Outcome of secondary intertrochanteric osteotomy for residual deformity after slipped capital femoral epiphysis.

Authors

Yohei Tomaru, Makoto Kamegaya, Takashi Saisu, Akitoshi Sakuma, Yasuhiro Oikawa, Jun Kakizaki, Yuko Segawa, Yuta Tsukagoshi, Hiroshi Kamada, Yasuhiro Homma

Published in

Journal of orthopaedic surgery (Hong Kong). Volume 34. Issue 3. Pages 10225536261488958. Epub Sep 09, 2026.

Abstract

BackgroundAlthough in situ pinning (ISP) is the standard primary treatment for slipped capital femoral epiphysis (SCFE), some patients are left with residual deformity that may lead to long-term complications, including an increased risk of osteoarthritis. This study evaluates the radiographic and clinical outcomes of a secondary corrective procedure, the Pre-Operative computed Tomography-assisted intertrochanteric Flexion (POTOF) osteotomy, for treating these persistent deformities.MethodsWe retrospectively reviewed patients who underwent a POTOF osteotomy as a secondary procedure for SCFE between 2004 and 2020. Patients with less than two years of follow-up were excluded. We evaluated changes in the modified β angle, incidence of avascular necrosis (AVN), relative joint space (RJS), and the modified Harris Hip Score at the final follow-up. Statistical significance was set at p < 0.05.ResultsEleven patients (nine male, two female; 11 hips) were included, with a mean follow-up of 9.0 years. Seven patients had undergone prior ISP, and four were neglected cases. The mean modified β angle significantly improved from 120° to 91° (p < 0.01). No AVN was observed. The mean RJS was 92% (range, 42-128%). The mean modified Harris Hip Score, available for 7 of the 11 hips, was 92.4, indicating good hip function.ConclusionsThe POTOF osteotomy may serve as a viable secondary procedure for treating residual deformities after SCFE. In this small cohort it improved hip alignment and function, supporting its potential as a treatment option for patients with post-SCFE deformities or neglected cases, although further comparative studies are required to confirm its definitive efficacy.

PMID:
42715548
Bibliographic data and abstract were imported from PubMed on 10 Sep 2026.

Read full publication at:
Please sign in to see all details.

Stats

1-terrible, 9-excellent. How would you rate this publication? Sign in in to submit your rating.

Post a comment

You need to be signed in to post comments. You can sign in here.

Comments

There are no comments yet.