9[5]Okada K, Oka S, Tohge K, et al. Thoracic myelopathy caused by ossification of the ligamentum. flavum:Clinicopathologic study and surgical treatment. Spine, 1991, 16(3): 280
10[8]Yonenobu K,Korkusuz F,Hosono N, et al. Lateral rhachotomy for thoracic spinal lesions. Spine, 1990, 15(11): 1121
