The Chiari pelvic osteotomy for patients with dysplastic hips and poor joint congruency : LONG-TERM FOLLOW-UP
著者
伊藤, 浩
(Ito, Hiroshi)
Tanino, H.
Yamanaka, Y.
Nakamura, T.
Minami, A.
Matsuno, T.
上位タイトル
Journal of Bone and Joint Surgery - Series B
Vol.93-B,
No.6
(2011.
6)
,p.726-
731
識別番号
ISSN
0301-620X
DOI
10.1302/0301-620X.93B6.26178
抄録
We report the mid- to long-term (mean 20.3 years, 10 to 32.5) results of the Chiari pelvic osteotomy in patients with pre- to advanced stage osteoarthritis in dysplastic hips. We followed 163 Japanese patients (173 hips) with a mean age at surgery of 20 years (9 to 54). Overall, 124 hips (72%) had satisfactory results, with Harris hip scores ≥ 80. Satisfactory results were seen in 105 of 134 hips with pre- or early osteoarthritis (78%) and 19 of 39 hips with advanced osteoarthritis (49%). A total of 15 hips (9%) underwent a total hip replacement (THR) with a mean interval between osteotomy and THR of 16.4 years. With conversion to THR as the endpoint, the 30-year survival rate was 85.9% (95% confidence interval 82.3 to 89.5). It was 91.8% for patients with pre- or early osteoarthritis and 43.6% for those with advanced osteoarthritis (p < 0.001). We now perform the Chiari osteotomy for patients with dysplastic hips showing poor joint congruency and who prefer a joint-conserving procedure to THR.
