4[3]Comette L,Verpoorten O,Lagae L, et al. Tethered cord syndrome in occult spinal dysraphism:timing and outcome of surgical release4[J]. Neurology. 1998;50:1761-1765.
5[9]Wolf S, Schneble F, Troger J. The conus medullaris; time of ascendence to nomal level[J]. pediatr Radial. 1992;22:590-597.
6[10]Warder DE, Oakes WJ. Tethered cord syndrome and the conus in a normal position [J]. Neurosurg. 1993;33;374-386.
7[11]Cornette L,Verpoorten C,Lagael L,et al. Closed spinal dysraphism: a review on diagnosis and treatment in binfancy[J]. Europ J Pediatr Neurol. 1998;2:179-185.
8[12]Mccullough DC,Levy LM,Dichiro G, et al. Toward the prediction of neurological injury from tethered spinal cord : investigation of cord motion with magnetic resonance[J].pediatr neurosurg. 1990-1991;163-167.
9[13]Satar N,Bauer SB, Shefner J,et al. The effect of delayed diagnosis and treatment-patient with an accult spinal dysraphism[J]. The Journal of urology. 1995;154:754-758.
10[15]Pang D. Split cord malformation clinical syndrome[J]. Neurosurgery. 1992;31(3):481-500.
