Computer-assisted cup positioning in total hip arthroplasty: usefulness, limits and future

Abstract

The basic hypothesis for computer-assisted placement of the cup in total hip arthroplasty (THA) is that navigation will improve cup positioning around the targeted values previously defined in the literature as the gold standard for cup placement and reduce the number of outliers. Reducing the outliers will theoretically reduce the number of dislocation, improve range of motion and reduce wear. We will present the surgical technique, and the results of a prospective randomized study comparing computer-assisted cup positioning with free-hand placement. Furthermore we will outline some limitations of the navigation systems in hip surgery observed during our early experience through the results of complementary anatomical and clinical studies. Finally we will discuss the potential for future development of computerassisted THA.

Spinopelvic Motion: A Simplified Approach to a Complex Subject

“…ONE Planner Hip by Zimmer Biomet 50) , Intellijoint VIEW by Intellijoint Surgical 51) , OPS (Optimized Positioning System) by Corin 52) , Mako Total Hip by Stryker 53) , and RI.HIP Navigation by Smith & Nephew 54) each offer unique features and methodologies. Integration of these tools with their respective computer-navigated or robotic-assisted THA systems is being increasingly implemented in the effort to enhance the accuracy and effectiveness of surgical proce- www.hipandpelvis.or.kr dures 47,55,56) . Selection of a specific tool can be dependent on various factors, including the surgeon's preference, the specifics of the case, and the available technology.…”