Related Experiment Video
Updated: Mar 27, 2026
07:33
In Vitro Application of a Wireless Sensor in Flexion-Extension Gap Balance of Unicompartmental Knee Arthroplasty
Published on: May 5, 2023
1.2K
Instability in total knee arthroplasty : assessment and solutions
1Washington University Orthopaedics Joint Preservation, Resurfacing, and Reconstruction Fellowship, 1 Barnes Jewish Hospital Plaza, St. Louis, MO 63110, USA.
The Bone & Joint Journal
|January 7, 2016
Summary
Instability is a common reason for early revision total knee arthroplasty (TKA). Identifying the cause and employing appropriate surgical techniques are crucial for successful treatment of unstable TKA.
Area of Science:
- Orthopedic Surgery
- Biomedical Engineering
Background:
- Instability is a frequent indication for revision total knee arthroplasty (TKA), reported in up to 20% of cases.
- The number of TKAs performed annually is increasing exponentially, necessitating effective treatment strategies.
Purpose of the Study:
- To review the assessment of unstable total knee arthroplasty (TKA).
- To present a preferred treatment algorithm for managing multifactorial instability in TKA.
Main Methods:
- Literature review on TKA instability.
- Description of pre- and intra-operative assessment techniques.
- Discussion of surgical management options for unstable TKA.
Main Results:
- Instability is a significant complication following TKA.
- Accurate diagnosis of the instability's cause is paramount.
- Surgical success depends on gap balancing and appropriate implant selection.
Conclusions:
- A systematic approach to assessing and treating TKA instability is essential.
- Multifactorial instability requires careful consideration of surgical techniques and implant choices.
- Effective management algorithms can improve outcomes for revision TKA.
