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Orthopaedic Proceedings
Vol. 85-B, Issue SUPP_III | Pages 271 - 271
1 Mar 2003
Choi Ho I Yoo WJ Chung CY Cho T
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We evaluated growth and remodeling of the 21 hips after valgus osteotomy with rotational and sagittal components for hinge abduction in 21 patients (mean, 9.7 years) with Legg-Calvé-Perthes disease (LCPD) both clinically and radiologically. The type of osteotomy was determined by assessing the hinge movement three-dimensionally using preoperative gait assessment, 2-dimensional/3-dimensional computed tomography (2D/3D-CT), and intraoperative dynamic arthrography. The Iowa hip score averaged 66 (34 to 76) before operation and 92 (80 to 100) at a mean follow-up of 7.1 years (3.0 to 15.0). Radiographic measurements revealed favorable remodeling of the femoral head and improved hip joint mechanics. Valgus osteotomy with rotational and sagittal components results in sustained improvement in symptoms and functions and beneficially influences remodeling of the hip.

Preoperative gait assessment, 2D/3D-CT, and intra-operative dynamic arthrography are helpful for assessing the spatial features of the femoral capital hump and for determining the optimal congruent position of the hip.