Early outcomes and predictors of patient satisfaction after TKA: a prospective study of 200 cases with a contemporary cemented rotating platform implant design

Purpose The purpose of the study was to identify the earliest time point where subjects realized the greatest clinical improvement after TKA, and the time when post-operative scores became superior to pre-operative scores. Post-hoc exploratory analyses were conducted to investigate predictors of ear...

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Bibliographic Details
Published in:Journal of experimental orthopaedics 2021-04, Vol.8 (1), p.30-30, Article 30
Main Authors: van Loon, Corné, Baas, Niels, Huey, Verdonna, Lesko, James, Meermans, Geert, Vergroesen, Diederik
Format: Article
Language:English
Subjects:
Data collection
Knee
Medicine
Medicine & Public Health
Original Paper
Orthopedics
Pain
Patient satisfaction
Rheumatoid arthritis
Surgical Orthopedics
Survival analysis
Transplants & implants
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Summary:Purpose The purpose of the study was to identify the earliest time point where subjects realized the greatest clinical improvement after TKA, and the time when post-operative scores became superior to pre-operative scores. Post-hoc exploratory analyses were conducted to investigate predictors of early post-operative outcomes and patient satisfaction. Methods Six investigators across 4 sites in the Netherlands prospectively implanted 200 subjects with a contemporary cemented rotating platform device. Patient Reported Outcome Measurements (PROMs) KOOS-PS, PKIP, and EQ-5D were collected pre-operatively and post-operatively through 2-years. PROMs change from pre-operative baseline were summarized, along with radiographic outcomes and adverse events (AEs). Pre-operative patient characteristics were explored for correlation with patient outcomes, and patient satisfaction for correlation with KOOS-PS. Results Follow-up compliance was 99% at 6-months, and 95.5% at 2-years. The percentage with higher KOOS-PS compared to baseline was 81.3% at 6-months. KOOS-PS, PKIP, and PKIP subscore means were all better at 6-weeks versus baseline. Gender, BMI, hypertension, and pre-operative KOOS-PS were weakly correlated with 6-week KOOS-PS (multivariate R-squared = 14.1%), but only pre-operative KOOS-PS demonstrated correlation with post-operative KOOS-PS at 6-months or later (R-squared
ISSN:2197-1153
2197-1153
DOI:10.1186/s40634-021-00347-w