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Original Article
- Reverse V step-cut osteotomy for the correction of cubitus varus in adults: a retrospective study
- Jinyoung Bang, Hyung Jun Koo
- J Musculoskelet Trauma 2025;38(2):102-108. Published online April 25, 2025
- DOI: https://doi.org/10.12671/jmt.2025.00045
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Abstract
PDF - Background
Cubitus varus deformity in adults most commonly occurs as a late complication resulting from malunion of distal humeral fractures sustained during childhood. This deformity can cause cosmetic problems and anatomical deformities that hinder normal sports activities and potentially lead to long-term complications. Although various surgical techniques exist for correcting cubitus varus, this study investigated the clinical and functional outcomes of reverse V step-cut osteotomy.
Methods
In total, 15 patients underwent surgical treatment with reverse V step-cut osteotomy between 2012 and 2023. The mean age of the patients at the time of surgery was 46.3 years (range, 20–65 years). The preoperative carrying angle was ‒11.09° of varus, which was corrected to +12.81° of valgus postoperatively. The mean preoperative lateral prominence index (LPI) was ‒10.03, and the mean postoperative LPI improved to ‒4.48. A comparison to the unaffected side showed a P-value of 0.978, indicating similarity.
Results
Preoperatively, eight patients exhibited signs of posterolateral rotatory instability, and among them, three underwent concomitant lateral ulnar collateral ligament reconstruction. Seven patients reported ulnar nerve symptoms, and all underwent concurrent ulnar nerve release. Postoperatively, improvements in elbow pain, instability, and ulnar nerve symptoms were observed. One patient required reoperation due to malunion and insufficient correction, but no other complications were noted.
Conclusions
These outcomes demonstrate that reverse V step-cut osteotomy can be an effective treatment method for cubitus varus deformity in adults. Level of evidence: IV.
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