ArticleOrthopaedic journal of sports medicine2020
Comparing Return to Sports After Patellofemoral and Knee Arthroplasty in an Age- and Sex-Matched Cohort.
Article in Orthopaedic journal of sports medicine, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers, 3 of them syntheses that pooled it.
What it found
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
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Who cites it
5 citing papers in PubMed, 3 syntheses or guidelines pooled it, 18 citations in OpenAlex.
- High rate of return to low-impact physical activity or sports after total and unicompartmental knee arthroplasty: A systematic review with meta-analysis.Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA · 2026Pooled it
- Returning to running after total knee arthroplasty: a systematic review and a novel multimodal protocol.Musculoskeletal surgery · 2025Pooled it
- Amount and type of physical activity and sports from one year forward after hip or knee arthroplasty-A systematic review.PloS one · 2021Pooled it
- Patellofemoral arthroplasty in isolated Iwano grade IV patellofemoral osteoarthritis: 86% 10-year survival.Journal of experimental orthopaedics · 2025Article
- Shift to low-impact sports and recreational activities following total knee replacement.The International journal of artificial organs · 2022Article
Corrections and comments
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Authors and funding
5 authors at 2 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundReturn to sports is an important outcome in ensuring patient satisfaction after knee-replacement surgery. However, few studies have directly compared unicompartmental knee arthroplasty (UKA), total knee arthroplasty (TKA), and patellofemoral arthroplasty (PFA). HYPOTHESIS: TKA will result in lower rates of return to sports than either UKA and PFA due to increased complexity and invasiveness. STUDY
designCohort study; Level of evidence, 3.
methodsPatients who underwent UKA, TKA, or PFA with 1 to 2 years of follow-up were sent a questionnaire regarding return to sports, satisfaction with return to sports, pain, the University of California, Los Angeles activity scale, and the High Activity Arthroplasty Score (HAAS). The patients who underwent either TKA or UKA were matched 2:1 with regard to age and sex to patients who underwent PFA. Differences were compared using analysis of variance,
resultsA total of 202 patients were eligible. After matching, the final cohort consisted of 23 PFA patients, 46 UKA patients, and 46 TKA patients. The majority of patients were female (87%), and the mean ± SD age was 56 ± 9.1 years. The UKA group had higher HAAS values than the TKA group pre- and postoperatively (9.9 vs 7.1 [
conclusionPatients who underwent UKA reported better activity scores and return-to-sports rates than patients who had TKA and PFA. No differences were found in improvement after surgery, suggesting that preoperative differences were reflected postoperatively. These findings inform shared decision making and can help to manage patient expectations after surgery.
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