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In Vitro Application of a Wireless Sensor in Flexion-Extension Gap Balance of Unicompartmental Knee Arthroplasty
Published on: May 5, 2023
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Columbus® computer navigated total knee arthroplasty: Gap balancing versus measured resection.
N D Clement1, N Makaram1, J Bell1
1Department of Orthopaedics and Trauma, Borders General Hospital, Huntlyburn, Melrose TD6 9BS, UK.
The Knee
|October 4, 2017
Summary
Computer navigated total knee arthroplasty using the gap balanced technique shows improved functional outcomes compared to measured resection. Patient satisfaction was similar between both total knee arthroplasty methods.
Area of Science:
- Orthopedic Surgery
- Biomedical Engineering
- Knee Arthroplasty
Background:
- Total knee arthroplasty (TKA) aims to restore function and satisfaction.
- Computer navigation is increasingly used in TKA.
- Comparing surgical techniques like gap balancing (GB) and measured resection (MR) is crucial for optimizing outcomes.
Purpose of the Study:
- To compare medium-term functional outcomes and patient satisfaction between GB and MR techniques in computer-navigated TKA.
- To evaluate the effectiveness of GB versus MR in total knee replacement.
- To assess patient-reported outcomes after navigated TKA.
Main Methods:
- Retrospective analysis of 144 computer-navigated TKAs.
- Functional assessment using Oxford Knee Score (OKS) and patient satisfaction.
- Comparison between 44 patients in the GB group and 69 in the MR group at a mean follow-up of 5.4 years.
Main Results:
- The GB group showed a statistically significant higher mean OKS (36.9) compared to the MR group (33.6) (p=0.01).
- Linear regression confirmed GB technique independently improved post-operative OKS.
- Patient satisfaction was higher in the GB group (88.6%) versus MR group (81.1%), but not statistically significant (p=0.31).
Conclusions:
- Computer-navigated TKA using the GB technique yields significantly better functional outcomes in the medium term.
- No significant difference in patient satisfaction was observed between GB and MR techniques.
- GB technique may be advantageous for improving functional recovery in total knee arthroplasty.
