Improvement of the accuracy of acetabular component placement in total hip arthroplasty by using a navigation system
- VernacularTitle:手术导航系统提高全髋关节置换术中髋臼假体植入精确度的研究
- Author:
Hui ZENG
;
Guoping LIU
;
Nogler MICHAEL
;
Krismer MARTIN
- Publication Type:Journal Article
- Keywords:
Arthroplasty,replacement,hip;
Acetabulum;
Surgical navigation system
- From:
Chinese Journal of Trauma
2003;0(07):-
- CountryChina
- Language:Chinese
-
Abstract:
Objective To evaluate the role of a new non-image based surgical navigation system in improving the accuracy of acetabular component in total hip arthroplasty. Methods Within the prospective study in 12 human cadavers,acetabular component implantations in total hip arthroplasty were performed. For every case,one randomly chosen side was operated on by the non-image based hip navigation system,and the other side by a conventional mechanically guided procedure. According to the design of the study,the acetabular component was placed in beat inclination of 45? and beat anteversion of 20?. Postoperative cup position was determined in both groups by using a mechanical digitizing arm (MicroScribe-3DX). Results In the navigated group,inclination and anteversion reached (45.5? 2.3)? and (21.8?2.5)? respectively. In the control group,inclination and anteversion were (42.5? 6.3)? and (24.8?7.7)?respectively. The difference of inclination was considered statistically significant ( P
