SICOT-J
Image-based robotic-assisted patellofemoral arthroplasty for isolated patellofemoral osteoarthritis: Short-term survivorship, clinical and radiographic outcomes
By Fogacci A, Favroul C, Andriollo L and 4 others.
Abstract
Introduction
Patellofemoral arthroplasty (PFA) is a valuable option for selected patients with isolated patellofemoral osteoarthritis (PFOA), where component positioning and patellar tracking are critical determinants of outcome. Robotic assistance may improve these aspects, but available literature remains limited. This study evaluated early survivorship, complications, and reoperations after image-based robotic-assisted PFA (RA-PFA). Secondary aims were to assess clinical outcomes, return to sport, radiographic patellofemoral parameters, and agreement between planned and final implanted component position.
Method
This retrospective single-center study included consecutive patients treated with RA-PFA for isolated PFOA between November 2021 and October 2024, with a minimum clinical and radiographic follow-up of 12 months. Primary outcomes were implant survivorship, reoperation-free survivorship, and postoperative complications. Secondary outcomes included Knee Society Score (KSS), range of motion (ROM), return to sport, radiographic patellofemoral parameters, and MAKO-derived plan-to-execution agreement. Kaplan-Meier analysis was used to assess survival.