CT-based navigation comparable to imageless navigation in acetabular component insertion .
Imageless navigation for insertion of the acetabular component in total hip arthroplasty: is it as accurate as CT-based navigation?
J Bone Joint Surg Br. 2006 Feb;88(2):163-790 patients with primary osteoarthritis undergoing total hip arthroplasty (THA) were randomised to receive one of three techniques used for implanting the acetabular component. The three methods were by freehand, CT-based, or imageless navigation. The primary outcome was the position of the component based on CT scans of the pelvis postoperatively. Results indicated that the CT-based navigation had comparable outcomes to the imageless navigation method, but was superior to the conventional freehand positioning technique.
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