中嶋, 隆行

萩原, 茂生

宮坂, 健

輪湖, 靖

三浦, 道明

瓦井, 裕也

縄田, 健斗

NAKAJIMA, Takayuki

HAGIWARA, Shigeo

MIYASAKA, Takeshi

WAKO, Yasushi

MIURA, Michiaki

KAWARAI, Yuya

NAWATA, Kento

Rotational Acetabular Osteotomy

Hip joint

[SUMMARY] 【Objectives】To evaluate the long-term outcome of rotational acetabular osteotomy（RAO） by the cumulative 15-year survivorship with conversion to total hip arthroplasty. 【Methods】We retrospectively reviewed 30 joints in a cohort of 25 patients, who underwent RAO for hip dysplasia between August 1985 and August 2001. 【Results】The cumulative Kaplan-Meier survivorship was 100% at 15-years postoperatively. However, 6 joints were converted to THA after those 15 years and survivorship was 80% at final follow up of 19.5 years. 【Conclusion】RAO is an effective surgical procedure for treating symptomatic dysplastic hips in preosteoarthritis and early-stage osteoarthritis, and it maintained good or excellent hip function in the majority of patients at 15 years after the surgery.

2433-4243