Objective: To investigate the clinical effect and operation indications of severe lumbar spondylolisthesis with anterior and posterior once operation.
目的：探讨重度腰椎滑脱病人前后路一期手术的临床疗效及手术适应证。
Result: Reduction, decompression, internal fixation and fusion with autograft and plating was a excellent surgical technique to the severe lumbar spondylolisthesis.
结果复位，减压，固定及植骨融合治疗中重度腰椎滑脱的手术方法效果良好。
Method: Analyze the diagnosis and treatment of a severe lumbar spondylolisthesis case, summarize the surgical treatment experience of severe lumbar spondylolisthesis.
方法通过对一例三度腰椎滑脱病例诊疗经过的分析，总结中重度腰椎滑脱诊疗经验。
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