Patient-Specific TKA with the VELYS™ Robotic-Assisted Solution.

Abstract

The VELYS™ Robotic-Assisted Solution (VRAS) (DePuy Synthes, Warsaw, Indiana) utilises new technology to accurately collect the bony anatomy and soft tissue envelope of the knee. This enables surgeons to use this information to intraoperatively plan anatomical placement of a total knee arthroplasty (TKA) with preservation of the soft tissues with the aim of restoring functional knee motion. The robotic-assisted saw delivers precise, accurate, and efficient delivery of this implantation plan. This article describes the patient-specific TKA technique which maximises the full potential of VRAS; however, all TKA techniques and alignment philosophies can be accommodated with VRAS. The first case was performed in late 2020. An early outcome study shows an improvement in knee function and pain with activity at discharge and six weeks and a neutral surgical time comparable with the author's extensive experience with patient-specific balanced TKA with navigation. Only a limited number of patients have one-year results. However, the data of this limited cohort demonstrates favourable outcome scores and high patient satisfaction.