A radiological index that influences the outcome following patellofemoral joint arthroplasty: the anterior trochlea offset ratio.

ABSTRACT:

Purpose

Although largely successful, patellofemoral joint arthroplasty (PFA) has a less than satisfactory outcome in some patients. It was hypothesized that certain factors can be identified on radiological review that correlate with poor patient reported outcomes following PFA.

Methods

A retrospective cohort review of 369 patients undergoing PFA at our institution between 2005 and 2018 identified 43 "poor outcome" patients with an Oxford Knee Score (OKS) of less than 20 at 2 years follow up. These cases were matched by sex and age with 43 "good outcome" patients who had an OKS above 40 at 2 years post-op. Multiple radiological measurements were performed including anterior trochlea offset ratio (ATOR), component flexion/extension, component varus/valgus, component to bone w

SUBMITTER: Aweid O 

PROVIDER: S-EPMC10049942 | biostudies-literature | 2023 Apr

REPOSITORIES: biostudies-literature