Abstract
Objective: To evaluate the clinical effects of percutaneous endoscopic transforaminal lumbar interbody fusion (PE-TLIF) for L(4/5) single-segment lumbar spinal stenosis. Methods: From September 2016 to March 2018, 7 patients with L(4/5) single-segment lumbar spinal stenosis were treated by PE-TLIF in the Department of Orthopedics, Beijing Chaoyang Hospital. There were 1 male and 6 females, with a mean age of (57±13) years(43-77 years). The operation time, intraoperative blood lose, blood transfusion and complications were recorded, and the pain relief effects were evaluated by visual analog scale (VAS) score and Oswestry dability index (ODI). The indexes before and after the operation were compared with t test. Results: The average of follow-up time was 13.3 months (6-21 months), and the clinical symptoms relieved significantly. The VAS scores of low back pain and leg pain at 3-day postoperatively and at the last follow-up were (2.28±0.48), (1.57±0.53) and (0.42±0.53), (0.14±0.37), respectively; and the VAS scores were significantly improved when compared with those before the operation[(7.42±0.78), (6.14±1.77)](t=19.718, 6.672, 18.520, 7.937, all P<0.05). At the last follow-up, the ODI score was also significantly lower than that before surgery (54%±10% and 15%±9%, t=12.551, P<0.05). During the follow-up period, one patient had transient hyperreflexia after surgery, and the other 6 patients had no significant complications. None nerve root injury or lower extremity paralysis occurred. Conclusion: PE-TLIF can obtain satisfactory short-term results in the treatment of single-segment lumbar spinal stenosis, with a lower incidence of complications and rapid recovery after surgery.
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