Outcomes After Patellofemoral Arthroplasty With the Arthrex iBalance—A Third Generation Implant

IF 1.5 Q3 ORTHOPEDICS

Arthroplasty Today Pub Date : 2025-03-29 DOI:10.1016/j.artd.2025.101666

Elizabeth C. Bond MB, ChB, FRACS , Emily K. Reinke PhD , Christian Zirbes BS , Emily Poehlein MB , Cynthia L. Green PhD , Richard M. Danilkowicz MD , Annunziato Amendola MD

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引用次数: 0

Abstract

Background

Patellofemoral arthroplasty (PFA) is an attractive option for patients who have isolated patellofemoral disease. This study aimed to assess the functional outcomes and revision rates of primary PFA with a third-generation implant with short- to medium-term follow-up.

Methods

We retrospectively reviewed the records of 49 patients (70 knees) undergoing PFA with the iBalance system by a single surgeon at a quaternary center between January 2015 and September 2022 for demographic and surgical data, as well as complications and revision rates. Patient-reported outcome scores were then collected.

Results

The population was majority female (81.6%) with a median age of 50 years. Four knees were revised to a total knee arthroplasty (5.7%) at an average time point of 2.3 years postoperatively (range: 1.3-3.5 years). The median Single Assessment Numeric Evaluation score at the time of follow-up was 82.5, while the median Kujala score was 72. Lower preoperative Kellgren-Lawrence grade was significantly associated with lower Knee Injury and Osteoarthritis Outcome Scores in all 5 domains (P < .05 for all). Additional procedures were required in 17 knees (24.3%), in most cases to improve patella tracking.

Conclusions

This study is, to our knowledge, the first to examine outcomes of the iBalance PFA system. The results show favorable patient-reported outcomes in this cohort consistent with other 2nd and 3rd generation PFA implants, along with a revision rate similar to its prosthetic peers.

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来源期刊

Arthroplasty Today Medicine-Surgery

CiteScore

2.90

自引率

0.00%

发文量

258

审稿时长

40 weeks

期刊介绍： Arthroplasty Today is a companion journal to the Journal of Arthroplasty. The journal Arthroplasty Today brings together the clinical and scientific foundations for joint replacement of the hip and knee in an open-access, online format. Arthroplasty Today solicits manuscripts of the highest quality from all areas of scientific endeavor that relate to joint replacement or the treatment of its complications, including those dealing with patient outcomes, economic and policy issues, prosthetic design, biomechanics, biomaterials, and biologic response to arthroplasty. The journal focuses on case reports. It is the purpose of Arthroplasty Today to present material to practicing orthopaedic surgeons that will keep them abreast of developments in the field, prove useful in the care of patients, and aid in understanding the scientific foundation of this subspecialty area of joint replacement. The international members of the Editorial Board provide a worldwide perspective for the journal''s area of interest. Their participation ensures that each issue of Arthroplasty Today provides the reader with timely, peer-reviewed articles of the highest quality.