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Treatment of Ankle Osteoarthritis with Total Ankle Replacement Through a Lateral Transfibular Approach
Published on: January 24, 2018
Plantar pressure distribution after tibiotalar arthrodesis.
Reinhard Schuh1, Jochen Gerhard Hofstaetter, Stefan Gerhard Hofstaetter
1Department of Orthopaedic Surgery, Medical University of Innsbruck, Anichstrasse 35, Innsbruck, Austria. reinhard.schuh@uki.at
Clinical Biomechanics (Bristol, Avon)
|March 12, 2011
Summary
Ankle arthrodesis effectively restores function with only minor alterations in foot pressure distribution. This surgical procedure for end-stage ankle osteoarthritis shows minimal impact on how patients bear weight.
Area of Science:
- Orthopedic Surgery
- Biomechanics
- Podiatry
Background:
- Ankle osteoarthritis (OA) is a common cause of pain and disability.
- Ankle OA can significantly alter plantar pressure distribution.
- The impact of ankle arthrodesis on plantar pressure is not well understood.
Purpose of the Study:
- To investigate the effects of unilateral ankle arthrodesis on plantar pressure distribution.
- To compare plantar pressure in operated ankles versus contralateral healthy ankles.
Main Methods:
- 20 patients with unilateral ankle arthrodesis (3-crossed screw technique) were assessed.
- Plantar pressure was measured in five foot regions 25 months post-surgery.
- Clinical (AOFAS score) and radiographic outcomes were evaluated.
Main Results:
- Significant differences in peak pressure and maximum force were observed in the toe and lateral midfoot regions.
- Reduced contact time in the forefoot and decreased contact area in the toe region of the operated foot were noted.
- The American Orthopaedic Foot and Ankle Society (AOFAS) score averaged 79, indicating good functional outcomes.
Conclusions:
- Ankle arthrodesis provides high functional levels post-surgery.
- Plantar pressure distribution shows minimal significant changes after ankle arthrodesis.
- This procedure is an effective treatment for end-stage ankle OA.
