Impact of muscle strength on knee joint stability in static loading / 南方医科大学学报
Journal of Southern Medical University
; (12): 2625-2628, 2010.
Article
em Zh
| WPRIM
| ID: wpr-267724
Biblioteca responsável:
WPRO
ABSTRACT
<p><b>OBJECTIVE</b>To study the in vivo stability of normal and anterior cruciate ligament (ACL)-injured knee joint before and after epidural anesthesia under 134 N pre-loading and evaluate the influence of muscular tension on the knee stability.</p><p><b>METHODS</b>Eight volunteers with unilateral ACL rupture and normal contralateral knee were enrolled in this study. CT (3D) images and 2 orthogonal images of the knee were captured at 0°, 30°, 60°, and 90° under 134 N pre-loading. The orthogonal images were used to recreate the in vivo knee positions at each of the targeted flexion angles by 2D/3D registration to analyze the tibial translation data.</p><p><b>RESULTS</b>The anterior tibia translation of both the intact and ACL-injured knees after anesthesia was significantly different from that before anesthesia at all the angles (P<0.05). The anterior tibial translation of the intact knee after anesthesia increased by 1.7 mm at 0°, 2.7 mm at 30°, 2.6 mm at 60°, and 2.3 mm at 90°, as compare to the increase of ACL-injured knee by 4.2 mm, 2.6 mm, 1.2 mm, and 1.6 mm, respectively.</p><p><b>CONCLUSION</b>The muscular tension has evident influence on the knee stability in static loading.</p>
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Assunto principal:
Fisiologia
/
Força Muscular
/
Instabilidade Articular
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Articulação do Joelho
Limite:
Adult
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Female
/
Humans
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Male
Idioma:
Zh
Revista:
Journal of Southern Medical University
Ano de publicação:
2010
Tipo de documento:
Article