OBJECTIVE: Juvenile- and adult-onset ankylosing spondylitis (AS) are subtypes of AS that may have different clinical outcomes. We compared cohorts of juvenile-onset AS and adult-onset AS in terms of clinical characteristics, clinical outcomes, proceeding to AS-related orthopedic surgery, and type of orthopedic surgery. METHODS: A retrospective cohort study was conducted of all AS patients attending a teaching hospital. Demographics, clinical parameters, and history of AS-related orthopedic surgery to the spine, root, or peripheral joints were recorded. Differences between surgery for juvenile- and adult-onset AS patients, and effects of covariates were assessed using logistic regression and survival analyses. RESULTS: A total of 553 AS patients were studied: 162 juvenile-onset AS and 391 adult-onset AS cases. After adjusting for significant covariates, adult-onset AS cases were less likely to proceed to surgery (odds ratio [OR] 0.31, P < 0.001), have a hip procedure (resurfacing or arthroplasty; OR 0.374, P = 0.001), and have hip arthroplasty (OR 0.43, P = 0.01). Significant differences were also observed when comparing Kaplan-Meier survival curves (P = 0.001) and using Cox proportional hazards regression (P = 0.002). A history of smoking was not associated with surgery. AS cases with older age at symptom onset were far less likely to have surgery than those with younger onset, in a nonlinear manner. CONCLUSION: Juvenile-onset AS cases are more likely than adult-onset AS cases to proceed to hip arthroplasty, but equally likely to have hip resurfacing and hip arthroplasty revision/re-revisions. Smoking was not associated with the risk of orthopedic surgery. Orthopedic surgery was unlikely after 40 years of disease in both subsets.
OBJECTIVE: Juvenile- and adult-onset ankylosing spondylitis (AS) are subtypes of AS that may have different clinical outcomes. We compared cohorts of juvenile-onset AS and adult-onset AS in terms of clinical characteristics, clinical outcomes, proceeding to AS-related orthopedic surgery, and type of orthopedic surgery. METHODS: A retrospective cohort study was conducted of all AS patients attending a teaching hospital. Demographics, clinical parameters, and history of AS-related orthopedic surgery to the spine, root, or peripheral joints were recorded. Differences between surgery for juvenile- and adult-onset AS patients, and effects of covariates were assessed using logistic regression and survival analyses. RESULTS: A total of 553 AS patients were studied: 162 juvenile-onset AS and 391 adult-onset AS cases. After adjusting for significant covariates, adult-onset AS cases were less likely to proceed to surgery (odds ratio [OR] 0.31, P < 0.001), have a hip procedure (resurfacing or arthroplasty; OR 0.374, P = 0.001), and have hip arthroplasty (OR 0.43, P = 0.01). Significant differences were also observed when comparing Kaplan-Meier survival curves (P = 0.001) and using Cox proportional hazards regression (P = 0.002). A history of smoking was not associated with surgery. AS cases with older age at symptom onset were far less likely to have surgery than those with younger onset, in a nonlinear manner. CONCLUSION: Juvenile-onset AS cases are more likely than adult-onset AS cases to proceed to hip arthroplasty, but equally likely to have hip resurfacing and hip arthroplasty revision/re-revisions. Smoking was not associated with the risk of orthopedic surgery. Orthopedic surgery was unlikely after 40 years of disease in both subsets.
Authors: Pamela F Weiss; Walter P Maksymowych; Robert G Lambert; Jacob L Jaremko; David M Biko; Joel Paschke; Timothy G Brandon; Rui Xiao; Nancy A Chauvin Journal: Arthritis Res Ther Date: 2018-03-22 Impact factor: 5.156
Authors: Timothy G Brandon; Rui Xiao; Rosemary G Peterson; Nancy A Chauvin; Michael L Francavilla; David M Biko; Dax G Rumsey; Matthew L Stoll; Pamela F Weiss Journal: Pediatr Rheumatol Online J Date: 2021-12-02 Impact factor: 3.054
Authors: Sierra N Murphy; Brandon A Nguyen; Rohin Singh; Nolan J Brown; Shane Shahrestani; Matthew T Neal; Naresh P Patel; Maziyar A Kalani Journal: Surg Neurol Int Date: 2022-07-15