2V. Saraph,E. B, Zwick, C. Uitz, W. Linhart and G.Steinwender.The Baumann Procedure for Fixed Contracture of the Gastrosoleus in Cerebral Palsy.Evaluation of Function of the Ankle After Multilevel Surgery[J]. J Bone Joint SurgBr. 2000,82 (4): 535-540.
3A Carriero,A. Zavatsky, J. Stebbins, T. Theologis and S. J. Shefelbine.Correlation Between Lower Limb Bone Morphology and Gait Characteristics in Children with Spastic Diplegic Cerebral Palsy. J Pediatr Orthop. 2009, 29( 1 ):73-79.
4Bax M, Goldstein M, Rosenbaum P, et al. Proposed definition and classification of cerebral palsy, April 2005 [J ]. DevMed Child Neurol, 2005, 47(8): 571-576.