Large variance in a lateral osteoarthritic population prior to and following lateral unicompartmental arthroplasty: An analysis of knee phenotypes.

Autor: Vossen RJM; Hospital for Special Surgery, Department of Sports Medicine and Computer Assisted Surgery, 535 East 70th Street, New York, NY 10021, United States; Amsterdam UMC Location University of Amsterdam, Department of Orthopaedic Surgery and Sports Medicine, Meibergdreef 9, 1105 AZ Amsterdam, the Netherlands. Electronic address: vossenr@hss.edu., Ten Noever de Brauw GV; Hospital for Special Surgery, Department of Sports Medicine and Computer Assisted Surgery, 535 East 70th Street, New York, NY 10021, United States; Amsterdam UMC Location University of Amsterdam, Department of Orthopaedic Surgery and Sports Medicine, Meibergdreef 9, 1105 AZ Amsterdam, the Netherlands., Ruderman LV; Hospital for Special Surgery, Department of Sports Medicine and Computer Assisted Surgery, 535 East 70th Street, New York, NY 10021, United States., Bayoumi T; Hospital for Special Surgery, Department of Sports Medicine and Computer Assisted Surgery, 535 East 70th Street, New York, NY 10021, United States; Amsterdam UMC Location University of Amsterdam, Department of Orthopaedic Surgery and Sports Medicine, Meibergdreef 9, 1105 AZ Amsterdam, the Netherlands., Kerkhoffs GMMJ; Amsterdam UMC Location University of Amsterdam, Department of Orthopaedic Surgery and Sports Medicine, Meibergdreef 9, 1105 AZ Amsterdam, the Netherlands., Zuiderbaan HA; Medische Kliniek Velsen, Department of Orthopaedic Surgery and Sports Medicine, Leeghwaterweg 1B, 1951 NA Velsen-Noord, the Netherlands., Pearle AD; Hospital for Special Surgery, Department of Sports Medicine and Computer Assisted Surgery, 535 East 70th Street, New York, NY 10021, United States.
Jazyk: angličtina
Zdroj: The Knee [Knee] 2024 Aug; Vol. 49, pp. 97-107. Date of Electronic Publication: 2024 Jun 14.
DOI: 10.1016/j.knee.2024.05.010
Abstrakt: Background: Disagreement exists on the optimal coronal alignment target for lateral unicompartmental knee arthroplasty (UKA). An improved understanding of the distribution of coronal alignment and joint line orientation in lateral osteoarthritis (OA) might prove beneficial. The aim of this study was to evaluate the pre- and postoperative Coronal Plane Alignment of the Knee (CPAK) distribution following lateral UKA and to evaluate the association between phenotypic variation and patient-reported outcome measures (PROMs).
Methods: A surgeon's registry was retrospectively reviewed between 2012 and 2022 to identify patients who received primary lateral UKA for advanced, lateral compartment OA. Radiographic measurements were performed, and CPAK phenotypes were determined. The Knee Injury and Osteoarthritis Outcome Score (KOOS), Kujala, and patient satisfaction were analyzed at one-year and two-year follow-up.
Results: A total of 305 knees were included. Preoperatively, seven phenotypes were observed and CPAK3 (54.1%) was most commonly observed. Postoperatively, all nine phenotypes were observed and CPAK6 (32.8%) was predominant. Preoperatively, 23.6% did not have a prearthritic valgus alignment. No significant differences in PROMs were found between individual phenotypes or between preserved and altered phenotypes.
Conclusion: Coronal alignment and joint line orientation were highly variable within a lateral compartment OA cohort. However, no association was demonstrated between superior postoperative PROMs and phenotype variation or phenotype preservation, which might suggest that there is not one universal optimal alignment target. Interestingly, 23.6% of knees with lateral compartment OA did not have a prearthritic valgus alignment, which may have been affected by joint line orientation.
Competing Interests: Declaration of competing interest The authors declare the following financial interests/personal relationships which may be considered as potential competing interests: ‘Roderick J.M. Vossen, Gaby V. ten Noever de Brauw, Lindsey V. Ruderman, Tarik Bayoumi, G.M.M.J. Kerkhoffs declare that no conflict of interest; Hendrik A. Zuiderbaan declares that paid consultant for Smith&Nephew; Andrew D. Pearle declares that paid consultant for Smith&Nephew and DePuy Synthes’.
(Copyright © 2024 Elsevier B.V. All rights reserved.)
Databáze: MEDLINE
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