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- Title
The indication for aseptic revision TKA does not influence 1-year outcomes: an analysis of 178 full TKA revisions from a prospective institutional registry.
- Authors
WINTHER, Siri B.; SNORROEGGEN, Gøril Lund; KLAKSVIK, Jomar; FOSS, Olav A.; EGEBERG, Tarjei; WIK, Tina Strømdal; HUSBY, Otto S.
- Abstract
Background and purpose -- Outcomes following revision total knee arthroplasty (TKA) may depend on the indication for revision surgery. We compared pain, patientreported outcome measures (PROMs), and patient satisfaction among different indications for an aseptic TKA revision. Patients and methods -- This was a retrospective study of prospective data from an institutional registry of 178 primary TKAs revised between 2012 and 2020. Patients were grouped by the main reason for their revision: loosening, malposition, instability, or stiffness. Pain during mobilization and at rest (NRS 0--10), physical function (KOOS-PS and KSS), and quality of life (EQ-5D) were surveyed preoperatively and at 2 months and 1 year postoperatively. Patient satisfaction was evaluated through questions related to knee function and their willingness to undergo the same surgery again at 1-year follow-up. Results -- Pain and PROMs improved in all groups and did not differ statistically significantly between the 4 groups at 1-year follow-up, but equivalence for pain was not confirmed between groups. Overall, pain during mobilization improved by 2.4 (95% CI 1.9--3.0) at 1-year followup, which was both clinically and statistically significant. Improvements were seen within 2 months of surgery, with no further improvements seen 1 year postoperatively. Approximately 2/3 of patients reported that their knee function had improved and would undergo the same surgery again, at 1-year follow-up. Conclusion -- Statistically significant and clinically relevant improvements in pain and PROMs were seen in all 4 revision groups 1 year after revision TKA. These results may assist clinicians and patients during preoperative counselling.
- Subjects
REPORTING of diseases; TOTAL knee replacement; CONFIDENCE intervals; HEALTH outcome assessment; PATIENT satisfaction; RETROSPECTIVE studies; COMPARATIVE studies; SURVEYS; REOPERATION
- Publication
Acta Orthopaedica, 2022, Vol 93, p818
- ISSN
1745-3674
- Publication type
Article
- DOI
10.2340/17453674.2022.4878