Pierre-Henri Vermorel, Rodolphe Testa, Thomas Neri, Yann Lelonge, François Lintz, Margot Ronat, Yves Tourne, Rémi Philippot
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Importance of observer experience in clinical assessment of ankle and subtalar joint laxity: Validation of a multidirectional 3D opto-electronic motion analysis protocol.
Background: Role of ankle and subtalar ligaments remains poorly understood due to inconsistent literature. This study validates a protocol for analyzing multidirectional foot and ankle motions and assesses the impact of experience on clinical evaluations of ankle and subtalar instability.
Methods: Five cadaveric feet were tested using a 3D opto-electronic system to measure talus, tibia, and calcaneus motions under varying ligament conditions. Anterior Drawer Test (ADT), varus talar tilt test in neutral flexion (VTTT), and in dorsiflexion (VTTTF) were tested by one experienced and one inexperienced observer. The system measured multidirectional angular rotations.
Results: Intra-observer ICC exceeded 0.97. For ADT, flexion/extension and internal/external rotation correlated significantly with laxity scores for both observers (p < 0.05). For VTTT, varus/valgus correlations were stronger for the experienced observer, VTTTF correlations were significant only for the experienced observer.
Conclusion: 3D opto-electronic is reliable for foot and ankle multidirectional motion analysis. Experience improves subtalar instability assessment accuracy.
期刊介绍：
Foot and Ankle Surgery is essential reading for everyone interested in the foot and ankle and its disorders. The approach is broad and includes all aspects of the subject from basic science to clinical management. Problems of both children and adults are included, as is trauma and chronic disease. Foot and Ankle Surgery is the official journal of European Foot and Ankle Society.
The aims of this journal are to promote the art and science of ankle and foot surgery, to publish peer-reviewed research articles, to provide regular reviews by acknowledged experts on common problems, and to provide a forum for discussion with letters to the Editors. Reviews of books are also published. Papers are invited for possible publication in Foot and Ankle Surgery on the understanding that the material has not been published elsewhere or accepted for publication in another journal and does not infringe prior copyright.
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