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Published on: May 5, 2023
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Ligament balancing in total knee arthroplasty-Medial stabilizing technique
1Department of Orthopaedic Surgery, Kyoto University, Kyoto, Japan.
Summary
Achieving medial stability during total knee arthroplasty is crucial for surgical success. Prioritizing medial stability in ligament balancing ensures better outcomes for patients undergoing knee replacement surgery.
Area of Science:
- Orthopedic Surgery
- Biomechanical Engineering
Background:
- Ligament balancing is a critical component of total knee arthroplasty (TKA).
- Traditionally, equalizing medial, lateral, flexion, and extension gaps has been recommended.
- The biomechanical consequences of gap disparities require further investigation.
Purpose of the Study:
- To review the literature on ligament balancing in TKA.
- To discuss the clinical significance of medial, lateral, flexion, and extension gaps.
- To highlight the importance of medial stability in TKA outcomes.
Main Methods:
- Literature review of existing studies on TKA ligament balancing.
- Analysis of biomechanical principles related to knee joint stability.
- Discussion of clinical outcomes associated with different ligament balancing strategies.
Main Results:
- Current evidence emphasizes achieving medial stability throughout the range of motion.
- Discrepancies in gap equalization can lead to suboptimal TKA function.
- Medial stability is a key predictor of long-term TKA success.
Conclusions:
- Medial stability should be prioritized during ligament balancing in TKA.
- A medial stabilizing surgical technique can enhance medial stability in posterior cruciate-retaining TKA.
- Optimizing ligament balancing improves functional outcomes for total knee replacement patients.

