目的：总结同种异体骨移植治疗退行性腰椎滑脱症的疗效。

Objective: To evaluate the effect of treatment of degenerative lumbar spondylolisthesis with allogeneic bone graft.

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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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