Changes in Alignment of Ipsilateral Knee on Computed Tomography after Total Hip Arthroplasty for Developmental Dysplasia of the Hip

Autor: De‐gang Yu, Jing‐wei Zhang, Chen Xu, Jia‐wei Xu, Hui‐wu Li, Zhen‐an Zhu, Feng‐xiang Liu, Yuan‐qing Mao
Jazyk: angličtina
Rok vydání: 2019
Předmět:
Zdroj: Orthopaedic Surgery, Vol 11, Iss 3, Pp 397-404 (2019)
Druh dokumentu: article
ISSN: 1757-7861
1757-7853
DOI: 10.1111/os.12462
Popis: Objective To assess the changes in alignment of ipsilateral knee joint after total hip arthroplasty (THA) for patients with developmental dysplasia of the hip (DDH). Methods Thirty‐four patients with DDH (38 hips) who underwent THA between February and December 2008 were included in the study: 4 men and 30 women with a mean age of 56.2 years. According to Crowe classification, 11 patients were grade I, 12 were grade II, 9 were grade III, and 6 were grade IV. Computed tomography scans were performed from the anterior superior iliac spine to the tibial tubercle before surgery and at last follow‐up. Femoral anteversion angle, leg lengthening, and knee alignment, including patellar tilt angle, lateral patellar displacement, and tibiofemoral rotation angle, were measured on computed tomography scans, and their relationships were analyzed. Results The mean follow‐up period was 51.5 months (range, 39–70 months). There were no intraoperative fractures, and no infections occurred during the follow‐up period. One patient developed deep venous thrombosis and another suffered from femoral nerve palsy. The mean preoperative Harris Hip Score was 48.9 ± 7.5 and improved to 91.2 ± 8.3 by the last follow‐up (P
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