Early migration in unicompartmental knee arthroplasty: a radiostereometric study of 26 patients with 24 months of follow-up

Jantsje H Pasma; Brechtje Hesseling; Nicole de Esch; Hennie Verburg; Dieu D Niesten; Nina M C Mathijssen

doi:10.2340/17453674.2022.5672

Early migration in unicompartmental knee arthroplasty: a radiostereometric study of 26 patients with 24 months of follow-up

Authors

Jantsje H Pasma Reinier Haga Orthopedisch Centrum, Zoetermeer, The Netherlands https://orcid.org/0000-0002-8769-1021
Brechtje Hesseling Reinier Haga Orthopedisch Centrum, Zoetermeer, The Netherlands; Department of Orthopedics, Reinier de Graaf Hospital, Delft, The Netherlands https://orcid.org/0000-0003-2159-1893
Nicole de Esch Reinier Haga Orthopedisch Centrum, Zoetermeer, The Netherlands; Department of Orthopedics, Reinier de Graaf Hospital, Delft, The Netherlands
Hennie Verburg Reinier Haga Orthopedisch Centrum, Zoetermeer, The Netherlands; Department of Orthopedics, Reinier de Graaf Hospital, Delft, The Netherlands
Dieu D Niesten Reinier Haga Orthopedisch Centrum, Zoetermeer, The Netherlands; Department of Orthopedics, Reinier de Graaf Hospital, Delft, The Netherlands
Nina M C Mathijssen Reinier Haga Orthopedisch Centrum, Zoetermeer, The Netherlands; Department of Orthopedics, Reinier de Graaf Hospital, Delft, The Netherlands

DOI:

https://doi.org/10.2340/17453674.2022.5672

Keywords:

Arthroplasty, Implants, Knee, Osteoarthrosis, Radio Stereophotogrammetric Analysis, Radiological imaging

Abstract

Background and purpose: Aseptic loosening, mainly caused by migration, is one of the most common indications for revisions in unicompartmental knee arthroplasty (UKA). In this study, we investigated the early migration of the Persona Partial Knee (PPK, Zimmer Biomet, Warsaw, IN), a cemented medial fixed-bearing unicompartmental knee prosthesis, and evaluated the clinical results.
Patients and methods: 26 primary PPKs were implanted. Radiographs were obtained direct postoperatively, at 6 weeks, 6, 12 and 24 months postoperatively. Migration of the femoral and tibial component was calculated using model-based radiostereophotogrammetric analysis (mRSA) in terms of translations and rotations. Patient-reported outcome measures (PROMs) were also registered.
Results: At 24 months postoperatively, we found low migration of both the femoral and tibial component in the first 6 months, after which both components stabilized. Only the rotation of the tibial component about the z-axis did not stabilize. All PROMs improved after 24 months compared with preoperative PROMs.
Conclusion: The Persona Partial Knee shows low migration of both the femoral and tibial component and PROMs were improved at 24 months follow-up. Long-term follow-up is needed to investigate the performance of the prosthesis compared with other prostheses.

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Published

2022-12-19

How to Cite

Pasma, J. H., Hesseling, B., de Esch, N., Verburg, H., Niesten, D. D., & Mathijssen, N. M. C. (2022). Early migration in unicompartmental knee arthroplasty: a radiostereometric study of 26 patients with 24 months of follow-up. Acta Orthopaedica, 93, 914–921. https://doi.org/10.2340/17453674.2022.5672

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Issue

Acta Orthopaedica, Volume 93 (2022)

Section

Non-randomized clinical study

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This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.

Acta Orthopaedica (Scandinavica) content is available freely online as from volume 1, 1930. The journal owner owns the copyright for all material published until volume 80, 2009. As of June 2009, the journal has however been published fully Open Access, meaning the authors retain copyright to their work. As of June 2009, articles have been published under CC-BY-NC or CC-BY licenses, unless otherwise specified.