Total hip replacement in patients with congenrital acetabular dysplasia / 中国矫形外科杂志

ABSTRACT

[Objective]To evaluate the mid-term and long-term clinical outcome of total hip replacement in patients with congerital acetabular dysplasia.[Method]Twenty-five hips in 23 patients diagnosed as congemtal acetabular dysplasia were treated with total hip replacement.According to the classification ofPemer,17 hips belonged to type Ⅰ,5 type Ⅱ,2 type Ⅲ,and 1 type Ⅳ.The fixation of the prosthetic components was as follows 5 cups and 7 stems with cement,20 cups and 18 stems with un-cement.[Result]The complications included femur trochanter fracture in 1 case,deep vein thrombosis in 1 case,limb discrepancy in 3 cases,All patients were followed.up with the duration of 8.2 years(3 to 11 years).The preoperative Harris hip score ranged from 25 to 59(average 44.5).After the operation,the pain was completely relieved and the Harris hip score ranged from.63 to 97(average 85.6).[Conclusion]Total hip replacement in congenital acetabular dysplasia could be somewhat difficult,because of the liability to complications.The technical difficulties encountered during surgery included the correction of the length of bilateral lower extremity,the balance of the abductor muscles,the release of the soft tissue,the dealing of the superior seganental defect of acetabulum and selection of the components.