Zhongguo xiu fu chong jian wai ke za zhi = Zhongguo xiufu chongjian waike zazhi = Chinese journal of reparative and reconstructive surgery · 2017
[Biomechanical effect of anteromedial coronoid facet fracture and lateral collateral ligament complex injury on posteromedial rotational stability of elbow].
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Dong Hongxian, Huang Fuguo
Аннотация
OBJECTIVE: To investigate the effect of anteromedial coronoid facet fracture and lateral collateral ligament complex (LCLC) injury on the posteromedial rotational stability of the elbow joint.
METHODS: The double elbows were obtained from 4 fresh adult male cadaveric specimens. Complete elbow joint (group A, n=8), simple LCLC injury (group B, n=4), simple anteromedial coronoid facet fracture (group C, n=4), and LCLC injury combined with anteromedial coronoid facet fracture (group D, n=8). The torque value was calculated according to the load-displacement curve.
RESULTS: There was no complete dislocation of the elbow during the experiment. The torque values of groups A, B, C, and D were (10.286±0.166), (5.775±0.124), (6.566±0.139), and (3.004±0.063) N·m respectively, showing significant differences between groups ( P<0.05).
CONCLUSION: Simple LCLC injury, simple anteromedial coronoid facet fracture, and combined both injury will affect the posteromedial rotational stability of the elbow.
METHODS: The double elbows were obtained from 4 fresh adult male cadaveric specimens. Complete elbow joint (group A, n=8), simple LCLC injury (group B, n=4), simple anteromedial coronoid facet fracture (group C, n=4), and LCLC injury combined with anteromedial coronoid facet fracture (group D, n=8). The torque value was calculated according to the load-displacement curve.
RESULTS: There was no complete dislocation of the elbow during the experiment. The torque values of groups A, B, C, and D were (10.286±0.166), (5.775±0.124), (6.566±0.139), and (3.004±0.063) N·m respectively, showing significant differences between groups ( P<0.05).
CONCLUSION: Simple LCLC injury, simple anteromedial coronoid facet fracture, and combined both injury will affect the posteromedial rotational stability of the elbow.