Hip international : the journal of clinical and experimental research on hip pathology and therapy · 2026
The gluteus medius is affected by changes in joint mechanics due to osteoarthritis with acetabular dysplasia and corresponding total hip arthroplasty.
СтатьяНазвание и аннотация: Перевод в очереди
Обработка статьи · этапы, ошибки и управление
Загрузка состояния…
Ошибки и ограничения
История · было → стало
Состояние обновляется каждые 5 секунд, пока блок открыт. Процент показывается только там, где известен объём работы. Пауза останавливает продолжение этапа; текущий запрос к источнику может завершиться.
Takaoka Yusuke, Kawai Toshiyuki, Okuzu Yaichiro, Kobayashi Tomohito, Tomizawa Takuya, Seki Kenji, Matsuda Shuichi
Аннотация
PURPOSE: To examine the effects of superior lateralisation of the centre of rotation and femoral offset shortening on the gluteus medius in developmental dysplasia of the hip (DDH), and the impact of biomechanical restoration by total hip arthroplasty (THA).
METHODS: Horizontal (femoral, acetabular, and combined offset) and vertical (centre height, leg length) radiographic parameters, as well as gluteus medius radiodensity measured by computed tomography, were evaluated preoperatively and 1 year postoperatively in 100 hips (87 patients). Patients were grouped by whether radiodensity improved postoperatively. Correlations between parameter changes and radiodensity were analysed.
RESULTS: In advanced osteoarthritis, radiodensity deterioration correlated with femoral offset shortening (p = 0.0011) and increased centre height (p < 0.0001). Postoperative radiodensity improvement correlated with increased combined offset (p = 0.0380) and leg lengthening (p = 0.0002). Multivariate analysis showed that the non-improvement group had a significantly smaller combined offset (p = 0.0399).
CONCLUSIONS: Gluteus medius fatty infiltration improved mainly with leg lengthening, but insufficient combined offset limited this recovery.
METHODS: Horizontal (femoral, acetabular, and combined offset) and vertical (centre height, leg length) radiographic parameters, as well as gluteus medius radiodensity measured by computed tomography, were evaluated preoperatively and 1 year postoperatively in 100 hips (87 patients). Patients were grouped by whether radiodensity improved postoperatively. Correlations between parameter changes and radiodensity were analysed.
RESULTS: In advanced osteoarthritis, radiodensity deterioration correlated with femoral offset shortening (p = 0.0011) and increased centre height (p < 0.0001). Postoperative radiodensity improvement correlated with increased combined offset (p = 0.0380) and leg lengthening (p = 0.0002). Multivariate analysis showed that the non-improvement group had a significantly smaller combined offset (p = 0.0399).
CONCLUSIONS: Gluteus medius fatty infiltration improved mainly with leg lengthening, but insufficient combined offset limited this recovery.