ArticleArchives of orthopaedic and trauma surgery2025
Improved clinical outcomes and a low rate of failure following implantation of a patellofemoral inlay arthroplasty model featuring an enlarged lateral offset - a prospective clinical and radiographic evaluation at short term follow-up.
Article in Archives of orthopaedic and trauma surgery, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. An erratum has been issued. Not yet cited in PubMed.
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- Erratum issued
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8 authors.
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Abstract
purposeTo prospectively evaluate clinical, functional, radiographic, and sports-related short-term outcomes following isolated patellofemoral inlay arthroplasty (PFIA) utilizing an inlay arthroplasty model featuring an enlarged lateral offset.
methodsPatients who underwent patellofemoral inlay arthroplasty (PFIA) with the Hemi-CAP
resultsEighteen patients (19 knees, 86% follow-up) were available at 28.2 ± 9.1 (range 24.0-55.0) months. WOMAC score (55.8 ± 16.0 to 77.2 ± 17.0; p <.001) and VAS for pain (6.1 ± 2.3 to 2.7 ± 2.1; p <.001) improved statistically significantly from pre- to postoperative whereas the mean Tegner Activity Scale (2.5 ± 1.3 to 3.1 ± 1.3; p >.05) improved slightly. No significant progression of tibiofemoral OA (p >.05) or changes in patellar height (p >.05) were observed. No implant-related maltracking or patellar instability was reported. One patient (5.3%) required revision surgery due to aseptic component loosening.
conclusionIsolated patellofemoral inlay arthroplasty (PFIA) utilizing an implant with an enlarged lateral offset has been shown to be an effective and safe intervention for patients with symptomatic patellofemoral osteoarthritis. The procedure significantly improved knee function and pain relief, with low failure rates observed at short-term follow-up. LEVEL OF EVIDENCE: 4, prospective case series.
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