A Practical Method for Acetabulum Component Assembling in Total Hip Arthroplasty with Lateral Position
10.3969/j.issn.1000-6710.2017.12.002
- VernacularTitle:一种实用的侧卧位全髋关节置换术时臼杯安装方法
- Author:
Zhengyuan BAO
1
;
Ke ZHENG
;
Ping MAO
;
Dongyang CHEN
;
Dongquan SHI
;
Jin DAI
;
Yao YAO
;
Jianghui QIN
;
Qing JIANG
;
Zhihong XU
Author Information
1. 南京大学医学院附属鼓楼医院运动医学与成人重建外科 江苏南京210008
- Keywords:
total hip arthroplasty(THA);
lateral position;
reference line;
acetabular component orientation
- From:Chinese Journal of Sports Medicine
2017;36(12):1038-1042
- CountryChina
- Language:Chinese
-
Abstract:
Objective To get a controllable acetabulum component inclination angle during the total hip arthroplasty(THA) with the lateral position,a new method using a self-made instrument was introduced.Methods Totally 80 consecutive patients undergoing THA at the lateral position were enrolled.Forty acetabular components were assembled using a new method with a self-made instrument referring to the 42 degrees' angle drawn on the wall(group A),while another 40 acetabular cups were implanted free-handedly(group B).The postoperative inclination angle was evaluated on the anterior-posterior pelvic radiographs.Results The average inclination angle was 43.3° ± 3.7°(34.7°～49.1°) in group A and 40.3 ± 4.5o(32.8°～50.7°) in group B.Moreover,40/40 of group A and 38/40 of group B were in the Lewinnek's inclination safe zone(P＞0.05),without significant differences between the two groups.Conclusion It is practical and reliable to decide the acetabular component orientation using the lateral position instrument and reference angle on the wall.
