The impact of patient-specific instrumentation on unicompartmental knee arthroplasty: a prospective randomised controlled study.

ABSTRACT:

Purpose

Patient-specific instrumentation (PSI) has been proposed as a means of improving surgical accuracy and ease of implantation during technically challenging procedures such as unicompartmental knee arthroplasty (UKA). The purpose of this prospective randomised controlled trial was to compare the accuracy of implantation and functional outcome of mobile-bearing medial UKAs implanted with and without PSI by experienced UKA surgeons.

Methods

Mobile-bearing medial UKAs were implanted in 43 patients using either PSI guides or conventional instrumentation. Intra-operative measurements, meniscal bearing size implanted, and post-operative radiographic analyses were performed to assess component positioning. Functional outcome was determined using the Oxford Knee Score (OKS).

SUBMITTER: Alvand A 

PROVIDER: S-EPMC5966491 | biostudies-literature | 2018 Jun

REPOSITORIES: biostudies-literature