Robotic-assisted total knee arthroplasty improves aseptic survivorship compared to conventional total knee arthroplasty: A minimum 15-year follow-up.

Purpose: This study aimed to compare long-term clinical and radiographic outcomes, as well as implant survivorship, between robotic-assisted and conventional total knee arthroplasty (TKA) using a posterior cruciate-retaining prosthesis.

Methods: A retrospective analysis was conducted on 150 patients who underwent robotic-assisted TKA and 147 patients who underwent conventional TKA for knee osteoarthritis between March 2005 and December 2008, with a minimum follow-up of 15 years. Radiographic assessments included the hip-knee-ankle (HKA) angle, coronal and sagittal alignment of the femoral and tibial components, and alignment outliers, based on full-length standing and lateral radiographs.