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ArticleEuropean journal of orthopaedic surgery & traumatology : orthopedie traumatologie2025

Medial fixed-bearing unicompartmental knee arthroplasty in patients with or without patellofemoral osteoarthritis: is there any difference in clinical outcomes?

Guilherme Moreira de Abreu-E-Silva, Igor Guedes Nogueira Reis, Elton Bueno, Túlio Vinícius de Oliveira Campos, Riccardo Gobbi, André Kruel, Marco Antônio Percope de Andrade

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Article in European journal of orthopaedic surgery & traumatology : orthopedie traumatologie, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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1 · What the graph read from it

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4 · The record

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5 · Who and what money

Authors and funding

7 authors.

Guilherme Moreira de Abreu-E-SilvaDepartamento do Aparelho Locomotor, Faculdade de Medicina, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil. guilhermeorto@gmail.com.
Igor Guedes Nogueira ReisDepartamento do Aparelho Locomotor, Faculdade de Medicina, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil. dr.igorgnreis@gmail.com.
Elton BuenoHospital Felício Rocho, Belo Horizonte, Brazil.
Túlio Vinícius de Oliveira CamposDepartamento do Aparelho Locomotor, Faculdade de Medicina, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil.
Riccardo GobbiUniversidade de São Paulo, São Paulo, Brazil.
André KruelProregen Clínica Médica, Bento Gonçalves, Brazil.
Marco Antônio Percope de AndradeDepartamento do Aparelho Locomotor, Faculdade de Medicina, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposePatients with indication for medial UKA may present with some degree of patellofemoral joint degeneration. The main purpose of this study was to identify the impact of patellofemoral osteoarthritis (PFOA) on the clinical outcomes of medial fixed-bearing UKA.

methodsA retrospective cohort study evaluating the clinical outcomes of medial UKA in patients with isolated medial OA, with or without patellofemoral involvement. Data collected included demographic information, pain analog scale scores, range of motion (ROM), KOOS and Oxford Knee Score, and knee radiographs.

resultsThe statistical analysis included 112 patients. The average follow-up was 34.1 months. One patient in the non-PFOA group presented with deep vein thrombosis. No difference was found between groups regarding PROMs, OKS, Pain or KOOS. Postoperative range of motion values in Groups A and B were, respectively, 114.5 ± 2.4 and 112.5 ± 3.6 (p = 0.39). Postoperative Oxford Knee Scale in Groups A and B were, respectively, 40.2 ± 2.0 and 40.5 ± 2.5 (p = 0.86). Pain scale reduction in Groups A and B were, respectively, 5 ± 2.1 and 5.0 ± 2.6 (p = 0.17). Postoperative KOSS values in Groups A and B were, respectively, 80.6 ± 2.5 and 82.5 ± 3.0 (p = 0.45).

conclusionUKA is a good option for medial isolated tibiofemoral osteoarthritis in patients without PFOA (Iwano's Grade 1) or with asymptomatic PFOA (Iwano's Grade 2 and 3). Improvements in pain, Oxford Knee Score and KOOS were observed without differences between groups.

Indexed as

Arthroplasty, Replacement, KneeKnee ProsthesisOsteoarthritis, KneePatellofemoral JointAgedFemaleHumansMaleMiddle AgedPain MeasurementRadiographyRange of Motion, ArticularRetrospective StudiesTreatment OutcomeChondromalacia patellaeFixed-bearing designKnee prosthesisPatellofemoral jointUnicompartmental knee arthroplasty

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.