Legg-Calve´-Perthes disease - diagnostic value of acetabular-femoral head match index.

Journal and index pages often block iframe embedding. This reader keeps the evidence details in Orthonotes and leaves the source page one click away.

Abstract

[Indexed for MEDLINE] Conflict of interest statement: Declarations Competing interests The authors declare no competing interests. Ethics approval All procedures performed in studies involving human participants were in accordance with the ethical standards of the institutional and/or national research committee and with the 1964 Helsinki declaration and its later amendments or comparable ethical standards. This study was approved by the institutional review board of the First Affiliated Hospital of Guangzhou University of Chinese Medicine. The ethics approval number is K-2024-182. Informed consent Approval from the ethics committee of Guangzhou University of Chinese Medicine was obtained and in keeping with the policies for a retrospective review, informed consent was waived by the above mentioned Ethics committee. 17. J Pediatr Orthop. 2026 Jan 1;46(1):25-33. doi: 10.1097/BPO.0000000000003071. Epub 2025 Sep 19. Growth Modulation to Improve Femoral Head Sphericity in Legg-Calvé-Perthes Disease. Abril JC(1)(2), Fraga M(2), Montero M(1), García-Fernández J(2). Author information: (1)Departments of Pediatric Orthopaedic Surgery, Ruber International Hospital. (2)Department of Pediatric Orthopaedic Surgery, Niño Jesús Hospital, Madrid, Spain. INTRODUCTION: Legg-Calvé-Perthes disease (LCPD) often causes residual deformities, typically manifesting as an ellipsoidal femoral head shape. This condition arises from initial bone collapse and necrosis, inhibiting growth at the anterosuperior femoral head and resulting in asymmetric growth. The aim of this study is to assess the effectiveness of selective hemiepiphysiodesis in improving femoral head sphericity in patients with LCPD with previous onset of ovalization. METHODS: We compared 71 hips undergoing prophylactic selective hemiepiphysiodesis (surgical group) against 86 hips managed nonsurgically (control group). Radiographic evaluations were performed at 3 time points (3 y after disease onset, 5 y after disease onset, and skeletal maturity) to assess disease progression and intervention effects, measuring the ellipsoidal index (EI), the Reimer migration index (RMI), and the articulotrochanteric distance (ATD), with classifications according to the Herring scale and final sphericity assessments. RESULTS: Both cohorts were initially comparable in terms of age at onset, sex, and degree of deformity, showing similar EI, Herring classifications, and RMI ( P >0.05). At T2, significant improvements were observed in the EI, RMI, and ATD in the surgical group compared with the control group. At skeletal maturity, the surgical group demonstrated significantly improved sphericity across all 3 indices ( P