Mobile bearing versus fixed bearing medial unicompartmental knee replacement: an independent two center matched-pairs analysis.
Fixed-bearing
Knee arthroplasty
Mobile-bearing
UKR
Unicompartmental knee replacement
Journal
Archives of orthopaedic and trauma surgery
ISSN: 1434-3916
Titre abrégé: Arch Orthop Trauma Surg
Pays: Germany
ID NLM: 9011043
Informations de publication
Date de publication:
Jun 2023
Jun 2023
Historique:
received:
13
07
2022
accepted:
18
09
2022
medline:
19
5
2023
pubmed:
29
9
2022
entrez:
28
9
2022
Statut:
ppublish
Résumé
The aim of the present study was to compare clinical outcome between patients following fixed-bearing (FB) or mobile-bearing (MB) unicompartmental knee replacement (UKR) for antero-medial knee osteoarthrosis (OA) at two independent orthopedic centers. Matched-pairs were built between 35 patients receiving FB-UKR and 52 patients following MB-UKR regarding age at time of surgery, body mass index (BMI) and range of motion (ROM) preoperatively. Clinical and functional outcome was measured postoperatively by the American Knee Society Score (AKSS-O/AKSS-F), ROM, Tegner Activity Scale (TAS) as well as the Short Form 36 Health Survey (SF-36). The average treatment effect of the treated (ATT) after propensity score matching showed a significantly superior ROM in patients following MB-UKR (FB: 118°, MB: 124°). All remaining parameters had no statistically significant differences between both groups involving TAS, AKSS and SF-36. The present study suggests that MB-UKR can provide a greater ROM compared to FB-UKR on comparable patients. The authors believe that both designs are suitable for adequate improvement of clinical outcome and ROM for patients suffering from antero-medial osteoarthrosis of the knee joint. Retrospective cohort study, Level IV.
Identifiants
pubmed: 36171340
doi: 10.1007/s00402-022-04629-5
pii: 10.1007/s00402-022-04629-5
pmc: PMC10192174
doi:
Types de publication
Journal Article
Langues
eng
Sous-ensembles de citation
IM
Pagination
3383-3389Informations de copyright
© 2022. The Author(s).
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