Zhongguo gu shang = China journal of orthopaedics and traumatology
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Using regional assignment to forked method to study lumbar intervertebral disc hemiation (bugle, hernia, prolapse) dependablity and reason of lumbar intervertebral disc herniation and asymptomatic lumbar intervertebral disc herniation. ⋯ There were not necessary relationship between in protrusible size, location, type, compression degree and clinical symptom. This paper may support the mechanism of lumbar intervertebral dise herniation that associated with the following the three aspects: (1) spinal reserve capacity (SRC); (2) involved nerve roots escaping from herniated disc compression and its elastic lengthening function; (3) hypoxia symptosis and anti-ischemia injury compensation of involved nerve roots.