 301 E. 17th St., New York, NY 10003, United States.
| | - Pablo Castaneda
- NYU Langone Orthopedic Hospital, 301 E. 17th St., New York, NY 10003, United States.
| | - Jody Litrenta
- NYU Langone Orthopedic Hospital, 301 E. 17th St., New York, NY 10003, United States.
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Current Variation in Joint Aspiration Practice for the Evaluation of Pediatric Septic Arthritis. JOURNAL OF THE AMERICAN ACADEMY OF ORTHOPAEDIC SURGEONS GLOBAL RESEARCH AND REVIEWS 2020; 4:e20.00133. [PMID: 32890012 PMCID: PMC7469993 DOI: 10.5435/jaaosglobal-d-20-00133] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Abstract
Pediatric septic arthritis (SA) is a condition that can be associated with significant morbidity. Although previous research has been on predictive care pathways, scrutiny of the literature continues to reveal wide differences in the patient evaluation and management. The purpose of this study was to define the differences in joint aspiration for the evaluation of pediatric SA across pediatric tertiary care institutions in the United States.
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Hunter S, Baker JF. Ten-year retrospective review of paediatric septic arthritis in a New Zealand centre. INTERNATIONAL ORTHOPAEDICS 2020; 45:147-154. [PMID: 32803355 DOI: 10.1007/s00264-020-04611-z] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/23/2020] [Accepted: 05/06/2020] [Indexed: 11/29/2022]
Abstract
BACKGROUND Paediatric septic arthritis, although a rare diagnosis in the developed world, remains a significant challenge in the New Zealand population. In recent years, there has been effort to characterize the nature of paediatric bone and joint infection for New Zealand due to rising incidence of osteomyelitis and staphylococcal sepsis [1, 2]. We have sought to identify trends in presentation, diagnosis and management of paediatric septic arthritis, with added focus on ethnicity and access to healthcare. METHODS A ten year retrospective review of all cases < 16 years with presumed septic arthritis presenting to a tertiary referral centre between 2008 and 2018 was performed. RESULTS A total of 103 cases met inclusion criteria. Mean age was 5.9 years (SD +/- 4.17) with a male predominance (64%). Traditional laboratory culture method isolated an organism in 66% of cases: Staphylococcus aureus was the most common pathogen identified (61%). Incidence varied greatly by ethnicity 1:16,000 for NZ European children; 1:8760 for Pacifica and 1:4300 for Māori. Mean distance travelled by patients to reach the nearest emergency department was 38.3 km, ranging from 2 to 188 km. Assessment using NZ deprivation scores showed the Māori paediatric population were likely to reside in areas of worse socioeconomic deprivation (p = 0.0005). The majority (66%) of cases were treated surgically with a low recurrence rate (2.9%). Delayed presentation was associated with worse outcomes and more likely in patients residing > 20 km away from the nearest emergency department. CONCLUSION The incidence of paediatric septic arthritis in New Zealand is concerningly high within Māori and Pacific populations. Future health interventions should consider environmental, socioeconomic, and microbiological trends in the burden of disease.
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Affiliation(s)
- Sarah Hunter
- Department of Orthopaedic Surgery, University of Auckland, Auckland, New Zealand.
| | - Joseph F Baker
- Department of Orthopaedic Surgery, Waikato Hospital, Pembroke Street, Hamilton West, 3204, New Zealand.,Department of Surgery, University of Auckland, Auckland, New Zealand
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Septic Arthritis: An Evidence-Based Review of Diagnosis and Image-Guided Aspiration. AJR Am J Roentgenol 2020; 215:568-581. [PMID: 32783556 DOI: 10.2214/ajr.20.22773] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
OBJECTIVE. The purpose of this evidence-based review is to equip radiologists to discuss and interpret findings obtained with various imaging modalities, guide patient selection for percutaneous aspiration, and safely perform arthrocentesis to assess for infection in both native and prosthetic joints. CONCLUSION. Septic arthritis is an emergency that can lead to rapidly progressive, irreversible joint damage. Despite the urgency associated with this diagnosis, there remains a lack of consensus regarding many aspects of the management of native and periprosthetic joint infections.
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Thom C, Ahmed A, Kongkatong M, Moak J. Point-of-care hip ultrasound leads to expedited results in emergency department patients with suspected septic arthritis. J Am Coll Emerg Physicians Open 2020; 1:512-520. [PMID: 33000078 PMCID: PMC7493574 DOI: 10.1002/emp2.12167] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2020] [Revised: 06/02/2020] [Accepted: 06/03/2020] [Indexed: 12/26/2022] Open
Abstract
BACKGROUND The evaluation of septic hip arthritis often incorporates the utilization of hip ultrasonography to determine the presence of a hip joint effusion, as well as to guide arthrocentesis. Point-of-care (POC) hip ultrasound has previously been demonstrated to be accurate when performed by the emergency physician. Time to diagnosis and subsequent intervention in septic arthritis (SA) is critical to favorable outcomes. METHODS Retrospective single-center study of all emergency department (ED) patients who had a POC or radiology hip ultrasound or arthrocentesis as part of their ED evaluation for SA in a 3-year period. We investigated the difference in time to obtain hip ultrasonography results and the time to arthrocentesis between radiology and emergency physician-performed studies in cases of suspected septic hip arthritis. RESULTS Seventy-four patients met inclusion criteria. The median time to hip ultrasound completion was 68 (interquartile range [IQR], 38.8-132) minutes in the emergency physician-performed ultrasound group versus 208.5 (IQR, 163.8-301.3) minutes for the radiology group (P < 0.001). A total of 17 patients had a hip arthrocentesis performed. Time to arthrocentesis was 211 (IQR 141.3-321.5) minutes in the emergency physician-performed arthrocentesis group and 602 (IQR 500-692) minutes in the radiology arthrocentesis (P < 0.001). CONCLUSION There was a statistically shorter time to ultrasound result and arthrocentesis when POC hip ultrasound was utilized by the emergency physician. Given that unfavorable outcomes in SA are associated with delay in treatment, further study is warranted to determine if emergency physician-performed hip ultrasound and arthrocentesis could lead to improved patient-centered clinical end points.
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Affiliation(s)
- Christopher Thom
- Emergency Medicine University of Virginia Health System Charlottesville Virginia USA
| | - Azhar Ahmed
- Emergency Medicine University of Virginia Health System Charlottesville Virginia USA
| | - Matthew Kongkatong
- Emergency Medicine University of Virginia Health System Charlottesville Virginia USA
| | - James Moak
- Emergency Medicine University of Virginia Health System Charlottesville Virginia USA
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Pierrie SN, Scannell BP, Brighton BK, Vanderhave KL. Characteristics of Pyogenic Musculoskeletal Infections in Older Children and Adolescents. Orthopedics 2020; 43:e291-e298. [PMID: 32501517 DOI: 10.3928/01477447-20200521-04] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/07/2019] [Accepted: 04/29/2019] [Indexed: 02/03/2023]
Abstract
The characteristics and clinical consequences of pyogenic bone and joint infections in older children and adolescents have received little attention. This study evaluated the presentation and complications of musculoskeletal infections involving the pelvis and extremities in children older than 10 years. Thirty patients 10 to 17 years old (mean, 12.7 years old) were treated for musculoskeletal infections. Mean time to diagnosis was 9.2 days. Prior to correct diagnosis, 83% were assessed by at least 1 outpatient provider. At the time of admission, 55% were weight bearing and 93% were afebrile. Twenty-eight percent had a multifocal infection. More than one-third had serious medical complications or orthopedic sequelae; compared with patients without complications, this group had a significantly higher admission C-reactive protein and longer hospital stay. Symptoms of musculoskeletal infection common among young children may be absent in adolescents. Axial imaging is recommended to identify adjacent or multifocal disease. The Kocher criteria are less sensitive for septic hip arthritis in the adolescent population. Prompt recognition and treatment are critical to avoid medical and musculoskeletal complications. [Orthopedics. 2020;43(4):e291-e298.].
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Swarup I, LaValva S, Shah R, Sankar WN. Septic Arthritis of the Hip in Children: A Critical Analysis Review. JBJS Rev 2020; 8:e0103. [PMID: 32224630 DOI: 10.2106/jbjs.rvw.19.00103] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022]
Abstract
Septic arthritis of the hip is a common and potentially devastating condition in children. Septic arthritis is most commonly caused by Staphylococcus aureus, but other pathogens should be considered on the basis of patient age and presence of risk factors. Diagnosis of septic arthritis is based on history and physical examination, laboratory tests, radiographs, ultrasound, and arthrocentesis. Treatment comprises empiric antibiotics and joint debridement, and antibiotics are subsequently tailored on the basis of culture data, local resistance patterns, and clinical response. Late sequelae of septic arthritis include osteonecrosis, chondrolysis, growth disturbance, subluxation or dislocation, and progressive ankylosis. Surgical treatments to address these issues have been described.
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Affiliation(s)
- Ishaan Swarup
- UCSF Benioff Children's Hospital, Oakland, California
| | - Scott LaValva
- Children's Hospital of Philadelphia, Philadelphia, Pennsylvania
| | - Ronit Shah
- Children's Hospital of Philadelphia, Philadelphia, Pennsylvania
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Griswold BG, Sheppard E, Pitts C, Gilbert SR, Khoury JG. The Introduction of a Preoperative MRI Protocol Significantly Reduces Unplanned Return to the Operating Room in the Treatment of Pediatric Osteoarticular Infections. J Pediatr Orthop 2020; 40:97-102. [PMID: 31923170 DOI: 10.1097/bpo.0000000000001113] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
BACKGROUND Pediatric osteoarticular infection can cause severe morbidity. Some infectious loci may be difficult to identify clinically, and there may be more than one. There is little agreement regarding the appropriate use of preoperative magnetic resonance imaging (MRI) in this setting. After noting an unacceptably high rate of unplanned returns to the operating room for recurrent infection, clinicians at a tertiary care children's hospital noticed many patients had adjacent foci of infection on postoperative MRI. As a result, patients experienced prolonged treatment courses and multiple surgeries. An interdisciplinary team instituted practice guidelines whereby all patients with suspected osteoarticular infection underwent MRI for planned debridement during a reserved morning slot with a surgical suite on hold to proceed directly to surgery if indicated. Images were reviewed in real time to form the surgical plan. Young patients that required sedation for MRI were taken to surgery under the same anesthetic used for MRI without being awakened. The purpose of our retrospective study is to determine if implementing the practice guidelines for acute management of osteoarticular infection reduced unplanned returns to the operating room. METHODS A total of 93 patients with osteoarticular infection were included in this study. A total of 40 cases, group A, were treated before implementing practice guidelines; 53 cases, group B, were treated after implementing practice guidelines. Our primary outcomes of interest were the identification of adjacent infections prior to surgery and need for repeat surgery, either planned or unplanned. RESULTS Implementation of these guidelines reduced repeat surgery from 50% of patients to <27% (P=0.0099). Of patients requiring repeat surgery, 85% (n=17) were unplanned in group A versus 60% (n=9) in group B (P=0.0099). Adjacent infections were identified in 47.5% (n=19) of patients in group A, versus 60% (n=32) in group B. Adjacent infections were known before surgery in 32% (n=6) of patients in group A versus 72% (n=23) in group B. There were no statistically significant differences in initial patient characteristics or sites of infection. CONCLUSIONS Implementing these guidelines reduced the need for repeat surgery in this population. It is difficult to predict with sufficient accuracy which patients need preoperative MRI. While resource intensive, preoperative MRI appears to offer substantial benefit in preoperative planning.
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Affiliation(s)
- Branum G Griswold
- Department of Orthopedic Surgery, University of Alabama, Birmingham, AL
| | - Evan Sheppard
- Department of Orthopedic Surgery, University of Alabama, Birmingham, AL
| | - Charlie Pitts
- Department of Orthopedic Surgery, University of Alabama, Birmingham, AL
| | - Shawn R Gilbert
- Department of Orthopedic Surgery, University of Alabama, Birmingham, AL
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Abstract
Septic arthritis in children is a surgical emergency, and prompt diagnosis and treatment are mandatory. If diagnosed quickly and treated correctly, the outcomes can be good. With delay in diagnosis and without proper treatment, outcomes often are quite devastating, with growth disturbance and joint destruction.
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Obana KK, Murgai RR, Schur M, Broom AM, Hsu A, Kay RM, Pace JL. Synovial fluid cell counts and its role in the diagnosis of paediatric septic arthritis. J Child Orthop 2019; 13:417-422. [PMID: 31489049 PMCID: PMC6701437 DOI: 10.1302/1863-2548.13.190022] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/03/2023] Open
Abstract
PURPOSE Clinical presentation of paediatric septic arthritis (SA) can be similar to other joint pathologies. Despite potential for infection in all major joints, most diagnostic criteria are based on values from the hip. This study identifies the best joint aspirate values in diagnosing SA in all joints. METHODS In all, 166 patients who underwent 172 joint aspirations at the authors' institution between 01 September 2004 and 01 September 2014 were retrospectively identified. Recorded measures included age, sex, duration of symptoms, fever history, weight-bearing status, aspiration results, serum results and antibiotic administration. Patients were placed in the following four categories: 'culture confirmed SA' (C-SA), 'suspected SA' (S-SA), 'Other' and 'Other-rheumatologic' (Other-R), a subcategory of 'Other'. RESULTS Most common sites of aspiration were the knee (55%) and hip (29%). Diagnostic grouping was as follows: C-SA = 44, S-SA = 45, Other = 83 (Other-R = 21). Fever and non-weight-bearing prior to admission were useful predictors of SA, though in C-SA patients, 21% did not have a fever and 23% could weight bear at the time of admission. Aspirate white blood cell (WBC) count was significantly greater in both C-SA (92 000 cells/hpf) and S-SA (54 000) than in Other (10 000) and Other-R (18 000) patients. The percentage of polymorphonuclear (%PMN) was also significantly greater in C-SA (81.1%) and S-SA (80.9%) than in Other (57.9%) and Other-R (63.3%). CONCLUSION Joint aspirate values, especially %PMN, are valuable in diagnosing SA. Additionally, antibiotics pre-aspiration did not affect %PMN, facilitating subsequent diagnosis of infection. Lastly, while aspirate WBC count was a valuable indicator of SA, this finding is not as definitive as previous research suggests. LEVEL OF EVIDENCE IV Case Series.
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Affiliation(s)
- K. K. Obana
- Children’s Orthopaedic Center, Children’s Hospital Los Angeles, Los Angeles, California, USA
| | - R. R. Murgai
- Children’s Orthopaedic Center, Children’s Hospital Los Angeles, Los Angeles, California, USA,Keck School of Medicine, University of Southern California, Los Angeles, California, USA
| | - M. Schur
- Children’s Orthopaedic Center, Children’s Hospital Los Angeles, Los Angeles, California, USA,Keck School of Medicine, University of Southern California, Los Angeles, California, USA
| | - A. M. Broom
- Children’s Orthopaedic Center, Children’s Hospital Los Angeles, Los Angeles, California, USA,Keck School of Medicine, University of Southern California, Los Angeles, California, USA
| | - A. Hsu
- Children’s Orthopaedic Center, Children’s Hospital Los Angeles, Los Angeles, California, USA,Keck School of Medicine, University of Southern California, Los Angeles, California, USA
| | - R. M. Kay
- Children’s Orthopaedic Center, Children’s Hospital Los Angeles, Los Angeles, California, USA,Keck School of Medicine, University of Southern California, Los Angeles, California, USA
| | - J. L. Pace
- Elite Sports Medicine, Connecticut Children’s Medical Center, Farmington, Connecticut, USA,Correspondence should be sent to R. M. Kay, Children’s Orthopaedic Center, Children’s Hospital Los Angeles, 4650 Sunset Blvd. MS# 69, Los Angeles, CA 90027, USA.
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Lu CH, Hsiao YF, Hsu HC, Ko YL, Lin TS, Chen LF, Hsieh SC, Li KJ. Can ultrasound differentiate acute erosive arthritis associated with osteomyelitis, rheumatoid arthritis, or gouty arthritis? Int J Rheum Dis 2019; 22:1972-1977. [PMID: 31364282 DOI: 10.1111/1756-185x.13672] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2017] [Revised: 05/28/2019] [Accepted: 07/04/2019] [Indexed: 11/29/2022]
Abstract
AIM The study intended to determine the specific ultrasonographic features of acute arthritis with periarticular bone erosions caused by acute osteomyelitis (OM), rheumatoid arthritis (RA) and gouty arthritis (GA). METHOD We included 33 patients (seven with acute OM, 18 with RA flares, and eight with GA attacks) having acute monoarthritis or oligoarthritis, and receiving ultrasound (US) examinations in the acute stage. The US images were rated by three rheumatologists blinded to the diagnosis. The median scores of their evaluation of the subcutaneous tissue, periosteum, and synovium were compared. Interrater reliability was calculated using Cronbach's alpha. RESULTS The highest mean grade of subcutaneous edema appeared in patients with acute OM, and grade 2 edema was more frequent than patients with RA and GA (P = .003 and P = .026, respectively; α = .869). The prevalence of subcutaneous power Doppler signal was also higher in patients with acute OM than in those with RA and GA (P < .001 and P = .041, respectively; α = .756). Periosteal vascularity presented more frequently in acute OM (P = .003 compared with RA; P = .041 compared with GA), but the interrater reliability was poor (α = .518). The tophaceous material in GA was distinctive from OM and RA (P = .010 and P < .001, respectively; α = .774). CONCLUSION The most discriminative US features in this study were the subcutaneous tissue changes in addition to the periosteal findings. US could contribute to the differential diagnosis of acute erosive arthritis.
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Affiliation(s)
- Cheng-Hsun Lu
- Division of Allergy, Immunology and Rheumatology, Department of Internal Medicine, National Taiwan University Hospital, Taipei, Taiwan.,Graduate Institute of Clinical Medicine, College of Medicine, National Taiwan University, Taipei, Taiwan
| | - Yu-Fen Hsiao
- Department of Internal Medicine, Chu-Shang Show-Chwan Memorial Hospital, Nantou, Taiwan
| | - Hui-Ching Hsu
- Department of Internal Medicine, Wan Fang Hospital, Taipei Medical University, Taipei, Taiwan
| | - Ya-Lin Ko
- Department of Internal Medicine, Show-Chwan Memorial Hospital, Changhua, Taiwan
| | - Ting-Syuan Lin
- Graduate Institute of Clinical Medicine, College of Medicine, National Taiwan University, Taipei, Taiwan.,Division of Allergy, Immunology and Rheumatology, Department of Internal Medicine, National Taiwan University Hospital Yun-Lin Branch, Yunlin, Taiwan
| | - Lung-Fang Chen
- Department of Internal Medicine, Wan Fang Hospital, Taipei Medical University, Taipei, Taiwan
| | - Song-Chou Hsieh
- Division of Allergy, Immunology and Rheumatology, Department of Internal Medicine, National Taiwan University Hospital, Taipei, Taiwan
| | - Ko-Jen Li
- Division of Allergy, Immunology and Rheumatology, Department of Internal Medicine, National Taiwan University Hospital, Taipei, Taiwan
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Predicting Periarticular Infection in Children With Septic Arthritis of the Hip: Regionally Derived Criteria May Not Apply to All Populations. J Pediatr Orthop 2019; 39:268-274. [PMID: 30969258 DOI: 10.1097/bpo.0000000000000934] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
BACKGROUND The management of septic arthritis of the hip in children can be complicated by the presence of additional coexisting periarticular infections (PAIs). Criteria predicting the presence of PAI have recently been proposed by Rosenfeld and colleagues with the goal of using magnetic resonance imaging (MRI) efficiently in the workup of septic arthritis. The purpose of this study was to determine the applicability of recently published predictive criteria for PAI (developed in the Southwestern United States using a variety of joints) to septic arthritis of the hip treated at a large Northeastern tertiary care center. METHODS We studied patients treated for septic arthritis of the hip with irrigation and debridement in a large Northeastern tertiary care center over a 10-year period. Laboratory and clinical variables related to presentation, treatment, and outcome were collected. Subjects with and without a perioperative MRI were compared with published criteria by Rosenfeld and colleagues. RESULTS Fifty-one subjects (53 hips) were identified with a mean age of 7.0 years (range, 1.2 to 19.3 y) and mean follow-up was 16 months (range, 2 to 85 mo). MRIs were obtained in 20 subjects (43%). Coexisting osteomyelitis was revealed in 7/20 of these studies (35% of MRIs); 4 of which showed coexisting intramuscular abscesses. Within our MRI cohort, the Rosenfeld criteria were found to have a sensitivity of 86%, a specificity of 54%, and a false-positive rate of 50% for the hip (compared with originally reported sensitivity of 90%, specificity of 67%, and false-positive rate of 33%). Overall, advanced imaging changed management in 5/51 patients (9%) by influencing the need for further treatment, whereas the remainder underwent isolated treatment of the septic hip joint with no adverse outcomes. One patient in the MRI cohort (without PAI) developed osteonecrosis of the femoral head. CONCLUSIONS We found lower sensitivity and specificity and higher false-positive rates for the Rosenfeld criteria in the hip for our geographically distinct population. Using the Rosenfeld criteria, MRIs would have been ordered unnecessarily in half of our series. Because of potential differences in regional microbiology and anatomic-specific factors, general predictive criteria for coexisting PAI based a single geographic region may be less generalizable to cases of hip sepsis in other geographic areas such as the Northeastern United States. LEVEL OF EVIDENCE Level 4-retrospective cohort study.
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Ben-Zvi L, Sebag D, Izhaki G, Katz E, Bernfeld B. Diagnosis and Management of Infectious Arthritis in Children. Curr Infect Dis Rep 2019; 21:23. [PMID: 31144135 DOI: 10.1007/s11908-019-0678-5] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
PURPOSE OF REVIEW Septic arthritis is limb and life-threatening condition which necessitates rapid diagnosis and treatment. It is important for a medical practitioner to be familiar with this condition. This review summarizes the epidemiology, risk factors, diagnosis and differential diagnosis, complications, as well as treatment and the following-up of this condition. RECENT FINDINGS Different causative organisms require unique diagnostic and treatment approaches. Establishing the diagnosis often requires multiple diagnostic modalities, some of which are new and innovative. Differential diagnosis requires excluding non-infectious inflammatory causes, such as reactive arthritis, juvenile rheumatoid arthritis, transient synovitis, and pericapsular pyomyositis. There is no consensus regarding the nature or duration of pharmacological or surgical treatment. Treatment includes administration of appropriate antimicrobial therapy and including the use of steroids and drainage. The most common complications are osteonecrosis of the femoral head and chronic osteomyelitis. Complications of septic arthritis are mostly due to a missed diagnosis. Further studies are required to better evaluate the diagnostic and therapeutic choice.
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Affiliation(s)
- Lior Ben-Zvi
- Department of Orthopedic Surgery, Lady Davis Carmel Medical Center, 7 Michal Street, 34362, Haifa, Israel.
| | - Diklah Sebag
- Ruth and Bruce Rappaport Faculty of Medicine, Technion, Haifa, Israel
| | - Guy Izhaki
- Department of Orthopedic Surgery, Lady Davis Carmel Medical Center, 7 Michal Street, 34362, Haifa, Israel
| | - Eldad Katz
- Department of Orthopedic Surgery, Lady Davis Carmel Medical Center, 7 Michal Street, 34362, Haifa, Israel
| | - Benjamin Bernfeld
- Department of Orthopedic Surgery, Lady Davis Carmel Medical Center, 7 Michal Street, 34362, Haifa, Israel
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Abstract
INTRODUCTION Septic arthritis of the hip (SAH) is a common condition encountered by pediatric orthopaedic surgeons and is treated with arthrotomy and irrigation. Depending on the response to initial treatment, some patients require surgical treatment beyond the index procedure. The purpose of this study was to investigate risk factors for repeat surgical intervention after initial arthrotomy for presumed SAH. METHODS A multicenter retrospective review of all children who underwent surgical arthrotomy for presumed SAH over a ten-year period was conducted. Variables queried included demographics, clinical presentation, laboratory parameters, imaging, infecting organism, presence of osteomyelitis, and surgical interventions performed. Logistic regression was used to predict the risk of a second procedure. Chi-square was used to compare patients who required further surgery and those who did not. RESULTS One hundred and thirty-eight patients (139 hips) qualified for inclusion. The average age at initial surgery was 6.1 years (range, zero to 17 years), and 57% of the patients were male. Concomitant osteomyelitis was diagnosed in 55 cases (40%). An infecting organism was identified from 70 (50%) index intraoperative cultures, with Staphylococcus aureus infections (methicillin-resistant Staphylococcus aureus [MRSA], 27; methicillin-sensitive Staphylococcus aureus, 25) being the most frequent. Fifty-six patients (41%) underwent subsequent surgical intervention, at an average of 5.5 days (range, 2 to 95) from the index procedure. Independent risk factors for repeat surgical procedures included presenting C-reactive protein >10 mg/dL (P = 0.002) and presenting erythrocyte sedimentation rate >40 (P = 0.011). The odds of repeat surgical intervention were significantly increased by the presence of concomitant osteomyelitis (odds ratio, 3.4; P = 0.001) and positive index intraoperative cultures for MRSA (odds ratio, 1.19; P = 0.001). Preoperative MRI before the index procedure was not universal (73/138; 53%), and acquisition of preoperative MRI was not associated with secondary surgical intervention (P = 0.389). DISCUSSION Forty-one percent of children in this multicenter cohort underwent at least one repeat surgical procedure after the index arthrotomy for management of presumed SAH. Risk factors for return to the operating room include elevated initial erythrocyte sedimentation rate and C-reactive protein, infection with MRSA, and presence of osteomyelitis. LEVEL OF EVIDENCE Level 3, case-cohort series. Type of evidence, therapeutic.
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Abstract
PURPOSE OF REVIEW To review the clinical diagnosis, management and natural history of septic arthritis of the hip (SAH) in the pediatric patient, and to highlight new information that may improve the management of these patients. RECENT FINDINGS The basics of management of possible pediatric SAH have remained largely unchanged for generations. New questions have been raised regarding the role and timing of advanced imaging (MRI) in the evaluation of patients with possible SAH. Published criteria have been derived to guide the need for MRI studies in these patients. Validation of these guidelines continues. Recent reviews have highlighted the possibility of Lyme disease as a potential cause of monoarticular pediatric hip pain. The role of PCR technology in the diagnosis and management of SAH remains unclear at this time. SUMMARY The child with a limp remains a common and urgent clinical concern. There may be expanded roles for MRI and PCR to better diagnose and treat the involved joint itself, as well as any associated nonarticular area of infection. Lyme disease should remain on the list of possible differential diagnoses in this population, particularly in geographic areas where the disease vector is known to be endemic.
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Abstract
BACKGROUND Developmental dysplasia of the hip (DDH), which encompasses a wide spectrum of disease from mild dysplasia to frank dislocation, is one of the most common developmental deformities of the lower extremities and one of the leading causes of future osteoarthritis and hip arthroplasty. Legg-Calvé-Perthes disease (LCPD) results from a vascular insult to the growing femoral epiphysis, which in turn can create permanent morphologic changes to the hip joint. Slipped capital femoral epiphysis (SCFE) occurs when the proximal femoral physis fails allowing the epiphysis to displace in relation to the metaphysis. Infections about the hip also create significant morbidity in the pediatric hip. METHODS We searched the PubMed database for all studies related to DDH, LCPD, SCFE, and pediatric hip infections that were published between July 1, 2014 and August 31, 2017. The search was limited to English articles and yielded 839 papers. This project was initiated by the Pediatric Orthopaedic Society of North America Publications Committee and was reviewed and approved by the Pediatric Orthopaedic Society of North America Presidential Line. RESULTS A total of 40 papers were selected for review based upon new and significant findings. Select historical manuscripts are also included to provide sufficient background information. CONCLUSIONS DDH, LCPD, SCFE, and infections about the hip continue to be important topics in pediatric orthopaedics and areas of vital research. This manuscript reviews the most important recent literature on the diagnosis and treatment of these pediatric hip conditions. LEVEL OF EVIDENCE Level V.
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Affiliation(s)
- Matthew R Schmitz
- Department of Orthopaedics, San Antonio Military Medical Center, San Antonio, TX
| | - Todd J Blumberg
- Department of Orthopaedics and Sports Medicine, Seattle Children's Hospital, Seattle, WA
| | - Susan E Nelson
- Department of Orthopaedics and Rehabilitation, University of Rochester and the Golisano Children's Hospital at Strong, Rochester, NY
| | - Julieanne P Sees
- Department of Orthopaedic Surgery, Nemours Alfred I Dupont Hospital for Children, Wilmington, DE
| | - Wudbhav N Sankar
- Division of Orthopaedic Surgery, Children's Hospital of Philadelphia, Philadelphia, PA
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Bernstein DT, Haruno LS, Daram S, Dawson JR, Zhang W, Rosenfeld SB. Patient Factors Associated With Methicillin-Resistant Staphylococcus aureus Septic Arthritis in Children. Orthopedics 2018; 41:e277-e282. [PMID: 29451940 DOI: 10.3928/01477447-20180213-04] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/13/2017] [Accepted: 12/15/2017] [Indexed: 02/03/2023]
Abstract
Staphylococcus aureus is the most common causative organism in pediatric septic arthritis, with methicillin-resistant Staphylococcus aureus (MRSA) being responsible for a significant portion of these infections. Early identification and initiation of proper treatment may improve outcomes by minimizing potential morbidity. The purpose of this study was to identify variables obtained on initial patient presentation associated with MRSA septic arthritis. Sixteen factors were retrospectively evaluated in 109 consecutive pediatric patients diagnosed with culture-confirmed septic arthritis. Graphical and logistical regression analyses were employed to determine factors independently predictive of MRSA septic arthritis. Twenty-seven (25%) patients had MRSA and 82 (75%) had non-MRSA septic arthritis. C-reactive protein of 13.7 mg/L or greater, duration of symptoms of 4 days or more, heart rate of 126 beats per minute or greater, and absolute neutrophil count of 8.72×103 cells/µL or greater were associated with MRSA septic arthritis. Ultimately, 98% of patients with 1 or no risk factors had non-MRSA and 96% of patients with MRSA septic arthritis had 2 or more positive risk factors. Elevated C-reactive protein, duration of symptoms, heart rate, and absolute neutrophil count are predictive of MRSA infection in the setting of pediatric septic arthritis and can be obtained on initial evaluation. In patients for whom there is concern for MRSA infection, this may guide more expedient treatment, such as early initiation of contact precautions and appropriate antibiotic therapy before culture results become available. [Orthopedics. 2018; 41(2):e277-e282.].
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Welling BD, Haruno LS, Rosenfeld SB. Validating an Algorithm to Predict Adjacent Musculoskeletal Infections in Pediatric Patients With Septic Arthritis. Clin Orthop Relat Res 2018; 476:153-159. [PMID: 29389760 PMCID: PMC5919251 DOI: 10.1007/s11999.0000000000000019] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
BACKGROUND Septic arthritis is frequently associated with adjacent infections including osteomyelitis and subperiosteal and intramuscular abscesses. While often clinically indiscernible from isolated septic arthritis, the diagnosis of adjacent infections is important in determining the need for additional surgical intervention. MRI has been used as the diagnostic gold standard for assessing adjacent infection. Routine MRI, however, can be resource-intensive and delay surgical treatment. In this context, there is need for additional diagnostic tools to assist clinicians in determining when to obtain preoperative MRI in children with septic arthritis. In a previous investigation by Rosenfeld et al., an algorithm, based on presenting laboratory values and symptoms, was derived to predict adjacent infections in septic arthritis. The clinical applicability of the algorithm was limited, however, in that it was built from and applied on the same population. The current study was done to address this criticism by evaluating the predictive power of the algorithm on a new patient population. QUESTIONS/PURPOSES (1) Can a previously created algorithm used for predicting adjacent infection in septic arthritis among pediatric patients be validated in a separate population? METHODS Records for all pediatric patients (1-18 years old) surgically treated for suspected septic arthritis during a 3-year period were retrospectively reviewed (109 patients). Of these patients, only those with a diagnosis of septic arthritis confirmed by synovial fluid analysis were included in the study population. Patients without confirmation of septic arthritis via synovial fluid analysis, Gram stain, or culture were excluded (34 patients). Patients with absence of MRI, younger than 1 year, insufficient laboratory tests, or confounding concurrent illnesses also were excluded (18 patients), resulting in a total of 57 patients in the study population. Five variables which previously were shown to be associated with risk of adjacent infection were collected: patient age (older than 4 years), duration of symptoms (> 3 days), C-reactive protein (> 8.9 mg/L), platelet count (< 310 x 10 cells/µL), and absolute neutrophil count (> 7.2 x 10 cells/µL). Adjacent infections were determined exclusively by preoperative MRI, with all patients in this study undergoing preoperative MRI. MR images were read by pediatric musculoskeletal radiologists and reviewed by the senior author. According to the algorithm we considered the presence of three or more threshold-level variables as a "positive" result, meaning the patient was predicted to have an adjacent infection. Comparing against the gold standard of MRI, the algorithm's accuracy was evaluated in terms of sensitivity, specificity, positive predictive value, and negative predictive value. RESULTS In the new population, the sensitivity and specificity of the algorithm were 86% (95% CI, 0.70-0.95) and 85% (95% CI, 0.64-0.97), respectively. The positive predictive value was determined to be 91% (95% CI, 0.78-0.97), with a negative predictive value of 77% (95% CI, 0.61-0.89). All patients meeting four or more algorithm criteria were found to have septic arthritis with adjacent infection on MRI. CONCLUSIONS Critical to the clinical applicability of the above-mentioned algorithm was its validation on a separate population different from the one from which it was built. In this study, the algorithm showed reproducible predictive power when tested on a new population. This model potentially can serve as a useful tool to guide patient risk stratification when determining the likelihood of adjacent infection and need of MRI. This better-informed clinical judgement regarding the need for MRI may yield improvements in patient outcomes, resource allocation, and cost. LEVEL OF EVIDENCE Level II, diagnostic study.
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Affiliation(s)
- Benjamin D Welling
- B. D. WellingBaylor College of Medicine, Department of Orthopedic Surgery, Houston, TX, USA L. S. Haruno, S. B. RosenfeldTexas Children's Hospital, Division of Orthopedic Surgery, Houston, TX, USA
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Jaramillo D, Dormans JP, Delgado J, Laor T, St Geme JW. Hematogenous Osteomyelitis in Infants and Children: Imaging of a Changing Disease. Radiology 2017; 283:629-643. [DOI: 10.1148/radiol.2017151929] [Citation(s) in RCA: 88] [Impact Index Per Article: 12.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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Abstract
Acute septic arthritis is a condition with the potential for joint destruction, physeal damage, and osteonecrosis, which warrants urgent identification and treatment. The organism most frequently responsible is Staphylococcus aureus; however, our understanding of pathogens continues to evolve as detection methods continue to improve. MRI has improved our ability to detect concurrent infections and is a useful clinical tool where available. The treatment course involves intravenous antibiotics followed by transition to oral antibiotics when clinically appropriate. The recommended surgical treatment of septic arthritis is open arthrotomy with decompression of the joint, irrigation, and debridement and treatment of concurrent infections.
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Funk SS, Copley LAB. Acute Hematogenous Osteomyelitis in Children: Pathogenesis, Diagnosis, and Treatment. Orthop Clin North Am 2017; 48:199-208. [PMID: 28336042 DOI: 10.1016/j.ocl.2016.12.007] [Citation(s) in RCA: 68] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
Acute hematogenous osteomyelitis (AHO) in children is an ideal condition to study due to its representation of a wide spectrum of disorders that comprise pediatric musculoskeletal infection. Proper care for children with AHO is multidisciplinary and collaborative. AHO continues to present a significant clinical challenge due to evolving epidemiology and complex pathogenesis. A guideline-driven, multidisciplinary approach has been introduced and shown to effectively reduce hospital stay, improve the timing and selection of empirical antibiotic administration, reduce delay to initial MRI, reduce the rate of readmission, and shorten antibiotic duration.
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Affiliation(s)
- Shawn S Funk
- Department of Orthopaedic Surgery, The Children's Hospital of San Antonio, Baylor College of Medicine, 315 North San Saba Street, Suite 1135, San Antonio, TX 78207, USA
| | - Lawson A B Copley
- Department of Orthopaedic Surgery, Children's Medical Center of Dallas, University of Texas Southwestern, 1935 Medical District Drive, Dallas, TX 75235, USA.
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Abstract
BACKGROUND Septic arthritis (SA) and acute osteomyelitis (AO) are among the most common serious bacterial infections of childhood. Knowledge of the microbiology of SA is critical to treatment. Awareness of the presence of attendant AO is also important to guide clinical management. We sought to describe the current microbiology of SA in children and clinical features associated with coexisting AO. MATERIALS AND METHODS Patients with SA were identified from the infectious diseases consult service records from 2010 to 2014. Patients with penetrating/open trauma and orthopedic hardware in situ were excluded. RESULTS A total of 168 patients with SA were included. The most common causative organism was Staphylococcus aureus accounting for 47.7% of cases (29.1% were methicillin-susceptible S. aureus and 18.5% were methicillin-resistant S. aureus), followed by group A streptococcus (GAS, 8.9%). The proportion of cases due to GAS increased from 2011 to 2014 (3.3%-16.7%; P = 0.1). One hundred eight (64.3%) patients had concurrent AO. The presence of osteomyelitis was associated with older median age (5.9 vs. 2.4 years; P = 0.04), a longer duration of symptoms (5 vs. 2.5 days; P < 0.001), S. aureus (62.1% vs. 21.7%; P < 0.001), bacteremia (46.2% vs. 20.3%; P = 0.001), a longer duration of fever after admission (5 vs. 2 days; P < 0.001) and a longer length of stay (10 vs. 6 days; P < 0.001). CONCLUSIONS Methicillin-resistant S. aureus continues to be an important cause of SA though GAS may be increasing in frequency. The presence of concomitant osteomyelitis is higher than previously reported and associated with older age, a longer duration of symptoms and fever, bacteremia and S. aureus.
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48
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Kelly DM, Weiss JM, Martus JE. What's New in Pediatric Orthopaedics. J Bone Joint Surg Am 2017; 99:353-359. [PMID: 28196040 DOI: 10.2106/jbjs.16.01192] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Affiliation(s)
- Derek M Kelly
- 1Campbell Clinic, Department of Orthopaedic Surgery and Biomechanical Engineering, University of Tennessee, Memphis, Tennessee 2Division of Orthopedic Surgery, Southern California Kaiser Permanente Medical Group, Los Angeles, California 3Division of Pediatric Orthopaedics, Monroe Carell Jr. Children's Hospital at Vanderbilt, Nashville, Tennessee
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49
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Percutaneous aspiration and irrigation technique for the treatment of pediatric septic hip: effectiveness and predictive parameters. J Pediatr Orthop B 2016; 25:514-9. [PMID: 27258361 DOI: 10.1097/bpb.0000000000000345] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
UNLABELLED Septic arthritis of the hip has been treated traditionally by surgical drainage. Recent reports have described repeated aspirations as an adequate and safe treatment. The aim of the present study was to assess the success of treatment of septic arthritis of the hip by repeated aspirations and to identify predictive factors for failure. Medical records were retrospectively reviewed for all patients treated by ultrasound-guided aspiration and intravenous antibiotics between 2002 and 2010. The demographic, clinical, laboratory, and outcome data were recorded. Findings were compared between patients who responded to this treatment and those who subsequently required surgery. A total of 42 patients fulfilled the inclusion criteria. Of the total 33 responded to repeated aspirations and nine required surgical drainage. The mean age of patients requiring surgery was 8.3 years compared with 2.6 years for those responding to aspirations. Age older than 10 years was associated with a 57% rate of failed conservative treatment compared with 14% for age younger than 10 years. There was no significant difference between the groups in any of the other parameters measured. Follow-up of the operated group after an average of 7.44 years showed no unfavorable results. In children with septic arthritis of the hip, hip decompression may be achieved with repeated aspirations and lavage combined with antibiotics, sparing patients the risks of anesthesia and surgery. Age older than 10 years at admission may serve as the cutoff for initial conservative treatment. The postponement of surgery did not cause any long-term morbidity. LEVEL OF EVIDENCE Level III; patients compared on the basis of outcome of conservative treatment of septic hip arthritis.
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50
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Agarwal A, Aggarwal AN. Bone and Joint Infections in Children: Septic Arthritis. Indian J Pediatr 2016; 83:825-33. [PMID: 26189923 DOI: 10.1007/s12098-015-1816-1] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/09/2015] [Accepted: 06/09/2015] [Indexed: 10/23/2022]
Abstract
The pathological invasion of a joint and subsequent inflammation is known as septic arthritis. The knee and hip are the most frequently involved joints. Staphylococcus aureus is the most common cause of septic arthritis in children. An acute onset of illness with an inflamed painful joint and restricted movements and inability to use joint (pseudoparalysis) clinically indicates septic arthritis. The diagnosis is difficult in a neonate or young child where refusal to feed, crying, discomfort during change of diaper (if hip is involved) or attempted joint movement may be the only findings. Fever and other systemic signs may also be absent in neonates. Septic arthritis is diagnosed clinically, supported by appropriate radiological and laboratory investigations. The peripheral blood white cell count is frequently raised with a predominance of polymorphonuclear cells. The acute phase reactants such as C-reactive protein (CRP) and erythrocyte sedimentation rate (ESR) are often markedly raised. Ultrasonography and MRI are preferred investigations in pediatric septic arthritis. Determination of infecting organism in septic arthritis is the key to the correct antibiotic choice, treatment duration and overall management. Joint aspirate and/or blood culture should be obtained before starting antibiotic treatment. Several effective antibiotic regimes are available for managing septic arthritis in children. Presence of large collections, thick pus, joint loculations and pus evacuating into surrounding soft tissues are main indications for surgical drainage. Joint aspiration can be a practical alternative in case the lesion is diagnosed early, with uncomplicated presentations and superficial joints.
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Affiliation(s)
- Anil Agarwal
- Department of Orthopedics, Chacha Nehru Bal Chikitsalaya, Geeta Colony, Delhi, 110031, India.
| | - Aditya N Aggarwal
- Department of Orthopedics, UCMS and GTB Hospital, Shahdara, Delhi, India
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