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Waldman LE, Maluli I, Moon CN, Skalski M, Matcuk GR. Sacroiliac joint dysfunction: anatomy, pathophysiology, differential diagnosis, and treatment approaches. Skeletal Radiol 2025; 54:1195-1213. [PMID: 39556269 DOI: 10.1007/s00256-024-04831-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/18/2024] [Revised: 10/26/2024] [Accepted: 11/07/2024] [Indexed: 11/19/2024]
Abstract
The sacroiliac joints (SIJ) play a pivotal role in pelvic stability and load transmission. SIJ-related disorders can pose a diagnostic challenge because of complex anatomy, non-specific imaging findings, and overlapping symptomatology with other lower back conditions. Broadly, SIJ pathology can be divided into the following categories: infectious, inflammatory, degenerative, mechanical, traumatic, and neoplastic. On the spectrum of mechanical disorders is the entity of SIJ dysfunction, defined as pain localized to the SIJ due to non-inflammatory causes. This paper aims to enhance the understanding of SIJ dysfunction by exploring SIJ anatomy, pathophysiology, and differential diagnosis for SIJ pain. Etiologies, associations, and diagnostic physical examination maneuvers for SIJ dysfunction are reviewed. We will discuss the role of diagnostic imaging in SIJ dysfunction and propose imaging findings which may indicate the diagnosis. Finally, we will discuss therapeutic strategies to treat SIJ dysfunction. By delving into the complexities of SIJ anatomy and pathophysiology, this paper provides valuable discernment for the diagnosis and management of SIJ-related disorders.
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Affiliation(s)
- Leah E Waldman
- Department of Radiology, Duke University Medical Center, Box 3808 DUMC, Durham, NC, 27710, USA.
| | | | - Charles N Moon
- Department of Orthopedics, Cedars Sinai Medical Center, Los Angeles, CA, USA
| | - Matthew Skalski
- Department of Radiology, Palmer College of Chiropractic-West Campus, San Jose, CA, USA
| | - George R Matcuk
- Department of Imaging, Cedars Sinai Medical Center, Los Angeles, CA, USA
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Herrán de la Gala D, Barba Arce AB, Lamagrande Obregón A, Landeras Álvaro RM, Cobo Ruiz T, Gallardo Agromayor EC. Diffuse idiopathic skeletal hyperostosis: Imaging findings with special focus on extraspinal involvement. RADIOLOGIA 2024; 66:447-458. [PMID: 39426813 DOI: 10.1016/j.rxeng.2023.06.009] [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: 04/24/2023] [Accepted: 06/01/2023] [Indexed: 10/21/2024]
Abstract
Diffuse Idiopathic Skeletal Hyperostosis (IDHS) is a multifactorial disease with a high prevalence and that is frequently detected incidentally in imaging tests. Most of its diagnostic criteria are focused on axial involvement and more specifically the spine. However, peripheral involvement in DISH is less well known despite its non insignificant frequency. DISH can be associated with serious complications, the most severe being vertebral fractures in low energy trauma and dysphagia or airway obstruction in cervical involvement. Knowing how to identify the patterns of peripheral involvement of DISH and its complications helps in the radiological and clinical management of patients with this disease.
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Affiliation(s)
- D Herrán de la Gala
- Servicio de Radiodiagnóstico, Hospital Universitario Marqués de Valdecilla, Santander, Cantabria, Spain; Fundación Instituto de Investigación Marqués de Valdecilla (IDIVAL), Santander, Spain.
| | - A B Barba Arce
- Servicio de Radiodiagnóstico, Hospital Universitario Marqués de Valdecilla, Santander, Cantabria, Spain; Fundación Instituto de Investigación Marqués de Valdecilla (IDIVAL), Santander, Spain
| | - A Lamagrande Obregón
- Servicio de Radiodiagnóstico, Hospital Universitario Marqués de Valdecilla, Santander, Cantabria, Spain; Fundación Instituto de Investigación Marqués de Valdecilla (IDIVAL), Santander, Spain
| | - R M Landeras Álvaro
- Servicio de Radiodiagnóstico, Hospital Universitario Marqués de Valdecilla, Santander, Cantabria, Spain; Fundación Instituto de Investigación Marqués de Valdecilla (IDIVAL), Santander, Spain
| | - T Cobo Ruiz
- Servicio de Radiodiagnóstico, Hospital Universitario Marqués de Valdecilla, Santander, Cantabria, Spain; Fundación Instituto de Investigación Marqués de Valdecilla (IDIVAL), Santander, Spain
| | - E C Gallardo Agromayor
- Servicio de Radiodiagnóstico, Hospital Universitario Marqués de Valdecilla, Santander, Cantabria, Spain; Fundación Instituto de Investigación Marqués de Valdecilla (IDIVAL), Santander, Spain
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Carotti M, Ceccarelli L, Poliseno AC, Ribichini F, Bandinelli F, Scarano E, Farah S, Di Carlo M, Giovagnoni A, Salaffi F. Imaging of Sacroiliac Pain: The Current State-of-the-Art. J Pers Med 2024; 14:873. [PMID: 39202065 PMCID: PMC11355172 DOI: 10.3390/jpm14080873] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2024] [Revised: 08/12/2024] [Accepted: 08/15/2024] [Indexed: 09/03/2024] Open
Abstract
Pain in the sacroiliac (SI) region is a common clinical manifestation, often caused by diseases involving the SI joints. This is typically due to inflammation or degenerative changes, while infections or cancer are less frequent causes. The SI joint is challenging to image accurately because of its distinct anatomical characteristics. For an accurate diagnosis, conventional radiography often needs to be supplemented with more precise methods such as magnetic resonance imaging (MRI) or computed tomography (CT). Sacroiliitis, a common presenting feature of axial spondyloarthritis (axial SpA), manifests as bone marrow edema, erosions, sclerosis, and joint space narrowing. Septic sacroiliitis and repetitive stress injuries in sports can also cause changes resembling inflammatory sacroiliitis. Other conditions, such as osteitis condensans ilii (OCI), can mimic the radiologic characteristics of sacroiliitis. Inflammatory lesions are diagnosed by concurrent erosions, hyperostosis, and ankylosis. Ligament ossifications or mechanical stress can also result in arthritic disorders. Determining the exact diagnosis can be aided by the distribution of the lesions. Inflammatory lesions can affect any part of the articulation, including the inferior and posterior portions. Mechanical lesions, such as those seen in OCI, often occur in the anterior middle region of the joint. In cases of idiopathic skeletal hyperostosis, ligament ossification is found at the joint borders. This pictorial essay describes common SI joint problems, illustrated with multimodal imaging data. We, also, discuss strategies for selecting the best imaging modalities, along with imaging pitfalls, key points, and approaches for treating patients with suspected inflammatory back pain.
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Affiliation(s)
- Marina Carotti
- Clinica di Radiologia, Dipartimento di Scienze Radiologiche, Azienda Ospedaliero-Universitaria delle Marche, 60126 Ancona, Italy; (M.C.); (A.C.P.); (F.R.); (A.G.)
| | - Luca Ceccarelli
- Radiology Unit, Department of Experimental, Diagnostic and Speciality Medicine, Sant’Orsola Hospital, University of Bologna, Via Albertoni 15, 40138 Bologna, Italy;
| | - Anna Claudia Poliseno
- Clinica di Radiologia, Dipartimento di Scienze Radiologiche, Azienda Ospedaliero-Universitaria delle Marche, 60126 Ancona, Italy; (M.C.); (A.C.P.); (F.R.); (A.G.)
| | - Francesca Ribichini
- Clinica di Radiologia, Dipartimento di Scienze Radiologiche, Azienda Ospedaliero-Universitaria delle Marche, 60126 Ancona, Italy; (M.C.); (A.C.P.); (F.R.); (A.G.)
| | - Francesca Bandinelli
- Rheumatology Department, San Giovanni di Dio Hospital, USL Tuscany Center, 50143 Florence, Italy;
| | - Enrico Scarano
- Department of Radiology, “San Carlo” Hospital, 85100 Potenza, Italy;
| | - Sonia Farah
- Rheumatology Unit, “Carlo Urbani” Hospital, Università Politecnica delle Marche, 60035 Jesi, Italy; (S.F.); (F.S.)
| | - Marco Di Carlo
- Rheumatology Unit, “Carlo Urbani” Hospital, Università Politecnica delle Marche, 60035 Jesi, Italy; (S.F.); (F.S.)
| | - Andrea Giovagnoni
- Clinica di Radiologia, Dipartimento di Scienze Radiologiche, Azienda Ospedaliero-Universitaria delle Marche, 60126 Ancona, Italy; (M.C.); (A.C.P.); (F.R.); (A.G.)
| | - Fausto Salaffi
- Rheumatology Unit, “Carlo Urbani” Hospital, Università Politecnica delle Marche, 60035 Jesi, Italy; (S.F.); (F.S.)
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He Z, Tung NTC, Yahara Y, Makino H, Yasuda T, Seki S, Suzuki K, Futakawa H, Kamei K, Kawaguchi Y. Association between serum interleukin-17 levels and ectopic bone formation in OPLL patients with DISH. Rheumatology (Oxford) 2024; 63:2268-2277. [PMID: 37889295 DOI: 10.1093/rheumatology/kead555] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2023] [Revised: 08/25/2023] [Accepted: 09/27/2023] [Indexed: 10/28/2023] Open
Abstract
OBJECTIVE To investigate the relationship between the severity and morphology of heterotopic ossification in the spinal ligaments including sacroiliac (SI) joints, and serum interleukin-17 (IL-17) levels in patients with ossification of the posterior longitudinal ligament (OPLL) with or without diffuse idiopathic skeletal hyperostosis (DISH), as well as a non-OPLL group. METHODS A total of 103 patients with OPLL [DISH (-), n = 50; DISH (+), n = 53] and 53 age- and gender-matched controls were included. The serum levels of IL-17 were analysed, and the severity of ectopic ossification and the morphology of ectopic bone formation were evaluated. The SI joint morphological variations were categorized into four types. RESULTS No significant differences were found in serum IL-17 levels between the OPLL and control groups. However, the DISH (+) group showed higher IL-17 levels than the DISH (-) group, especially in female patients (P = 0.003). Additionally, IL-17 levels were positively correlated with the number of flat vertebral units, this being one of the characteristic DISH ossification types (R2 = 0.199, P = 0.012). IL-17 levels in the type showing bridging osteophyte and bone fusion were significantly higher in the DISH (+) group than in the DISH (-) group. CONCLUSION The morphological characteristics of paravertebral bone formation in the entire spine, including the SI joint, are likely associated with serum IL-17 levels in OPLL. These findings provide pathological and serological evidence of local inflammation contributing to paravertebral ossification of OPLL patients.
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Affiliation(s)
- Zhongyuan He
- Department of Orthopaedic Surgery, Faculty of Medicine, University of Toyama, Toyama, Japan
- Department of Orthopaedics, The Second Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Nguyen Tran Canh Tung
- Department of Orthopaedic Surgery, Faculty of Medicine, University of Toyama, Toyama, Japan
- Department of Trauma and Orthopaedic Surgery, Vietnam Military Medical University, Hanoi, Vietnam
| | - Yasuhito Yahara
- WPI-Immunology Frontier Research Center, Osaka University, Suita, Osaka, Japan
| | - Hiroto Makino
- Department of Orthopaedic Surgery, Faculty of Medicine, University of Toyama, Toyama, Japan
| | - Taketoshi Yasuda
- Department of Orthopaedic Surgery, Faculty of Medicine, University of Toyama, Toyama, Japan
| | - Shoji Seki
- Department of Orthopaedic Surgery, Faculty of Medicine, University of Toyama, Toyama, Japan
| | - Kayo Suzuki
- Department of Orthopaedic Surgery, Faculty of Medicine, University of Toyama, Toyama, Japan
| | - Hayato Futakawa
- Department of Orthopaedic Surgery, Faculty of Medicine, University of Toyama, Toyama, Japan
| | - Katsuhiko Kamei
- Department of Orthopaedic Surgery, Faculty of Medicine, University of Toyama, Toyama, Japan
| | - Yoshiharu Kawaguchi
- Department of Orthopaedic Surgery, Faculty of Medicine, University of Toyama, Toyama, Japan
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Van Den Berghe T, Babin D, Chen M, Callens M, Brack D, Maes H, Lievens J, Lammens M, Van Sumere M, Morbée L, Hautekeete S, Schatteman S, Jacobs T, Thooft WJ, Herregods N, Huysse W, Jaremko JL, Lambert R, Maksymowych W, Laloo F, Baraliakos X, De Craemer AS, Carron P, Van den Bosch F, Elewaut D, Jans L. Neural network algorithm for detection of erosions and ankylosis on CT of the sacroiliac joints: multicentre development and validation of diagnostic accuracy. Eur Radiol 2023; 33:8310-8323. [PMID: 37219619 DOI: 10.1007/s00330-023-09704-y] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2022] [Revised: 03/03/2023] [Accepted: 03/25/2023] [Indexed: 05/24/2023]
Abstract
OBJECTIVES To evaluate the feasibility and diagnostic accuracy of a deep learning network for detection of structural lesions of sacroiliitis on multicentre pelvic CT scans. METHODS Pelvic CT scans of 145 patients (81 female, 121 Ghent University/24 Alberta University, 18-87 years old, mean 40 ± 13 years, 2005-2021) with a clinical suspicion of sacroiliitis were retrospectively included. After manual sacroiliac joint (SIJ) segmentation and structural lesion annotation, a U-Net for SIJ segmentation and two separate convolutional neural networks (CNN) for erosion and ankylosis detection were trained. In-training validation and tenfold validation testing (U-Net-n = 10 × 58; CNN-n = 10 × 29) on a test dataset were performed to assess performance on a slice-by-slice and patient level (dice coefficient/accuracy/sensitivity/specificity/positive and negative predictive value/ROC AUC). Patient-level optimisation was applied to increase the performance regarding predefined statistical metrics. Gradient-weighted class activation mapping (Grad-CAM++) heatmap explainability analysis highlighted image parts with statistically important regions for algorithmic decisions. RESULTS Regarding SIJ segmentation, a dice coefficient of 0.75 was obtained in the test dataset. For slice-by-slice structural lesion detection, a sensitivity/specificity/ROC AUC of 95%/89%/0.92 and 93%/91%/0.91 were obtained in the test dataset for erosion and ankylosis detection, respectively. For patient-level lesion detection after pipeline optimisation for predefined statistical metrics, a sensitivity/specificity of 95%/85% and 82%/97% were obtained for erosion and ankylosis detection, respectively. Grad-CAM++ explainability analysis highlighted cortical edges as focus for pipeline decisions. CONCLUSIONS An optimised deep learning pipeline, including an explainability analysis, detects structural lesions of sacroiliitis on pelvic CT scans with excellent statistical performance on a slice-by-slice and patient level. CLINICAL RELEVANCE STATEMENT An optimised deep learning pipeline, including a robust explainability analysis, detects structural lesions of sacroiliitis on pelvic CT scans with excellent statistical metrics on a slice-by-slice and patient level. KEY POINTS • Structural lesions of sacroiliitis can be detected automatically in pelvic CT scans. • Both automatic segmentation and disease detection yield excellent statistical outcome metrics. • The algorithm takes decisions based on cortical edges, rendering an explainable solution.
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Affiliation(s)
- Thomas Van Den Berghe
- Department of Radiology and Medical Imaging, Ghent University Hospital, Corneel Heymanslaan 10, 9000, Ghent, Belgium.
| | - Danilo Babin
- Department of Telecommunication and Information Processing - Image Processing and Interpretation (TELIN-IPI), Faculty of Engineering and Architecture, Ghent University - IMEC, Sint-Pietersnieuwstraat 41, 9000, Ghent, Belgium
| | - Min Chen
- Department of Radiology, Peking University Shenzhen Hospital, Shenzhen, 518036, China
| | - Martijn Callens
- Department of Radiology and Medical Imaging, Ghent University Hospital, Corneel Heymanslaan 10, 9000, Ghent, Belgium
| | - Denim Brack
- Department of Radiology and Medical Imaging, Ghent University Hospital, Corneel Heymanslaan 10, 9000, Ghent, Belgium
| | - Helena Maes
- Department of Radiology and Medical Imaging, Ghent University Hospital, Corneel Heymanslaan 10, 9000, Ghent, Belgium
| | - Jan Lievens
- Department of Radiology and Medical Imaging, Ghent University Hospital, Corneel Heymanslaan 10, 9000, Ghent, Belgium
| | - Marie Lammens
- Department of Radiology and Medical Imaging, Ghent University Hospital, Corneel Heymanslaan 10, 9000, Ghent, Belgium
| | - Maxime Van Sumere
- Department of Radiology and Medical Imaging, Ghent University Hospital, Corneel Heymanslaan 10, 9000, Ghent, Belgium
| | - Lieve Morbée
- Department of Radiology and Medical Imaging, Ghent University Hospital, Corneel Heymanslaan 10, 9000, Ghent, Belgium
| | - Simon Hautekeete
- Department of Radiology and Medical Imaging, Ghent University Hospital, Corneel Heymanslaan 10, 9000, Ghent, Belgium
| | - Stijn Schatteman
- Department of Radiology and Medical Imaging, Ghent University Hospital, Corneel Heymanslaan 10, 9000, Ghent, Belgium
| | - Tom Jacobs
- Department of Radiology and Medical Imaging, Ghent University Hospital, Corneel Heymanslaan 10, 9000, Ghent, Belgium
| | - Willem-Jan Thooft
- Department of Radiology and Medical Imaging, Ghent University Hospital, Corneel Heymanslaan 10, 9000, Ghent, Belgium
| | - Nele Herregods
- Department of Radiology and Medical Imaging, Ghent University Hospital, Corneel Heymanslaan 10, 9000, Ghent, Belgium
| | - Wouter Huysse
- Department of Radiology and Medical Imaging, Ghent University Hospital, Corneel Heymanslaan 10, 9000, Ghent, Belgium
| | - Jacob L Jaremko
- Department of Radiology and Diagnostic Imaging and Rheumatology, University of Alberta, 8440 122 Street NW, Edmonton, Alberta, T6G 2B7, Canada
| | - Robert Lambert
- Department of Radiology and Diagnostic Imaging and Rheumatology, University of Alberta, 8440 122 Street NW, Edmonton, Alberta, T6G 2B7, Canada
| | - Walter Maksymowych
- Department of Radiology and Diagnostic Imaging and Rheumatology, University of Alberta, 8440 122 Street NW, Edmonton, Alberta, T6G 2B7, Canada
| | - Frederiek Laloo
- Department of Radiology and Medical Imaging, Ghent University Hospital, Corneel Heymanslaan 10, 9000, Ghent, Belgium
| | - Xenofon Baraliakos
- Rheumazentrum Ruhrgebiet Herne, Ruhr-University Bochum, Claudiusstraße 45, 44649, Herne, Germany
| | - Ann-Sophie De Craemer
- Department of Rheumatology, Ghent University Hospital, Corneel Heymanslaan 10, 9000, Ghent, Belgium
- Vlaams Instituut voor Biotechnologie (VIB) Centre for Inflammation Research (IRC), Ghent University, Technologiepark 927, 9052, Ghent, Belgium
| | - Philippe Carron
- Department of Rheumatology, Ghent University Hospital, Corneel Heymanslaan 10, 9000, Ghent, Belgium
- Vlaams Instituut voor Biotechnologie (VIB) Centre for Inflammation Research (IRC), Ghent University, Technologiepark 927, 9052, Ghent, Belgium
| | - Filip Van den Bosch
- Department of Rheumatology, Ghent University Hospital, Corneel Heymanslaan 10, 9000, Ghent, Belgium
- Vlaams Instituut voor Biotechnologie (VIB) Centre for Inflammation Research (IRC), Ghent University, Technologiepark 927, 9052, Ghent, Belgium
| | - Dirk Elewaut
- Department of Rheumatology, Ghent University Hospital, Corneel Heymanslaan 10, 9000, Ghent, Belgium
- Vlaams Instituut voor Biotechnologie (VIB) Centre for Inflammation Research (IRC), Ghent University, Technologiepark 927, 9052, Ghent, Belgium
| | - Lennart Jans
- Department of Radiology and Medical Imaging, Ghent University Hospital, Corneel Heymanslaan 10, 9000, Ghent, Belgium
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Fakih O, Ramon A, Chouk M, Prati C, Ornetti P, Wendling D, Verhoeven F. Comparison of sacroiliac CT findings in patients with and without ankylosing spondylitis aged over 50 years. Sci Rep 2023; 13:17901. [PMID: 37863967 PMCID: PMC10589274 DOI: 10.1038/s41598-023-45082-7] [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: 07/07/2023] [Accepted: 10/16/2023] [Indexed: 10/22/2023] Open
Abstract
Diagnosis of axial spondyloarthritis (axSpA) is nowadays commonly made with the help of pelvic radiography or magnetic resonance imaging (MRI). However, there is an important inter-observer variability in radiography, and MRI is subject to possible false positives and is not the best modality for studying structural lesions. Conversely, pelvic computed tomography (CT) has excellent specificity and appears to be more effective than radiography for the diagnosis of ankylosing spondylitis (AS). However, its findings in patients over 50 years of age have not yet been studied. The objectives of this study were to describe the CT characteristics of sacro-iliac joints (SIJ) and the presence of intra-articular gas in patients with AS aged over 50 years and to compare them with controls of the same age and sex. This two-center, cross-sectional, observational study was performed using the medical records of the rheumatology departments of two University Hospitals. We included patients with a clinical diagnosis of axSpA, who had both definite radiographic sacroiliitis according to the modified New York criteria and met the ASAS 2009 criteria for axSpA (that is, AS), and who had undergone any CT scan including the whole SIJ. Each patient was matched for age and sex to a control randomly selected on the Picture Archiving and Communication System (PACS), symptomatic or asymptomatic, and without spondyloarthritis. For each individual, CT scans were interpreted blindly by two independent rheumatologists and scored for joint space narrowing (JSN), erosions, sclerosis, intra-articular gas, and diffuse idiopathic skeletal hyperostosis (DISH). Ninety patients and 90 controls were included in the study. The rates of positive JSN, erosion, and sclerosis scores were higher in the AS group (91% vs. 21%, p < 0.0001; 31% vs. 2%, p < 0.0001; 27% vs. 13%, p = 0.03, respectively), but the rates of intra-articular gas and DISH were higher in the control group (24% vs. 68%, p < 0.0001; 7% vs. 33%, p < 0.0001, respectively). 58% of patients had complete bilateral ankylosis. A total of 83 (92.2%) patients had a CT scan considered positive for AS, compared with only seven controls (7.8%). Sclerosis and erosions were predominantly on the anterosuperior part and iliac side of the joint in controls and were more diffuse in patients with AS. CT findings in patients with AS over 50 years of age are mostly represented by changes in the joint space; patients with AS have more erosions and sclerosis changes, but less intra-articular gas than controls.
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Affiliation(s)
- Olivier Fakih
- Service de rhumatologie, CHU de Besançon, 3 boulevard Fleming, 25030, Besançon Cedex, France.
| | - André Ramon
- Service de rhumatologie, CHU de Dijon, 14 rue Gaffarel, BP 77908, 21079, Dijon Cedex, France
| | - Mickaël Chouk
- Service de rhumatologie, CHU de Besançon, 3 boulevard Fleming, 25030, Besançon Cedex, France
| | - Clément Prati
- Service de rhumatologie, CHU de Besançon, 3 boulevard Fleming, 25030, Besançon Cedex, France
- EA 4267 "PEPITE", UFR Santé, Franche-Comté University, 19 rue Ambroise Paré, bâtiment S, 25030, Besançon Cedex, France
| | - Paul Ornetti
- Service de rhumatologie, CHU de Dijon, 14 rue Gaffarel, BP 77908, 21079, Dijon Cedex, France
| | - Daniel Wendling
- Service de rhumatologie, CHU de Besançon, 3 boulevard Fleming, 25030, Besançon Cedex, France
- EA 4266 "EPILAB", UFR Santé, Franche-Comté University, 19 rue Ambroise Paré, bâtiment S, 25030, Besançon Cedex, France
| | - Frank Verhoeven
- Service de rhumatologie, CHU de Besançon, 3 boulevard Fleming, 25030, Besançon Cedex, France
- EA 4267 "PEPITE", UFR Santé, Franche-Comté University, 19 rue Ambroise Paré, bâtiment S, 25030, Besançon Cedex, France
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Tanaka A, Shimizu T, Kawai T, Fujibayashi S, Murata K, Matsuda S, Otsuki B. Risk of further surgery after decompression in patients with diffuse idiopathic skeletal hyperostosis extending to the lumbar segments: focus on the number of residual lumbar/lumbosacral and sacroiliac mobile segments. EUROPEAN SPINE JOURNAL : OFFICIAL PUBLICATION OF THE EUROPEAN SPINE SOCIETY, THE EUROPEAN SPINAL DEFORMITY SOCIETY, AND THE EUROPEAN SECTION OF THE CERVICAL SPINE RESEARCH SOCIETY 2023; 32:2336-2343. [PMID: 37219710 DOI: 10.1007/s00586-023-07773-7] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/27/2023] [Revised: 04/19/2023] [Accepted: 05/09/2023] [Indexed: 05/24/2023]
Abstract
PURPOSE Patients with diffuse idiopathic skeletal hyperostosis (DISH) that extends to the lumbar segments (L-DISH) have a high risk of further surgery after lumbar decompression. However, few studies have focused on the ankylosis status of the residual caudal segments, including the sacroiliac joint (SIJ). We hypothesized that patients with more ankylosed segments beside the operated level, including the SIJ, would be at a higher risk of further surgery. METHODS A total of 79 patients with L-DISH who underwent decompression surgery for lumbar stenosis at a single academic institution between 2007 and 2021 were enrolled. The baseline demographics and radiological findings by CT imaging focusing on the ankylosing condition of the residual lumbar segments and SIJ were collected. Cox proportional hazard analysis was conducted to investigate the risk factors for further surgery after lumbar decompression. RESULTS The rate of further surgery was 37.9% during an average of 48.8 months of follow-up. Cox proportional hazard analysis demonstrated that the presence of fewer than three segments of non-operated mobile caudal segments was an independent predictor for further surgery (including both the same and adjacent levels) after lumbar decompression (adjusted hazard ratio 2.53, 95%CI [1.12-5.70]). CONCLUSIONS L-DISH patients with fewer than three mobile caudal segments besides index decompression levels are at a high risk of further surgery. Ankylosis status of the residual lumbar segments and SIJ should be thoroughly evaluated using CT during preoperative planning.
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Affiliation(s)
- Atsushi Tanaka
- Department of Orthopaedic Surgery, Graduate School of Medicine, Kyoto University, 54 Kawahara-cho, Shogoin, Sakyo, Kyoto, 606-8507, Japan
| | - Takayoshi Shimizu
- Department of Orthopaedic Surgery, Graduate School of Medicine, Kyoto University, 54 Kawahara-cho, Shogoin, Sakyo, Kyoto, 606-8507, Japan.
| | - Toshiyuki Kawai
- Department of Orthopaedic Surgery, Graduate School of Medicine, Kyoto University, 54 Kawahara-cho, Shogoin, Sakyo, Kyoto, 606-8507, Japan
| | - Shunsuke Fujibayashi
- Department of Orthopaedic Surgery, Graduate School of Medicine, Kyoto University, 54 Kawahara-cho, Shogoin, Sakyo, Kyoto, 606-8507, Japan
| | - Koichi Murata
- Department of Orthopaedic Surgery, Graduate School of Medicine, Kyoto University, 54 Kawahara-cho, Shogoin, Sakyo, Kyoto, 606-8507, Japan
| | - Shuichi Matsuda
- Department of Orthopaedic Surgery, Graduate School of Medicine, Kyoto University, 54 Kawahara-cho, Shogoin, Sakyo, Kyoto, 606-8507, Japan
| | - Bungo Otsuki
- Department of Orthopaedic Surgery, Graduate School of Medicine, Kyoto University, 54 Kawahara-cho, Shogoin, Sakyo, Kyoto, 606-8507, Japan
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Eshed I. Imaging Characteristics of Diffuse Idiopathic Skeletal Hyperostosis: More Than Just Spinal Bony Bridges. Diagnostics (Basel) 2023; 13:diagnostics13030563. [PMID: 36766667 PMCID: PMC9914876 DOI: 10.3390/diagnostics13030563] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2022] [Revised: 01/24/2023] [Accepted: 01/30/2023] [Indexed: 02/05/2023] Open
Abstract
Diffuse idiopathic skeletal hyperostosis (DISH) is a systemic condition characterized by new bone formation and enthesopathies of the axial and peripheral skeleton. The pathogenesis of DISH is not well understood, and it is currently considered a non-inflammatory condition with an underlying metabolic derangement. Currently, DISH diagnosis relies on the Resnick and Niwayama criteria, which encompass end-stage disease with an already ankylotic spine. Imaging characterization of the axial and peripheral skeleton in DISH subjects may potentially help identify earlier diagnostic criteria and provide further data for deciphering the general pathogenesis of DISH and new bone formation. In the current review, we aim to summarize and characterize axial and peripheral imaging findings of the skeleton related to DISH, along with their clinical and pathogenetic relevance.
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Affiliation(s)
- Iris Eshed
- Department of Diagnostic Imaging, Sheba Medical Center, Tel Hashomer, Affiliated with the Sackler School of Medicine, Tel Aviv University, Tel-Aviv 5265601, Israel
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Takahashi T, Yoshii T, Mori K, Kobayashi S, Inoue H, Tada K, Tamura N, Hirai T, Sugimura N, Nagoshi N, Maki S, Katsumi K, Koda M, Murata K, Takeuchi K, Nakashima H, Imagama S, Kawaguchi Y, Yamazaki M, Okawa A. Comparison of radiological characteristics between diffuse idiopathic skeletal hyperostosis and ankylosing spondylitis: a multicenter study. Sci Rep 2023; 13:1849. [PMID: 36725891 PMCID: PMC9892029 DOI: 10.1038/s41598-023-28946-w] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2022] [Accepted: 01/27/2023] [Indexed: 02/03/2023] Open
Abstract
To evaluate the radiological differences between diffuse idiopathic skeletal hyperostosis (DISH) and ankylosing spondylitis (AS) using whole spine computed tomography (CT), including the spine and sacroiliac joint (SIJ). The ossification and bridging of spinal ligament and fusion of the facet joint and SIJ were evaluated in 111 patients who were diagnosed with DISH and 27 patients with AS on the whole spine CT. The number of anterior bridging and shape of bridging (candle-wax-type/ smooth-type) were also evaluated. We further evaluated patients with DISH and AS by matching their age and sex. Complete SIJ fusion was more common in AS, whereas anterior and posterior bony bridging around SIJ was more common in DISH. However, 63% of patients with DISH had a partial or complete fusion. In spinal anterior bony bridging, the majority of patients with AS had the smooth-type, whereas those with DISH had the candle-wax-type. However, some of the patients with DISH (11%) had smooth-type. Intervertebral facet joint fusion is more common in AS. The number of anterior spinal bony bridging was greater in AS than in DISH, especially in the lumbar spine. These results are useful in differentiating DISH from AS and should therefore be considered when making a diagnosis.
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Affiliation(s)
- Takuya Takahashi
- Department of Orthopedic Surgery, Tokyo Medical and Dental University, 1-5-45 Yushima, Bunkyo-ku, Tokyo, 113-8510, Japan
| | - Toshitaka Yoshii
- Department of Orthopedic Surgery, Tokyo Medical and Dental University, 1-5-45 Yushima, Bunkyo-ku, Tokyo, 113-8510, Japan.
| | - Kanji Mori
- Department of Orthopedic Surgery, Shiga University of Medical Science, Ōtsu, Shiga, Japan
| | - Shigeto Kobayashi
- Department of Internal Medicine, Juntendo University Koshigaya Hospital, Juntendo University School of Medicine, Koshigaya, Saitama, Japan
| | - Hisashi Inoue
- Department of Orthopedic Surgery, Juntendo University School of Medicine, Bunkyo-ku, Tokyo, Japan
| | - Kurisu Tada
- Department of Internal Medicine and Rheumatology, Juntendo University School of Medicine, Bunkyo-ku, Tokyo, Japan
| | - Naoto Tamura
- Department of Internal Medicine and Rheumatology, Juntendo University School of Medicine, Bunkyo-ku, Tokyo, Japan
| | - Takashi Hirai
- Department of Orthopedic Surgery, Tokyo Medical and Dental University, 1-5-45 Yushima, Bunkyo-ku, Tokyo, 113-8510, Japan
| | - Nobuhiro Sugimura
- Tokyo Medical and Dental University School of Medicine, Bunkyo-ku, Tokyo, Japan
| | - Narihito Nagoshi
- Department of Orthopedic Surgery, School of Medicine, Keio University, Shinjuku-ku, Tokyo, Japan
| | - Satoshi Maki
- Department of Orthopedic Surgery, Graduate School of Medicine, Chiba University, Chiba, Chiba, Japan
| | - Keiichi Katsumi
- Department of Orthopedic Surgery, Niigata Central Hospital, Niigata, Niigata, Japan
| | - Masao Koda
- Department of Orthopedic Surgery, Faculty of Medicine, University of Tsukuba, Tsukuba, Ibaraki, Japan
| | - Kazuma Murata
- Department of Orthopedic Surgery, Tokyo Medical University, Shinjuku-ku, Tokyo, Japan
| | - Kazuhiro Takeuchi
- Department of Orthopedic Surgery, National Hospital Organization Okayama Medical Center, Okayama, Okayama, Japan
| | - Hiroaki Nakashima
- Department of Orthopedic Surgery, Nagoya University Graduate School of Medicine, Nagoya, Aichi, Japan
| | - Shiro Imagama
- Department of Orthopedic Surgery, Nagoya University Graduate School of Medicine, Nagoya, Aichi, Japan
| | - Yoshiharu Kawaguchi
- Department of Orthopedic Surgery, Faculty of Medicine, University of Toyama, Toyama, Toyama, Japan
| | - Masashi Yamazaki
- Department of Orthopedic Surgery, Faculty of Medicine, University of Tsukuba, Tsukuba, Ibaraki, Japan
| | - Atsushi Okawa
- Department of Orthopedic Surgery, Tokyo Medical and Dental University, 1-5-45 Yushima, Bunkyo-ku, Tokyo, 113-8510, Japan
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Jurik AG. Diagnostics of Sacroiliac Joint Differentials to Axial Spondyloarthritis Changes by Magnetic Resonance Imaging. J Clin Med 2023; 12:1039. [PMID: 36769687 PMCID: PMC9917960 DOI: 10.3390/jcm12031039] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2022] [Revised: 01/22/2023] [Accepted: 01/25/2023] [Indexed: 01/31/2023] Open
Abstract
The diagnosis of axial spondyloarthritis (axSpA) is usually based on a pattern of imaging and clinical findings due to the lack of diagnostic criteria. The increasing use of magnetic resonance imaging (MRI) of the sacroiliac joints (SIJ) to establish the diagnosis early in the pre-radiographic phase has resulted in a shift in the paradigm with an increasing frequency of axSpA diagnoses and a changed sex distribution. Non-radiographic axSpA affects males and females nearly equally, whereas ankylosing spondylitis predominantly occurs in males. The MRI-based increasing frequency of axSpA in women is mainly due to the presence of subchondral bone marrow edema (BME) on fluid-sensitive MR sequences, which may be a non-specific finding in both women and men. Due to the somewhat different pelvic tilt and SIJ anatomy, women are more prone than men to develop strain-related MRI changes and may have pregnancy-related changes. Awareness of non-specific subchondral BME at the SIJ is important as it can imply a risk for an incorrect SpA diagnosis, especially as the clinical manifestations of axSpA may also be non-specific. Knowledge of relevant MRI and clinical features of differential diagnoses is needed in the diagnostic workout of patients with suspected axSpA considering that non-SpA-related SIJ conditions are more common in patients with low back or buttock pain than axSpA sacroiliitis. The purpose of this review was to present current knowledge of the most frequent differential diagnoses to axSpA sacroiliitis by MRI taking the clinical characteristics into account.
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Affiliation(s)
- Anne Grethe Jurik
- Department of Radiology, Aarhus University Hospital, Palle Juul-Jensens Boulevard 99, 8200 Aarhus, Denmark;
- Department of Clinical Medicine, Aarhus University, Palle Juul-Jensens Boulevard 82, 8200 Aarhus, Denmark
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Gahleitner A, Pamnani S, Huschbeck A, Petersein J, Dengler J, Lenga P. Spontaneous ankylosis of the sacroiliac joint: prevalence and risk factors. EUROPEAN JOURNAL OF ORTHOPAEDIC SURGERY & TRAUMATOLOGY : ORTHOPEDIE TRAUMATOLOGIE 2022:10.1007/s00590-022-03359-z. [PMID: 35980540 DOI: 10.1007/s00590-022-03359-z] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/22/2022] [Accepted: 08/08/2022] [Indexed: 06/15/2023]
Abstract
PURPOSE Evidence on spontaneous sacroiliac joint (SIJ) ankylosis is lacking. The aim of this analysis was to assess the prevalence of spontaneous SIJ ankylosis and examined different ankylosis patterns and risk factors for spontaneous SIJ ankylosis. METHODS Pelvic computed tomography (CT) data of 102 consecutive patients with spinal pathologies were compared to CT of a control group consisting of 102 consecutive patients without spinal pathologies. SIJ ankylosis patterns and risk factors for SIJ ankylosis, such as age, sex, and previous spinal fusion surgery were examined. RESULTS Overall, 117 men and 86 women were examined between 2019 and 2020. Non-spinal patients were significantly older (mean age 70.5 years, standard deviation [SD] 11.4) than those in the spinal group (mean age 65.3 years, SD 14.3; p = 0.005). The prevalence of SIJ ankylosis was 24.5% in the non-spinal group and 23.5% in the spinal group. The anterior ankylosis type prevalence was 91.7% in the spinal group, compared to 48.0% in the non-spinal group. Factors associated with SIJ ankylosis were older age (odds ratio [OR] 1.04, 95% confidence interval [CI] 1.01-1.07, p = 0.004) and male sex (OR 5.14, 95% CI 2.29-11.55, p < 0.001). CONCLUSION Spontaneous ankylosis of the SIJ was a frequent phenomenon in patients with and without spinal pathologies and more likely with older age and male sex. Anterior type SIJ ankylosis was substantially more frequent in patients with spinal pathologies. This may be due to strain exerted on the anterior SIJ aspects in patients with compromised posture due to spine degeneration.
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Affiliation(s)
- Adrian Gahleitner
- Faculty of Health Sciences Brandenburg, Brandenburg Medical School Theodor Fontane, Campus Bad Saarow, Bad Saarow, Germany
- Department of Neurosurgery, HELIOS Hospital Bad Saarow, Brandenburg Medical School Theodor Fontane, Pieskower Strasse 33, 15526, Bad Saarow, Germany
| | - Sunisha Pamnani
- Faculty of Health Sciences Brandenburg, Brandenburg Medical School Theodor Fontane, Campus Bad Saarow, Bad Saarow, Germany
- Department of Neurosurgery, HELIOS Hospital Bad Saarow, Brandenburg Medical School Theodor Fontane, Pieskower Strasse 33, 15526, Bad Saarow, Germany
| | - Alina Huschbeck
- Faculty of Health Sciences Brandenburg, Brandenburg Medical School Theodor Fontane, Campus Bad Saarow, Bad Saarow, Germany
- Department of Neurosurgery, HELIOS Hospital Bad Saarow, Brandenburg Medical School Theodor Fontane, Pieskower Strasse 33, 15526, Bad Saarow, Germany
| | - Jan Petersein
- Department of Radiology, HELIOS Hospital Bad Saarow, Bad Saarow, Germany
| | - Julius Dengler
- Faculty of Health Sciences Brandenburg, Brandenburg Medical School Theodor Fontane, Campus Bad Saarow, Bad Saarow, Germany.
- Department of Neurosurgery, HELIOS Hospital Bad Saarow, Brandenburg Medical School Theodor Fontane, Pieskower Strasse 33, 15526, Bad Saarow, Germany.
| | - Pavlina Lenga
- Faculty of Health Sciences Brandenburg, Brandenburg Medical School Theodor Fontane, Campus Bad Saarow, Bad Saarow, Germany
- Department of Neurosurgery, HELIOS Hospital Bad Saarow, Brandenburg Medical School Theodor Fontane, Pieskower Strasse 33, 15526, Bad Saarow, Germany
- Department of Neurosurgery, Heidelberg University Hospital, Heidelberg, Germany
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Mease P, Deodhar A. Differentiating nonradiographic axial spondyloarthritis from its mimics: a narrative review. BMC Musculoskelet Disord 2022; 23:240. [PMID: 35279103 PMCID: PMC8917757 DOI: 10.1186/s12891-022-05073-7] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/10/2021] [Accepted: 01/29/2022] [Indexed: 11/18/2022] Open
Abstract
Background Optimal treatment of nonradiographic axial spondyloarthritis depends on accurate and timely diagnosis of the underlying disease; however, patients present with common symptoms that, in the absence of radiographic changes, may confound diagnosis. Methods and findings In this narrative review, a PubMed literature search was conducted through January 2021, with no date limits, to identify English-language publications discussing classification of nonradiographic axial spondyloarthritis, with an emphasis on clinical features and presentation, differential diagnoses, and mimics of disease. This review describes the epidemiology, clinical features, and burden of disease of nonradiographic axial spondyloarthritis as it relates to the overall axial spondyloarthritis spectrum and discusses mimics and differential diagnoses of nonradiographic axial spondyloarthritis that should be considered when evaluating patients with suspected nonradiographic axial spondyloarthritis in clinical practice. Conclusions Recognition of clinical features of nonradiographic axial spondyloarthritis, along with an understanding of comorbid conditions such as fibromyalgia, allows for differentiation from its mimics. Appropriate diagnosis of nonradiographic axial spondyloarthritis is important for aggressive management of disease to reduce pain, avoid loss of function, and improve quality of life.
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Diffuse Idiopathic Skeletal Hyperostosis of the Spine: Pathophysiology, Diagnosis, and Management. J Am Acad Orthop Surg 2021; 29:1044-1051. [PMID: 34559699 DOI: 10.5435/jaaos-d-20-01344] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/10/2020] [Accepted: 09/02/2021] [Indexed: 02/01/2023] Open
Abstract
Diffuse idiopathic skeletal hyperostosis (DISH) is an ankylosing condition affecting up to 32.5% of the general cohort. Although often asymptomatic, affected individuals may present with back pain, stiffness, dysphagia, functional decline, and neurologic deficits. Radiographically, DISH is characterized by flowing ossifications along the anterior spine spanning ≥4 vertebral bodies. Although the etiology of DISH remains unknown, diabetes mellitus and other metabolic derangements are strongly associated with DISH. Importantly, spinal ankylosis in DISH predisposes patients to unstable spine fractures from low-energy trauma, and careful consideration must be taken in managing these patients. This article reviews the epidemiology and pathophysiology of DISH, and its clinical findings, diagnostic criteria, and management.
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Mader R, Baraliakos X, Eshed I, Novofastovski I, Bieber A, Verlaan JJ, Kiefer D, Pappone N, Atzeni F. Imaging of diffuse idiopathic skeletal hyperostosis (DISH). RMD Open 2021; 6:rmdopen-2019-001151. [PMID: 32111653 PMCID: PMC7046956 DOI: 10.1136/rmdopen-2019-001151] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2019] [Revised: 01/24/2020] [Accepted: 01/28/2020] [Indexed: 01/26/2023] Open
Abstract
Diffuse idiopathic skeletal hyperostosis (DISH) is a condition characterised by calcification and ossification of ligaments and entheses. The condition usually affects the axial skeleton, in particular, at the thoracic segment, though also other portions of the spine are often involved. DISH often involves also peripheral tendinous and/or entheseal sites either alone, or in association with the involvement of peripheral joints. At times, new bone formation involves the bone itself, but sometimes it involves joints not usually affected by osteoarthritis (OA) which result in bony enlargement of the epiphysis, joints space narrowing and a reduced range of motion. Because of the entheseal involvement, DISH can be mistaken for seronegative spondyloarthropathies or for a "simple" OA. Furthermore, other implications for the recognition of DISH include spinal fractures, difficult intubation and upper endoscopies, decreased response rates in DISH with concomitant spondyloarthritides, and increased likelihood to be affected by metabolic syndrome and cardiovascular diseases. This Atlas is intended to show the imaging finding in DISH in patients diagnosed with the condition by the Resnick classification criteria.
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Affiliation(s)
| | - Xenofon Baraliakos
- Rheumatologie Ruhr-Universität Bochum, Rheumazentrum Ruhrgebiet, Herne, Germany
| | - Iris Eshed
- Department of Radiology, Musculoskeletal imaging Center, Tel Aviv University Israel, Tel Aviv, Israel
| | | | | | - Jorrit-Jan Verlaan
- Department of Orthopedics, University Medical Center Utrecht, Utrecht, The Netherlands
| | - David Kiefer
- Rheumatologie, Rheumazentrum Ruhrgebiet, Herne, NRW, Germany.,Rheumatologie, Ruhr-Universitat Bochum, Bochum, Germany
| | - Nicola Pappone
- Rheumatology Rehabilitation, Fondazione S. Maugeri, Telese Terme, Italy
| | - Fabiola Atzeni
- Rheumatology Unit, Department of Internal and Experimental Medicine, University of Messina, Messina, Italy
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15
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Angelopoulou F, Kraniotis P, Daoussis D. DISH vs Spondyloarthritides. Mediterr J Rheumatol 2020; 31:81-83. [PMID: 32411937 PMCID: PMC7219636 DOI: 10.31138/mjr.31.1.81] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2019] [Revised: 01/18/2020] [Accepted: 01/25/2020] [Indexed: 11/06/2022] Open
Affiliation(s)
| | | | - Dimitrios Daoussis
- Patras University Hospital, University of Patras Medical School, Patras, Greece
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Abstract
PURPOSE OF REVIEW Axial spondyloarthritis (AxSpA) is a distinct clinical entity with characteristic clinical and radiographic features; however, a multitude of other metabolic, infectious and inflammatory disorders mimic it both clinically and radiographically. RECENT FINDINGS We present in this review article recent updates about the various disease entities and conditions that may mimic AxSpA and how to differentiate among them. The sensitivity and specificity of MRI in diagnosing AxSpA has limitations and needs to be interpreted in the context of the clinical picture. Interestingly, some recent studies have highlighted that a relatively high prevalence of bone marrow edema on pelvic MRIs in healthy volunteers which could even be categorized as having a 'positive MRI' as defined by Assessment of Spondyloarthritis International Society. Another study revealed that a substantial proportion of patients with suspected sacroiliitis were more commonly diagnosed with diseases other than inflammatory sacroiliitis. On the basis of these reports, it is prudent to request MRIs in the appropriate clinical context and interpreted with caution taking into considerations the wide differential diagnosis of such MRI changes. SUMMARY Highlighting the clinical pearls that differentiate disorders suspected of having sacroiliitis will lead to earlier and correct diagnosis and management; however, one must always take into considerations the radiographic and MRI findings in addition to the clinical presentations in order to make the appropriate diagnosis.
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Broitman S, Herman A, Stern M, Lidar M, Eshed I. Enthesopathy of the anterior chest wall joints in patients with diffuse idiopathic skeletal hyperostosis (DISH): a retrospective analysis of computed tomography scans. Skeletal Radiol 2020; 49:461-467. [PMID: 31501958 DOI: 10.1007/s00256-019-03307-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/29/2019] [Revised: 08/22/2019] [Accepted: 08/27/2019] [Indexed: 02/02/2023]
Abstract
PURPOSE To evaluate and characterize anterior chest wall (ACW) joint's enthesopathy on CT scans in patients with DISH compared with age- and gender-matched control group. MATERIAL AND METHODS Retrospective evaluation for enthesopathy features of ACW joints-sterno-clavicular (SCJ), manubrio-sternal (MSJ), costo-sternal 1-7 (CSJ)-on chest CT scans of subjects with DISH (Resnick criteria) and of age- and gender-matched control subjects was performed. 183 subjects (DISH: 92, control: 91); male:female: 126:57, average age: 71.7 years (range 50-94) were evaluated. Total enthesopathy scores per subjects and per each joint were compared. RESULTS Total enthesopathy score of ACW joints was significantly higher among DISH compared to controls (64.03 ± 15.1, 50.47 ± 12.4, p < 0.001). At joint level, SCJ and CSJ enthesopathy, but not MSJ was significantly more prevalent in DISH compared to controls. CONCLUSION ACW joints' enthesopathy as seen on CT scans, an entity not included in the Resnick classification criteria, is common among DISH subjects. The difference between SCJ and CSJ prevalence compared to MSJ may result from different joint type. ACW joints' enthesopathy may be considered to be included in future modified radiographic criteria for DISH.
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Affiliation(s)
- Shani Broitman
- Department of Diagnostic Imaging, Sheba Medical Center, affiliated to the Sackler Faculty of Medicine, Tel Aviv University, Tel Hashomer, 52621, Tel Aviv, Israel
| | - Amir Herman
- Department of Orthopedic Surgery, Assuta Ashdod Medical Center, Ashdod, affiliated to Ben Gurion University, Beer Sheva, Israel
| | - Myriam Stern
- Department of Diagnostic Imaging, Sheba Medical Center, affiliated to the Sackler Faculty of Medicine, Tel Aviv University, Tel Hashomer, 52621, Tel Aviv, Israel
| | - Merav Lidar
- Rheumatology Unit, Sheba Medical Center, affiliated to the Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - Iris Eshed
- Department of Diagnostic Imaging, Sheba Medical Center, affiliated to the Sackler Faculty of Medicine, Tel Aviv University, Tel Hashomer, 52621, Tel Aviv, Israel.
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Salaffi F, Carotti M, Di Carlo M, Sessa F, Malavolta N, Polonara G, Giovagnoni A. Craniocervical junction involvement in musculoskeletal diseases: an area of close collaboration between rheumatologists and radiologists. Radiol Med 2020; 125:654-667. [DOI: 10.1007/s11547-020-01156-4] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2019] [Accepted: 02/10/2020] [Indexed: 02/07/2023]
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Yahara Y, Yasuda T, Kawaguchi Y, Suzuki K, Seki S, Kondo M, Makino H, Kamei K, Kanamori M, Kimura T. Sacroiliac joint variation associated with diffuse idiopathic skeletal hyperostosis. BMC Musculoskelet Disord 2020; 21:93. [PMID: 32041573 PMCID: PMC7011504 DOI: 10.1186/s12891-020-3105-z] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/01/2019] [Accepted: 01/31/2020] [Indexed: 01/15/2023] Open
Abstract
BACKGROUND Diffuse idiopathic skeletal hyperostosis (DISH) is characterized by the ossification of vertebral bodies and peripheral entheses. However, variations in sacroiliac (SI) joint change in patients with DISH have not been fully clarified. The purpose of this study was to evaluate SI joint variation in patients with DISH in comparison with a non-DISH population. METHODS A total of 342 SI joints in 171 patients (DISH+, n = 86; DISH-, n = 85) who had undergone lumbar spine surgery were analyzed by computed tomography examination. SI joint variations were classified into four types: Type 1, normal or tiny peripheral bone irregularity; Type 2, subchondral bone sclerosis and osteophytes formation; Type 3, vacuum phenomenon; and Type 4, bridging osteophyte and bony fusion. The type of bridging osteophyte in SI joints and the prevalence of ossification in each spinal segment from C1 to SI joint were also examined. RESULTS The most common SI joint variation in the DISH+ group was bony fusion (Type 4), with 71.6% exhibiting anterior paraarticular bridging. On the other hand, SI joint vacuum phenomenon (Type 3) was the most frequent change (57.1%) in the DISH- group. The middle to lower thoracic spine and SI joints were highly affected in DISH and caused bony ankylosis. CONCLUSIONS Anterior paraarticular bridging was the most common type of SI joint change in patients with DISH who underwent lumbar spine surgery. The present results regarding variations of SI joint changes in DISH should help understand the etiology of DISH.
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Affiliation(s)
- Yasuhito Yahara
- Department of Orthopaedic Surgery, Faculty of Medicine, University of Toyama, 2630 Sugitani, Toyama, 930-0194, Japan
| | - Taketoshi Yasuda
- Department of Orthopaedic Surgery, Faculty of Medicine, University of Toyama, 2630 Sugitani, Toyama, 930-0194, Japan.
| | - Yoshiharu Kawaguchi
- Department of Orthopaedic Surgery, Faculty of Medicine, University of Toyama, 2630 Sugitani, Toyama, 930-0194, Japan
| | - Kayo Suzuki
- Department of Orthopaedic Surgery, Faculty of Medicine, University of Toyama, 2630 Sugitani, Toyama, 930-0194, Japan
| | - Shoji Seki
- Department of Orthopaedic Surgery, Faculty of Medicine, University of Toyama, 2630 Sugitani, Toyama, 930-0194, Japan
| | - Miho Kondo
- Department of Orthopaedic Surgery, Faculty of Medicine, University of Toyama, 2630 Sugitani, Toyama, 930-0194, Japan
| | - Hiroto Makino
- Department of Orthopaedic Surgery, Faculty of Medicine, University of Toyama, 2630 Sugitani, Toyama, 930-0194, Japan
| | - Katsuhiko Kamei
- Department of Orthopaedic Surgery, Faculty of Medicine, University of Toyama, 2630 Sugitani, Toyama, 930-0194, Japan
| | - Masahiko Kanamori
- Department of Human Science 1, University of Toyama, 2630 Sugitani, Toyama, 930-0194, Japan
| | - Tomoatsu Kimura
- Department of Orthopaedic Surgery, Faculty of Medicine, University of Toyama, 2630 Sugitani, Toyama, 930-0194, Japan
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Adel H, Khan SA, Adil SO, Huda F, Khanzada U, Manohar M, Masood K. CT-Based Evaluation of Diffuse Idiopathic Skeletal Hyperostosis in Adult Population; Prevalence, Associations and Interobserver Agreement. J Clin Densitom 2020; 23:44-52. [PMID: 30583921 DOI: 10.1016/j.jocd.2018.12.001] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/19/2018] [Revised: 11/30/2018] [Accepted: 12/04/2018] [Indexed: 11/22/2022]
Abstract
Diffuse idiopathic skeletal hyperostosis (DISH), being an asymptomatic condition, is generally discovered incidentally on imaging and it has not received much attention for research on clinical grounds. We assessed the prevalence of DISH, its associated factors, and interobserver agreement for computed tomography (CT)-based diagnosis of DISH. CT scans of chest, abdomen, and pelvis performed for various clinical indications were retrospectively reviewed. Resnick criteria were used for the diagnosis of DISH. Moreover, enthesopathy along with comorbidities was assessed. CT scans were observed by 3 observers having different experience levels. Out of total 416 patients, the prevalence of DISH was 30.8%. Strong positive agreement was observed between observer 1 and 2 (k = 0.89), observer 1 and 3 (k = 0.91), and observer 2 and 3 (k = 0.94). Reporting rate of DISH was 59.3%. Regression analyses showed that enthesopathy was 2.45 times (adjusted odds ratio [AOR]: 2.45, 95% confidence intervals [CI]: 1.48-4.05), diabetic patients were 4.74 times (AOR: 4.74, 95% CI: 2.89-7.78) while hypertensive patients were 2.17 times (AOR: 2.17, 95% CI: 1.30-3.62) more likely to have DISH in comparison to those who do not have DISH. A high prevalence of DISH was observed in our cohort. Enthesopathy and comorbidities like diabetes and hypertension were significant factors associated with DISH. Moreover, excellent agreement was observed in defining DISH on CT according to Resnick criteria.
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Affiliation(s)
- Hatem Adel
- Dow Institute of Radiology, Dow University of Health Sciences, Karachi, Pakistan
| | - Sohail Ahmed Khan
- Dow Institute of Radiology, Dow University of Health Sciences, Karachi, Pakistan
| | - Syed Omair Adil
- Department of Research, Dow University of Health Sciences, Karachi, Pakistan.
| | - Farheen Huda
- Dow Institute of Radiology, Dow University of Health Sciences, Karachi, Pakistan
| | - Usman Khanzada
- Dow Institute of Radiology, Dow University of Health Sciences, Karachi, Pakistan
| | - Murli Manohar
- Dow Institute of Radiology, Dow University of Health Sciences, Karachi, Pakistan
| | - Kamran Masood
- Dow Institute of Radiology, Dow University of Health Sciences, Karachi, Pakistan
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21
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Chitten JJ, James B. Diffuse idiopathic skeletal hyperostosis in a 33-year-old woman with PCOS and metabolic syndrome: a rare scenario. BMJ Case Rep 2019; 12:12/10/e223740. [PMID: 31676500 DOI: 10.1136/bcr-2017-223740] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022] Open
Abstract
Diffuse idiopathic skeletal hyperostosis (DISH) is a common degenerative enthesopathy seen in the elderly with male preponderance. It is uncommon in patients before 50 years of age and is extremely rare in patients younger than 40 years. We report a case of 33-year-old unmarried woman who presented with inflammatory spinal pain and stiffness, limited chest expansion, decreased range of spinal motion and postural abnormalities, all of which suggested the diagnosis of ankylosing spondylitis, considering the patient's age. But, further evaluation led us to the final diagnosis of DISH with associated metabolic syndrome and polycystic ovarian syndrome (PCOS). To the best of our knowledge, our patient is the first reported case of DISH in a woman less than 40 years of age, and also the first case of DISH associated with PCOS and metabolic syndrome.
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Affiliation(s)
- Jojin Jose Chitten
- Orthopaedics, Sree Lakshmi Narayana Institute of Medical Sciences and Hospital, Puducherry, India
| | - Boblee James
- Orthopaedics, Sree Lakshmi Narayana Institute of Medical Sciences and Hospital, Puducherry, India
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22
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Abstract
The classification of axial spondyloarthritis (axSpA) comprises the classical ankylosing spondylitis (AS), which is characterized by already existing structural changes in the sacroiliac joints, and the so-called non-radiographic axSpA (nr-axSpA), in which by definition such changes are not present. This distinction is based on the ASAS classification criteria for axSpA, which are however not suitable for a diagnosis. According to the current classification, spondyloarthritis (SpA) includes axSpA, which can be associated with psoriasis and/or chronic inflammatory bowel diseases (CED), such as Crohn's disease and ulcerative colitis, and peripheral SpA, which is further divided into SpA associated with psoriasis, partially synonymous with psoriatic arthritis (PsA), reactive SpA, partially synonymous with reactive arthritis (ReA) and SpA associated with CED, partially synonymous with arthritis associated with CED (e.g. Crohn's disease, ulcerative colitis) and peripheral undifferentiated SpA, which by definition is not associated with any of the above. In this article only the most important differential diagnoses are discussed, i. e. diffuse idiopathic skeletal hyperostosis (DISH), fractures and infections in the axial skeleton. In addition, the frequency of certain musculoskeletal findings in the normal population examined by magnetic resonance imaging (MRI) are also discussed.
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23
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Laloo F, Herregods N, Jaremko JL, Carron P, Elewaut D, Van den Bosch F, Verstraete K, Jans L. MRI of the axial skeleton in spondyloarthritis: the many faces of new bone formation. Insights Imaging 2019; 10:67. [PMID: 31338670 PMCID: PMC6650523 DOI: 10.1186/s13244-019-0752-4] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2019] [Accepted: 05/14/2019] [Indexed: 12/17/2022] Open
Abstract
Spondyloarthritis has two hallmark features: active inflammation and structural lesions with new bone formation. MRI is well suited to assess active inflammation, but there is increasing interest in the role of structural lesions at MRI. Recent MRI studies have examined the established features of new bone formation and demonstrated some novel features which show diagnostic value and might even have potential as possible markers of disease progression. Although MRI is not the first imaging modality that comes into mind for assessment of bony changes, these features of new bone formation can be detected on MRI—if one knows how to recognize them. This review illustrates the MRI features of new bone formation and addresses possible pitfalls.
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Affiliation(s)
- Frederiek Laloo
- Department of Radiology and Medical Imaging, Ghent University Hospital, Corneel Heymanslaan 10, 9000, Ghent, Belgium.
| | - Nele Herregods
- Department of Radiology and Medical Imaging, Ghent University Hospital, Corneel Heymanslaan 10, 9000, Ghent, Belgium
| | - Jacob L Jaremko
- Department of Radiology & Diagnostic Imaging, University of Alberta Hospital, 8440-112 Street, Edmonton, Alberta, T6G 2B7, Canada
| | - Philippe Carron
- Department of Rheumatology, Ghent University Hospital, Corneel Heymanslaan 10, 9000, Ghent, Belgium.,VIB Inflammation Research Center, Unit for Molecular Immunology and Inflammation, Ghent University, Technologiepark 927, 9052, Ghent, Belgium
| | - Dirk Elewaut
- Department of Rheumatology, Ghent University Hospital, Corneel Heymanslaan 10, 9000, Ghent, Belgium.,VIB Inflammation Research Center, Unit for Molecular Immunology and Inflammation, Ghent University, Technologiepark 927, 9052, Ghent, Belgium
| | - Filip Van den Bosch
- Department of Rheumatology, Ghent University Hospital, Corneel Heymanslaan 10, 9000, Ghent, Belgium.,VIB Inflammation Research Center, Unit for Molecular Immunology and Inflammation, Ghent University, Technologiepark 927, 9052, Ghent, Belgium
| | - Koenraad Verstraete
- Department of Radiology and Medical Imaging, Ghent University Hospital, Corneel Heymanslaan 10, 9000, Ghent, Belgium
| | - Lennart Jans
- Department of Radiology and Medical Imaging, Ghent University Hospital, Corneel Heymanslaan 10, 9000, Ghent, Belgium
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24
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Tsoi C, Griffith JF, Lee RKL, Wong PCH, Tam LS. Imaging of sacroiliitis: Current status, limitations and pitfalls. Quant Imaging Med Surg 2019; 9:318-335. [PMID: 30976556 DOI: 10.21037/qims.2018.11.10] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
The clinical need to diagnose sacroiliitis at an earlier stage has led to the sacroiliac joints being more frequently imaged, particularly with magnetic resonance imaging (MRI). This review outlines the imaging approach to sacroiliitis, emphasizing the imaging protocols, diagnostic criteria, limitations and potential mimics of MRI examination. The value of imaging-guided intervention in sacroiliac joint disease is also briefly outlined.
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Affiliation(s)
- Carita Tsoi
- Department of Imaging & Interventional Radiology, Prince of Wales Hospital, The Chinese University of Hong Kong, Shatin, Hong Kong, China
| | - James Francis Griffith
- Department of Imaging & Interventional Radiology, Prince of Wales Hospital, The Chinese University of Hong Kong, Shatin, Hong Kong, China
| | - Ryan Ka Lok Lee
- Department of Imaging & Interventional Radiology, Prince of Wales Hospital, The Chinese University of Hong Kong, Shatin, Hong Kong, China
| | - Priscilla Ching Han Wong
- Department of Medicine and Therapeutics, Prince of Wales Hospital, The Chinese University of Hong Kong, Shatin, Hong Kong, China
| | - Lai Shan Tam
- Department of Medicine and Therapeutics, Prince of Wales Hospital, The Chinese University of Hong Kong, Shatin, Hong Kong, China
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25
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Kuperus JS, Waalwijk JF, Regan EA, van der Horst-Bruinsma IE, Oner FC, de Jong PA, Verlaan JJ. Simultaneous occurrence of ankylosing spondylitis and diffuse idiopathic skeletal hyperostosis: a systematic review. Rheumatology (Oxford) 2018; 57:2120-2128. [DOI: 10.1093/rheumatology/key211] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/30/2023] Open
Affiliation(s)
- Jonneke S Kuperus
- Department of Orthopaedics, University Medical Center Utrecht, Utrecht, The Netherlands
| | - Job F Waalwijk
- Department of Orthopaedics, University Medical Center Utrecht, Utrecht, The Netherlands
| | | | | | - F Cumhur Oner
- Department of Orthopaedics, University Medical Center Utrecht, Utrecht, The Netherlands
| | - Pim A de Jong
- Department of Radiology, University Medical Center Utrecht, Utrecht, The Netherlands
| | - Jorrit-Jan Verlaan
- Department of Orthopaedics, University Medical Center Utrecht, Utrecht, The Netherlands
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26
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Mader R, Verlaan JJ, Eshed I, Bruges-Armas J, Puttini PS, Atzeni F, Buskila D, Reinshtein E, Novofastovski I, Fawaz A, Kurt DV, Baraliakos X. Diffuse idiopathic skeletal hyperostosis (DISH): where we are now and where to go next. RMD Open 2017; 3:e000472. [PMID: 28955488 PMCID: PMC5604607 DOI: 10.1136/rmdopen-2017-000472] [Citation(s) in RCA: 68] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2017] [Revised: 05/02/2017] [Accepted: 05/05/2017] [Indexed: 01/26/2023] Open
Abstract
Diffuse idiopathic skeletal hyperostosis (DISH) is a well-recognised entity characterised by calcifications and ossifications of the entheses affecting mainly the spine and peripheral sites. DISH is still insufficiently investigated and understood. The objective of this report is to highlight the present limitations of our understanding of the condition and suggest future research paths.
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Affiliation(s)
- Reuven Mader
- Rheumatic Diseases Unit, Ha'Emek Medical Center, Afula, Israel.,Rappaport Faculty of Medicine, Technion Institute of Technology, Haifa, Israel
| | - Jorrit-Jan Verlaan
- Department of Orthopedics, University Medical Center Utrecht, Utrecht, The Netherlands
| | - Iris Eshed
- Department of Radiology, Musculoskeletal Imaging Unit, Sheba Medical Center, Tel Aviv University, Tel Aviv, Israel
| | - Jacome Bruges-Armas
- Medicine, Rheumatology, SEEBMO, Hospital de Santo Espirito da ilha Terceira, Universidade do Porto, Angra do Heroísmo, Portugal.,CEDOC, Nova Medical School, University of Lisbon, Lisbon, Portugal
| | | | - Fabiola Atzeni
- Rheumatology Unit, L. Sacco University Hospital of Milan, Milan, Italy
| | - Dan Buskila
- Department of Medicine, H. Soroka Medical Center, Ben Gurion University of the Negev, Beer Sheva, Israel
| | - Eyal Reinshtein
- Department of Genetics, Meir Medical Center, Kfar Saba, Israel
| | | | - Abdallah Fawaz
- Rheumatic Diseases Unit, Ha'Emek Medical Center, Afula, Israel
| | - de Vlam Kurt
- Division of Rheumatology, University Hospitals Leuven, Leuven, Belgium
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27
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Arad U, Elkayam O, Eshed I. Magnetic resonance imaging in diffuse idiopathic skeletal hyperostosis: similarities to axial spondyloarthritis. Clin Rheumatol 2017; 36:1545-1549. [PMID: 28364275 DOI: 10.1007/s10067-017-3617-6] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2017] [Revised: 03/19/2017] [Accepted: 03/27/2017] [Indexed: 11/28/2022]
Abstract
Diffuse idiopathic skeletal hyperostosis (DISH) is a non-inflammatory condition that involves calcification and ossification of the spinal ligaments and entheses. While, characteristic magnetic resonance imaging (MRI) lesions of the spine in patients with axial spondyloarthritis, another enthesitis-related disease, have been described and defined, there is a paucity of information regarding the MRI findings in DISH. The aim of this study was to describe the MRI findings of patients with DISH. We collected computed tomography studies with findings characteristic of DISH and that also had corresponding and concurrent MRI studies of the spine. For each patient, sagittal T1-weighted and STIR MRI sequences were evaluated for anterior/posterior vertebral corners of bone marrow edema (BME) and fat deposition. In total, we assessed 156 vertebral units in 10 patients that had both radiographic evidence of DISH and available MRI studies of the spine. Lesions consistent with BME corners were detected in five patients, and in three of them, three separate sites were involved, a finding that is suggestive of axial spondyloarthritis (SpA) according to the ASAS/OMERACT consensus statement. Fat deposition corners were detected in eight patients and in seven of them, several sites were involved. Spinal MRI lesions that are characteristic of axial SpA were commonly observed in a cohort of patients with DISH. This bears relevance to cases with diagnostic uncertainty and may imply overlapping pathogenetic mechanisms for new bone formation in both SpA and DISH. Further study is indicated to better characterize the similarities and differences between the MRI lesions of DISH and SpA.
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Affiliation(s)
- Uri Arad
- Department of Rheumatology, Tel Aviv Medical Center, 6 Weizman St, 64239, Tel Aviv, Israel. .,Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel.
| | - Ori Elkayam
- Department of Rheumatology, Tel Aviv Medical Center, 6 Weizman St, 64239, Tel Aviv, Israel.,Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - Iris Eshed
- Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel.,Department of Diagnostic Imaging, Sheba Medical Center, Tel Hashomer, Ramat Gan, Israel
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