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Decreasing the Abnormal Internally Rotated Talus After Lateral Ankle Stabilization Surgery.
Hong-Yun Li1, Li Cao2, Hong Li1
1Sports Medicine Center of Fudan University; Department of Sports Medicine and Arthroscopy Surgery, Huashan Hospital, Shanghai, China.
Orthopaedic Journal of Sports Medicine
|September 6, 2021
Summary
Ankle stabilization surgery significantly reduced abnormal internal talus rotation in patients with mechanical ankle instability (MAI). This improvement was observed regardless of whether ligament repair or reconstruction was performed.
Area of Science:
- Orthopedic Surgery
- Biomechanics
- Sports Medicine
Background:
- Mechanical ankle instability (MAI) is often associated with increased internal rotation of the talus.
- Understanding talar position is crucial for managing MAI.
Purpose of the Study:
- To evaluate talar rotation before and after lateral ankle stabilization surgery in MAI patients.
- To compare talar rotation between ligament repair and reconstruction groups post-surgery.
Main Methods:
- Retrospective case-control study of 56 MAI patients undergoing arthroscopic lateral ankle stabilization.
- Magnetic resonance imaging (MRI) used to measure Malleolar Talus Index (MTI) pre- and post-operatively.
Main Results:
- Internal talus rotation significantly decreased after surgery (83.3° vs 86.7°, P < .01).
- No significant difference in talar rotation was found between ligament repair and reconstruction groups.
Conclusions:
- Ankle lateral stabilization surgery effectively reduces abnormal internal talus rotation in MAI.
- Surgical technique (repair vs. reconstruction) did not significantly impact talar rotation outcomes.
