结论后路脊柱融合术是目前治疗腰椎退行性不稳症疗效确切的方法之一，内固定可显著提高融合率，缓解患者症状。
Conclusion Posterior spinal fusion is an effective operation treating degenerative lumbar instability, internal fixation can enhance the rate of spinal fusion and improve symptoms of patients.
目的探讨椎弓完整性滑脱症的X线、生物力学特点与退行性腰椎不稳的病理进程。
Objective To discuss the X-ray and biomechanics characteristic of lumbar spondylolisthesis with intact neural arch and analyze the pathological course of degenerate lumbar instability.
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