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KMID : 1207720230150010101
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Clinics in Orthopedic Surgery
2023 Volume.15 No. 1 p.101 ~ p.108
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Re-stooping after Corrective Osteotomy in Patients with Ankylosing Spondylitis
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Park Jin-Sung
Kang Byeong-Jik
Kim Tae-Hwan
Ahn Hyung-Seob
Park Ye-Soo
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Abstract
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Background: Corrective osteotomy is an effective surgery for correcting posture in patients with ankylosing spondylitis (AS). Despite satisfactory correction, some patients experience re-stooping during follow-up. However, there have been no studies on restooping in AS. We aimed to analyze the factors that affect re-stooping.
Methods: Fifty patients (50 cases) who underwent thoracolumbar corrective osteotomy for AS from March 2006 to April 2018 were analyzed. We defined re-stooping as global kyphosis that recurs after corrective osteotomy. The patients were divided into two groups based on the ratio of correction loss: non-re-stooping group (N group) and re-stooping group (R group). We analyzed the demographic data and radiological parameters, such as modified Stoke Ankylosing Spondylitis Spine Score (mSASSS), sagittal vertical axis, and various angles. We also investigated the factors affecting re-stooping by analyzing the correlation between the ratio of correction loss and various factors.
Results: A significant difference was seen in the change in the mSASSS from before surgery to the last follow-up between the N group (2.87 ± 3.08) and the R group (9.20 ± 5.44). In multivariate analysis, only the change in the mSASSS from before surgery to the last follow-up was significantly correlated with the ratio of correction loss.
Conclusions: Thoracolumbar corrective osteotomy seems to provide high satisfaction among patients with AS but can lead to re-stooping during follow-up. The change in mSASSS was related with re-stooping in the current study. We recommend active rehabilitative exercises and appropriate medication depending on the patient’s condition, which may help delay the postoperative progression of AS.
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KEYWORD
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Ankylosing spondylitis, Thoracolumbar, Osteotomy, Modified Stoke Ankylosing Spondylitis Spine Score, Re-stooping
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