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The Bone & Joint Journal
Vol. 103-B, Issue 9 | Pages 1551 - 1551
1 Sep 2021
Osawa Y Seki T Okura T Takegami Y Ishiguro N Hasegawa Y


The Bone & Joint Journal
Vol. 103-B, Issue 4 | Pages 665 - 671
1 Apr 2021
Osawa Y Seki T Okura T Takegami Y Ishiguro N Hasegawa Y

Aims

We compared the clinical outcomes of curved intertrochanteric varus osteotomy (CVO) with bone impaction grafting (BIG) with CVO alone for the treatment of osteonecrosis of the femoral head (ONFH).

Methods

This retrospective comparative study included 81 patients with ONFH; 37 patients (40 hips) underwent CVO with BIG (BIG group) and 44 patients (47 hips) underwent CVO alone (CVO group). Patients in the BIG group were followed-up for a mean of 12.2 years (10.0 to 16.5). Patients in the CVO group were followed-up for a mean of 14.5 years (10.0 to 21.0). Assessment parameters included the Harris Hip Score (HHS), Oxford Hip Score (OHS), Japanese Orthopaedic Association Hip-Disease Evaluation Questionnaire (JHEQ), complication rates, and survival rates, with conversion to total hip arthroplasty (THA) and radiological failure as the endpoints.


The Bone & Joint Journal
Vol. 99-B, Issue 2 | Pages 175 - 183
1 Feb 2017
Morita D Hasegawa Y Okura T Osawa Y Ishiguro N

Aims

Transtrochanteric rotational osteotomy (TRO) is performed for young patients with non-traumatic osteonecrosis of the femoral head (ONFH) to preserve the hip. We aimed to investigate the long-term outcomes and the risk factors for failure 15 years after this procedure.

Patients and Methods

This study included 95 patients (111 hips) with a mean age of 40 years (21 to 64) who underwent TRO for ONFH. The mean follow-up was 18.2 years (3 to 26). Kaplan–Meier survivorship analyses were performed with conversion to total hip arthroplasty (THA) and radiological failure due to secondary collapse of the femoral head or osteoarthritic changes as the endpoint. Multivariate analyses were performed to assess risk factors for each outcome.