Effects of lateral instability on ankle coupled motions in vivo using 3D fluoroscopy.

Autor: Lin SH; Department of Biomedical Engineering, National Taiwan University, Taipei, Taiwan.; Department of Surgery, Division of Plastic Surgery, Shin Kong Wu Ho-Su Memorial Hospital, Taipei, Taiwan., Hung LW; Department of Biomedical Engineering, National Taiwan University, Taipei, Taiwan.; Department of Orthopedic Surgery, Shin Kong Wu Ho-Su Memorial Hospital, Taipei, Taiwan., Kuo MY; Department of Physical Therapy, China Medical University, Taichung, Taiwan., Lin CC; Department of Electrical Engineering, Fu-Jen Catholic University, Taipei, Taiwan., Lu HY; Department of Biomedical Engineering, National Taiwan University, Taipei, Taiwan., Weng PL; Department of Biomedical Engineering, National Taiwan University, Taipei, Taiwan., Fan CL; Department of Biomedical Engineering, National Taiwan University, Taipei, Taiwan., Kuo CC; Department of Orthopedic Surgery, China Medical University Hospital, Taichung, Taiwan.; Department of Orthopedic Surgery, School of Medicine, China Medical University, Taipei, Taiwan., Lu TW; Department of Biomedical Engineering, National Taiwan University, Taipei, Taiwan.; Department of Orthopaedic Surgery, School of Medicine, National Taiwan University, Taipei, Taiwan.
Jazyk: angličtina
Zdroj: Journal of orthopaedic research : official publication of the Orthopaedic Research Society [J Orthop Res] 2023 May; Vol. 41 (5), pp. 1076-1087. Date of Electronic Publication: 2022 Sep 29.
DOI: 10.1002/jor.25448
Abstrakt: Lateral ankle instability (LAI) compromises the normal kinematics of the ankle, affecting activities of daily living. In vitro kinematics of ankles with LAI during single-plane motions are available, but the active control stability of these motions remains unclear. The current study measured the 3D ankle kinematics during unresisted single-plane motion tests using a bi-plane fluoroscope with a CT model-based 2D/3D registration method in 12 patients with LAI and 14 healthy peers. The coupling of the kinematic components at the talocrural and subtalar joints was quantified by the path difference between the forward and return paths of the coupled motion. Significantly increased path differences were found in the subtalar dorsiflexion/plantarflexion and inversion/eversion components during internal/external rotation tests (p < 0.05). During inversion/eversion, significantly reduced tibiocalcaneal ranges of motion and the path differences in the talocrural and subtalar dorsiflexion/plantarflexion components were noted (p < 0.05). The current results suggest that chronic LAI had compromised control stability at the subtalar joint during internal/external rotation tests and a conservative motion control strategy with significantly reduced ranges of motion to maintain good control of out-of-plane motion components in response to direct challenges of the anterior talofibular ligament during inversion/eversion tests. The current results also suggest that, compared to kinematic patterns of individual components, the path difference of the coupled motion may serve as a better measure of the motion control stability of the ankle in differentiating LAI from healthy controls.
(© 2022 Orthopaedic Research Society. Published by Wiley Periodicals LLC.)
Databáze: MEDLINE
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