[Conclusion]As a transitional operation before applying the total hip replacement(THR),MMSA offers a newly valuable technology for treatment of young patients or the elderly patients with the higher requirement of movement after the operation.

• [结论]作为THR术前的过渡性术式,MMSA术为治疗年轻的或术后对活动量要求较高的年老髋关节疾病患者提供了一种新的有价值的手术方法。