American Hip Institute

2014- Domb et al. The Learning Curve Associated with Robotic-Assisted Total Hip Arthroplasty. Journal of Arthroplasty

There are no reports examining the learning curve during the adoption of robotic assisted THA. The purpose of this study was to examine the learning curve of robotic assisted THA as measured by component position, operative time, and complications. The first 105 robotic-assisted THAs performed by a single surgeon were divided into three groups based on the order of surgery. Component position, operative time, intra-operative technical problems, and intra-operative complications were recorded. There was a decreased risk of acetabular component malpositioning with experience (P b 0.05). Operative time appeared to decrease with increasing surgical experience (P b 0.05). A learning curve was observed, as a decreased incidence of acetabular component outliers and decreased operative time were noted with increased experience.

Multiple factors have the potential to influence the short- and long-term outcomes of total hip arthroplasty (THA) including patient characteristics, surgical technique, and implant features. Optimal component positioning is one surgeon-controlled factor, which plays a large role in preventing complications including hip dislocations, accelerated bearing wear, poor biomechanics, leg length discrepancy, and revision surgery [1–3]. Currently, hip instability and mechanical loosening account for over 40% of revision hip arthroplasties; and both conditions may be directly related to component positioning [4].

Click here to download the complete publication