[Short-term effectiveness of percutaneous endoscopic spine surgery for treatment of XXXX with posterior ring apophysis separation].

@entity1 @entity174 @entity548 @entity190 @entity1410 @entity130 @entity890
OBJECTIVE: To investigate the feasibility and short-term effectiveness of percutaneous endoscopic spine surgery for treatment of @entity890 with posterior ring apophysis separation. METHODS: Between July 2008 and January 2013, 57 @entity1 with @entity890 and posterior ring apophysis separation were treated. There were 39 males and 18 females, aged from 13 to 46 years (mean, 26.7 years). Of 57 cases, 29 had a clear @entity130 history. All @entity1 had @entity890 , and the location was at L4, 5 in 22 cases and at L5, S1 in 35 cases; there were 25 cases of lateral bone fragments and 32 cases of central cortical and cancellous fragments. While @entity174 located at posterior inferior edge of the vertebrae at L4 level in 9 cases and at Ls level in 8 cases, at posterior superior edge at L5 level in 13 cases and in S1 level in 27 cases. Percutaneous endoscopic surgeries were performed via interlaminar or transforaminal approach from unilaterally symptomatic side for discectomy of @entity890 and partial or complete resection of free bone fragments. RESULTS: Accurate positioning was obtained in all @entity1 during operation, and no complication of nerve @entity130 , @entity1410 formation, or dural tear occurred. The operation time was 20-85 minutes; the intraoperative fluoroscopy times were 2-15 times, and the @entity190 was 3-10 mL. Postoperative radiographic examination showed that bone fragment was not removed in 16 cases, was partly removed in 32 cases, and was completely removed in 9 cases. Disc was completely removed. All @entity1 were followed up 10-64 months (median, 16 months). According to modified Macnab criteria for the evaluation of effectiveness, the results were excellent in 48 cases, good in 6 cases, and fair in 3 cases, and the excellent and good rate was 94.7%. CONCLUSION: Percutaneous endoscopic spine surgery through unilaterally symptomatic approach has advantages of small tissue damage and lumbar structure damage, less @entity548 , and shorter recovery time. It has a good short-term effectiveness, but long-term effectiveness need further follow-up.
