[Effect of calcaneocuboid arthrodesis on three-dimensional kinematics of talonavicular joint].
OBJECTIVE
To discuss the effect of the calcaneocuboid arthrodesis on three-dimensional kinematics of talonavicular joint and its clinical significance.


METHODS
Ten fresh-frozen foot specimens, three-dimensional kinematics of talonavicular joint were determined in the case of neutral position, dorsiflexion. plantoflexion, adduction, abduction, inversion and eversion motion by means of three-dimensional coordinate instrument (Immersion MicroScribe G2X) before and after calcaneocuboid arthrodesis under non-weight with moment of couple, bending moment, equilibrium dynamic loading. Calcaneocuboid arthrodesis was performed on these feet in neutral position and the lateral column of normal length.


RESULTS
A significant decrease in the three-dimensional kinematics of talonavicular joint was observed (P < 0.01) in cadaver model following calcaneocuboid arthrodesis. Talonavicular joint motion was diminished by 31.21% +/- 6.08% in sagittal plane; by 51.46% +/- 7.91% in coronal plane; by 36.98% +/- 4.12% in transverse plane; and averagely by 41.25% +/- 6.02%.


CONCLUSIONS
Calcancocuboid arthrodesis could limite motion of the talonavicular joints, and the disadvantage of calcaneocuboid arthrodesis shouldn't be neglected.
Chen
Yanxi
Y
Department of Orthopaedics, Tongji Ilospital, Tongji University, Shanghai, 200065, PR China.
Yu
Guangrong
G
Ding
Zhuquan
Z
D000328:Adult; D000843:Ankle Joint / Q000502:physiology* / Q000601:surgery; D001174:Arthrodesis / Q000379:methods; D001696:Biomechanical Phenomena; D002102:Cadaver; D002111:Calcaneus / Q000601:surgery*; D005260:Female; D006801:Humans; D008297:Male; D019857:Osteogenesis, Distraction; D016059:Range of Motion, Articular; D013178:Sports Medicine; D013639:Tarsal Bones / Q000601:surgery; D013640:Tarsal Joints / Q000601:surgery*; D016474:Weight-Bearing / Q000502:physiology