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Minimally invasive Oxford medial unicompartmental knee replacement in patients 50 years of age or younger

Walker, Tilman ; Stupp, Julius ; Reiner, Tobias ; Panzram, Benjamin ; Nees, Timo A. ; Innmann, Moritz M. ; Gotterbarm, Tobias ; Merle, Christian

Archives of orthopaedic and trauma surgery, 2023-06, Vol.143 (6), p.3077-3084 [Periódico revisado por pares]

Berlin/Heidelberg: Springer Berlin Heidelberg

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  • Título:
    Minimally invasive Oxford medial unicompartmental knee replacement in patients 50 years of age or younger
  • Autor: Walker, Tilman ; Stupp, Julius ; Reiner, Tobias ; Panzram, Benjamin ; Nees, Timo A. ; Innmann, Moritz M. ; Gotterbarm, Tobias ; Merle, Christian
  • Assuntos: Arthritis ; Arthroplasty, Replacement, Knee - adverse effects ; Follow-Up Studies ; Humans ; Knee ; Knee Joint - surgery ; Knee Prosthesis - adverse effects ; Medicine ; Medicine & Public Health ; Orthopaedic Surgery ; Orthopedics ; Osteoarthritis ; Osteoarthritis, Knee ; Pain - etiology ; Retrospective Studies ; Treatment Outcome
  • É parte de: Archives of orthopaedic and trauma surgery, 2023-06, Vol.143 (6), p.3077-3084
  • Notas: ObjectType-Article-1
    SourceType-Scholarly Journals-1
    ObjectType-Feature-2
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  • Descrição: Introduction The aim of the present study was to assess clinical outcome and mid-term survivorship of mobile-bearing unicompartmental knee arthroplasty in patients 50 years of age or younger. Methods This study reports the results of 119 patients (130 knees) following mobile-bearing medial UKA. Primary indication was advanced osteoarthritis or avascular necrosis of the femoral condyle. The anterior cruciate ligament (ACL) as well as the collateral ligaments were functionally intact, the varus deformity was manually correctable and there was no evidence of osteoarthritis in the lateral compartment. Survivorship analysis was performed with different endpoints and clinical outcome was measured using the Oxford Knee Score (OKS), American Knee Society Score and Functional Score (AKSS-O, AKSS-F), range of motion (ROM), Tegner activity score, University of California Los Angeles score (UCLA) and visual analogue scale for pain (VAS). Results The survival rate was 96.6% at 6.5 years (95% CI 98.7–91.3%; number at risk: 56) and 91.7% (95% CI 96.7–80%; number at risk: 22) at 10 years for the endpoint device related revisions and 91.5% at 6.5 years (95% CI 95.4–84.5%; number at risk: 56) and 86.8% (95% CI 93–76.2%; number at risk: 22) at 10 years for the endpoint revision for any reason. Outcome scores, VAS and ROM showed significant improvements ( p  < 0.001). The mean OKS increased from 26.7 (standard deviation (sd): 7.2) preoperatively to 40.9 (sd: 7.6) at final follow-up, the mean AKSS-O from 48.3 (sd: 13.3) to 87.8 (sd: 14.4) and the mean ROM from 118° (sd: 16.7) to 125° (sd: 11.4). The radiological analysis revealed progression of degenerative changes in the lateral compartment in 39.6% of patients without affecting the functional outcome. Conclusions Medial mobile-bearing UKA is a viable surgical treatment option in young patients with significant improvements in knee function and pain. Further follow-up is necessary to evaluate the long-term efficacy. Level of evidence Retrospective cohort study, Level III.
  • Editor: Berlin/Heidelberg: Springer Berlin Heidelberg
  • Idioma: Inglês
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  • Realização: ABCD-USP USP   Logos de Redes Sociais: Freepik

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