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

  • Siri B Winther Department of Orthopaedic Surgery, St Olav’s Hospital HF, Trondheim https://orcid.org/0000-0002-0516-8828
  • Gøril Lund Snorroeggen Department of Orthopaedic Surgery, St Olav’s Hospital HF, Trondheim
  • Jomar Klaksvik Department of Orthopaedic Surgery, St Olav’s Hospital HF, Trondheim
  • Olav A Foss Department of Orthopaedic Surgery, St Olav’s Hospital HF, Trondheim; Department of Neuromedicine and Movement Science, Faculty of Medicine and Health Science, Norwegian University of Science and Technology, Trondheim, Norway
  • Tarjei Egeberg Department of Orthopaedic Surgery, St Olav’s Hospital HF, Trondheim
  • Tina Strømdal Wik Department of Orthopaedic Surgery, St Olav’s Hospital HF, Trondheim; Department of Neuromedicine and Movement Science, Faculty of Medicine and Health Science, Norwegian University of Science and Technology, Trondheim, Norway https://orcid.org/0000-0001-7317-5475
  • Otto S Husby Department of Orthopaedic Surgery, St Olav’s Hospital HF, Trondheim; Department of Neuromedicine and Movement Science, Faculty of Medicine and Health Science, Norwegian University of Science and Technology, Trondheim, Norway

DOI:

https://doi.org/10.2340/17453674.2022.4878

Keywords:

Arthroplasty, Knee

Abstract

Background and purpose: Outcomes following revision total knee arthroplasty (TKA) may depend on the indication for revision surgery. We compared pain, patient-reported 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 follow-up, 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.

Downloads

Download data is not yet available.

Published

2022-10-19

How to Cite

Winther, S. B., Snorroeggen, G. L., Klaksvik, J., Foss, O. A., Egeberg, T., Wik, T. S., & Husby, O. S. (2022). The indication for aseptic revision TKA does not influence 1-year outcomes: an analysis of 178 full TKA revisions from a prospective institutional registry. Acta Orthopaedica, 93, 819–825. https://doi.org/10.2340/17453674.2022.4878

Issue

Section

Non-randomized clinical study