ArticleInternational orthopaedics2024
The influence of patellar morphology on clinical outcomes after unicompartmental knee arthroplasty.
Article in International orthopaedics, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.
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Who cites it
5 citing papers in PubMed.
- Factors associated with patient dissatisfaction after unicompartmental knee arthroplasty: a retrospective cohort analysis of 978 patients.BMC musculoskeletal disorders · 2026Article
- The correlation between preoperative patellar tilt and clinical outcomes following unicompartmental knee arthroplasty.Journal of orthopaedic surgery and research · 2026Article
- Differences in characteristic morphological variability among distal femurs based on sex and ethnicity.Bone & joint open · 2026Article
- Impact of Wiberg patellar morphology on patient-reported outcomes following unicompartmental knee arthroplasty: A 3 ~ 5 year retrospective cohort analysis.BMC musculoskeletal disorders · 2025Article
- Wear patterns of compartments in varus knee osteoarthritis among an asian population: A cross-sectional study with radiographic and intraoperative analysis.International orthopaedics · 2025Article
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Authors and funding
6 authors.
Funding
Abstract
purposeTo evaluate the influence of patellar morphology on functional outcomes and patellofemoral joint alignment after unicompartmental knee arthroplasty (UKA).
methodsThis study retrospectively analyzed the clinical and imaging data of 207 patients with osteoarthritis of the unicompartment of the knee who underwent UKA between September 2020 and April 2023. Patients were divided into three groups according to the Wiberg classification: group W1 (I, n = 47), group W2 (II, n = 117), and group W3 (III, n = 43). Knee function was assessed using the Hospital for Specialty Surgery (HSS) knee score and Feller patellar score, and the incidence of anterior knee pain after surgery was recorded and compared. Imaging parameters such as patellar tilt angle (PTA), lateral patellofemoral angle (LPA) and Insall-Salvati ratio (ISR) were measured to assess patellofemoral joint alignment.
resultsThe HSS scores of the three groups were not statistically different; the postoperative Feller scores of the group W3 differed significantly from those of the other two groups. The incidence of early postoperative anterior knee pain was higher in the group W3 than in the other two groups. The difference between preoperative PTA, postoperative PTA and preoperative LPA in the group W3 and the other two groups was statistically significant.
conclusionPatients with Wiberg III patellae exhibited worse patellar scores, as well as more anterior knee pain and patellar tilt postoperatively. This finding highlights the need for individualized treatment to the Wiberg III patella during UKA to enhance surgical outcomes.
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