Geodesic
Modeling the posture of a cerebral palsy patient with hamstring syndrome after surgical correction by the Zhuravlev procedure
Vestnik Moskovskogo universiteta. Matematika, mehanika, no. 2 (2010), pp. 18-23

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Cerebral palsy patients with hamstring muscle spasticity are characterized by a higher tension of posterior two-joint muscles of a thigh. The upright posture of such patients takes the Z-shaped form. The Eggers operation and the tendoplastic operation by Zhuravlev help the limbs to straighten. In this paper a mathematical model of the patient posture after a Zhuravlev operation is proposed. The numerical results obtained show that a patient underwent such an operation can keep the upright posture even with a higher tonus of the rectus muscle of the thigh. This is impossible for a patient after an Eggers operation. 
@article{VMUMM_2010_2_a2,
     author = {P. A. Kruchinin and O. V. Nikitina},
     title = {Modeling the posture of a cerebral palsy patient with hamstring syndrome after surgical correction by the {Zhuravlev} procedure},
     journal = {Vestnik Moskovskogo universiteta. Matematika, mehanika},
     pages = {18--23},
     publisher = {mathdoc},
     number = {2},
     year = {2010},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/VMUMM_2010_2_a2/}
}
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P. A. Kruchinin; O. V. Nikitina. Modeling the posture of a cerebral palsy patient with hamstring syndrome after surgical correction by the Zhuravlev procedure. Vestnik Moskovskogo universiteta. Matematika, mehanika, no. 2 (2010), pp. 18-23. http://geodesic.mathdoc.fr/item/VMUMM_2010_2_a2/