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J Arthroplasty ; 30(12): 2208-18, 2015 Dec.
Article in English | MEDLINE | ID: mdl-26282499

ABSTRACT

The purpose of this multi-surgeon study was to assess and compare the accuracy of acetabular component placement, leg length discrepancy (LLD), and global offset difference (GOD) between six different surgical techniques and modes of guidance in total hip arthroplasty (THA). A total of 1980 THAs met inclusion criteria. Robotic- and navigation-guided techniques were more consistent than other techniques in placing the acetabular cup into Lewinnek's safe zone (P<0.005 and P<0.05, respectively). Robotic-guided surgery was more consistent than other techniques in placing the acetabular component within Callanan's safe zone (P<0.005). No statistically significant differences were found between groups in the frequency of patients with excessive LLD. Clinically significant differences between groups were not found in the frequency of patients with excessive GOD. Level of Evidence: IV.


Subject(s)
Arthroplasty, Replacement, Hip/methods , Hip Prosthesis , Leg Length Inequality/epidemiology , Robotic Surgical Procedures/statistics & numerical data , Acetabulum/surgery , Aged , Arthroplasty, Replacement, Hip/adverse effects , Arthroplasty, Replacement, Hip/statistics & numerical data , Female , Humans , Illinois/epidemiology , Leg Length Inequality/etiology , Middle Aged , Retrospective Studies , Robotics , Treatment Outcome
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