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Title: Do we need to do overcorrection in Blount's disease?
Authors: Perajit Eamsobhana
Kamolporn Kaewpornsawan
Kittipong Yusuwan
Mahidol University
Keywords: Medicine
Issue Date: 1-Jan-2014
Citation: International Orthopaedics. Vol.38, No.8 (2014), 1661-1664
Abstract: Purpose: In order to prevent recurrent deformity, overcorrection in Blount's disease has been a common practice by most paediatric orthopaedic surgeons. However, some patients have persistent valgus alignment resulting in awkward deformity. The femoro-tibial angle (FTA) was measured in this series of cases to determine the necessity of such practice. Method: During 1998-2010, patients with Blount's disease stage 2 by Langenskiold, aged from 30 to 40 months who had failed from bracing and underwent valgus osteotomy were included. Seventeen legs had postoperative FTA 7-13° (group 1) and 48 legs had postoperative FTA more than 13° (group 2). ROC curve was used to determine the appropriate FTA that was suitable to prevent recurrence. Results: Four legs had recurrence (28.6 %) in group 1 and six legs (12.5 %) had recurrence in group 2. Chi-square test between two groups were not statistically significant in recurrence (p = 0.434). Age and BMI were not statistically significant between recurrent and non-recurrent groups. The ROC curve shows that overcorrection more than 15° did not show benefit to prevent the recurrence in Blount's stage 2. Conclusion: Our study showed that the overcorrection group had non-statistically significant recurrence compared to the non-overcorrection group, and overcorrection more than valgus 15° has no benefit to prevent recurrence. © 2014 Springer-Verlag.
ISSN: 14325195
Appears in Collections:Scopus 2011-2015

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