A new technique for the treatment of lumbar far lateral disc herniation: technical note and preliminary results.

摘要: A newly designed technique for a minimally invasive approach to the laterally herniated disc is presented. Fifteen patients suffering from far lateral herniation (extraforaminal) were operated according this technique. Through small skin incision (1.5 cm), paraspinal muscles are spread by dilators, until working channel of 9 mm inner diameter and 11 outer can be placed. The next steps done through using surgical microscope. No bone resections necessary facet joints left untouched. However, partial resection intertransverse ligament may necessary. mean follow-up period these 15 was 11.5 months, they evaluated visual analogue scale (VAS) Oswestry Disability Index (ODI). average time 43 min. ODI improved 30.6 (preoperative) 14.3 (postoperative). VAS leg pain 7 3.6 (postoperative), which represented statistically significant improvement at significance level (P<0.01). intra-operative or early postoperative complications occurred. one recurrence did occur, treated same This combines advantages three-dimensional control (operating microscope) with minimal trauma endoscopic techniques, while avoiding some shortcomings both microsurgical techniques.