The therapeutic effects of total hip arthroplasty with combined anteversion angle of femoral neck-acetabu lam in Crowe Ⅳ developmental dysplasia of the hip
10.3969/j.issn.1006-5725.2018.09.027
- VernacularTitle:髋臼-股骨联合前倾角在Ⅳ型DDH非截骨全髋关节置换术中的应用
- Author:
Liangjun ZHAO
1
;
Shan LAO
;
Jinmin ZHAO
;
Zhen' an ZHU
;
Yuanqing MAO
;
Huiwu LI
Author Information
1. 广西医科大学第一附属医院骨科 南宁 530021
- Keywords:
combined anteversion angle;
total hip arthroplasty;
developmental dysplasia of the hip;
effect
- From:
The Journal of Practical Medicine
2018;34(9):1516-1519,1523
- CountryChina
- Language:Chinese
-
Abstract:
Objective To evaluate the clinical efficacy of combined anteversion angle of femoral neck-acetabulam in Crowe Ⅳ developmental dysplasia of the hip (DDH) with Wagner Cone total hip arthroplasty. Methods From June 2013 to February 2016,45 cases of CroweⅣDDH were treated with no femoral shortening osteotomy in THA ,including 25 females and 20 males. The outcomes of anteversion angle of femoral neck and acetabulam were measured in CT scan of hip jiont. The outcomes of abduction angle ,hip center were measured radiologically in X-ray of pelvis. Postoperative function was scored by Harris scoring system. Results The mean follow-up time of the 45 patients was(3.2 ± 0.8)years. Using loosening or revision as the end point ,the survival rate was 100%. The outcomes of preoperative anteversion angle of acetabulam,femoral neck,acetabulam-femoral neck was(27.70 ± 5.35)°,(47.76 ± 7.25)°,and(74.90 ± 8.43)° in CroweⅣgroup,and those of postoperative anteversion angle was(19.82 ± 2.41)° ,(23.35 ± 3.84)° and(44.90 ± 5.18)° ,respectively. There was significant difference between the two groups(P < 0.05). The average height of preoperative dislocation in femoral head was (5.8 ± 1.2)cm and the postoperative average displacement of femoral lesser trochanter was (3.6 ± 0.8)cm. The Harris hip score was improved from preoperative(46.66 ± 7.28)to(90.36 ± 4.72). For most patients,hip pain were significantly relieved ,range of motion of the hip was improved ,and the gait returned to normal. Femoral nerve injury occurred in 2 cases and the case recovered after 3 months respectively. Conclusions The deformity of hip and the stability and matching degree of the prosthesis was evaluated with the combined anteversion angle of femoral neck-acetabulam in CroweⅣDDH. The Wagner Cone can effectively maintain the stability of the hip joint in the non-amputated total hip replacement.
