Abstract:

Objective　To discuss the effecacy of new allograft posterior lumbar fusion cage of anatomical shape in patients with lumbar disc herniation.　Methods　32 patients with lumbar disc herniation were enrolled and all patients were given treatment of new allograft posterior lumbar fusion cage of anatomical shape. Visual analogue scale（VAS） was applied to evaluate the degree of lumbago and leg pain before and after operation and  Oswestry disability index（ODI）was applied to evaluate the postoperative recovery of patients.The VAS of lumbago and leg pain,ODI score and average intervertebral disc height before and after operation of all patients were compared.    Results    all 32 patients were followed up for a mean follow-up period (9.2± 3.7) months. All patients achieved bony fusion and no serious adverse reactions occurred 6 months after the operation. 6 months after the operation and the last follow-up lumbago and leg pain VAS and ODI score was significantly lower than that before operation, and the differences were statistically significant (P<0.05). 6 months after the operation and the last follow-up, the average height of the intervertebral space was significantly higher than that before the operation, and the difference was statistically significant (P<0.05).　Conclusion　The new allograft posterior lumbar fusion cage of anatomical shape can obviously improve the clinical symptoms of patients with lumbar disc prolapse and it is worth popularization and application.

Key words: Lumbar disc prolapse, Bone allograft, Interbody fusion, Anatomy