关键词: 髋关节发育不良;髋臼重建;结构植骨;植骨覆盖率

Abstract:

Objective   To evaluate the result of bulk femoral head autograft for acetabular reconstruction in total hip arthroplasty for developmental hip dysplasia patients with severe acetabular deficiency.  Methods   Twenty-five -patients(31 hips) with development hip dysplasia were performed with bulk femoral head autograft for the acetabular reconstruction in THA during 2005-2010. Twenty-nine  hips in 23 patients were successfully followed up in average 5.1 years with mean age of 52. According to Crowe classification, 19 hips in 15 patients were stage III and 10 hips in 8 patients were stage IV. The deficient acetabula were reconstructed by bulk femoral head autograft. With bone guaranteed coverage, patients had prosthesis installed at the original level or closed level of true acetabulum. Radiographic changes and Harris score were evaluated.  Results   None suffered from loosening and collapse during the follow-up. One was revised for dislocation. Harris scores increased from 44 preoperative to 88 at last follow-up.  Conclusion   To reconstruct acetabulum at true acetabular level with satisfactory bone coverage by using bulk femoral head autograft is  an effective and safe way for THA in developmental hip dysplasia.

Key words: Developmental hip dysplasia; Acetabular reconstruction; Structual autograft; Graft coverage