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Revision arthroplasty after unicompartimental knee arthroplasty
Nike Walter1, Johannes Weber1, Maximilian Kerschbaum1
1Department of Trauma Surgery, University Hospital Regensburg, Franz-Josef-Strauß-Allee 11, 93053, Regensburg, Germany.
Journal of Orthopaedic Surgery and Research
|November 13, 2021
Summary
Revision knee arthroplasty increased by 46.3% in Germany over a decade, particularly in younger patients. Infection is a significant factor, highlighting the need for improved strategies to delay primary arthroplasty.
Area of Science:
- Orthopedic Surgery
- Arthroplasty Research
- Public Health Data Analysis
Background:
- Unicompartimental knee arthroplasty (UKA) is increasingly used for knee osteoarthritis.
- Nationwide data on revision rates following UKA are currently limited.
- Understanding revision trends is crucial for optimizing patient outcomes and healthcare resource allocation.
Purpose of the Study:
- To determine the national burden of revision procedures after UKA in Germany from 2008 to 2018.
- To analyze revision trends based on patient age, gender, and reasons for revision (infection vs. aseptic).
- To identify common surgical strategies employed for aseptic revision UKA.
Main Methods:
- Utilized German national revision knee arthroplasty data (2008-2018) from the Federal Statistical Office (Destatis).
- Employed Operation and Procedure Classification System codes to quantify revision rates.
- Analyzed data concerning age, gender, infection status, and prosthesis type.
Main Results:
- Revision UKA procedures rose by 46.3% over the decade, reaching 3105 in 2018, with a trend towards younger patients.
- Septic revisions accounted for 5.7% of all revisions, with a 67.1% increase in septic procedures during the study period.
- The primary treatment for aseptic revision was conversion to a bicondylar surface replacement prosthesis (63.70%), followed by shaft-anchored prostheses (16.2%).
Conclusions:
- The increasing incidence of revision UKA, especially in younger individuals and due to infection, necessitates improved treatment strategies.
- Efforts should focus on delaying primary arthroplasty and preventing periprosthetic joint infections.
- Further research into optimizing UKA and revision procedures is warranted.
