tailieunhanh - báo cáo hóa học:" Endoscopic decompression for intraforaminal and extraforaminal nerve root compression"

Tuyển tập các báo cáo nghiên cứu về hóa học được đăng trên tạp chí sinh học quốc tế đề tài : Endoscopic decompression for intraforaminal and extraforaminal nerve root compression | Doi et al. Journal of Orthopaedic Surgery and Research 2011 6 16 http content 6 1 16 JOURNAL OF ORTHOPAEDIC SURGERY AND RESEARCH RESEARCH ARTICLE Open Access Endoscopic decompression for intraforaminal and extraforaminal nerve root compression Toshio Doi Katsumi Harimaya Yoshihiro Matsumoto Osamu Tono Kiyoshi Tarukado and Yukihide Iwamoto Abstract Objective The purpose of this study was to evaluate the outcome of endoscopic decompression surgery for intraforaminal and extraforaminal nerve root compression in the lumbar spine. Methods The records from seventeen consecutive patients treated with endoscopic posterior decompression without fusion for intaforaminal and extraforaminal nerve root compression in the lumbar spine 7 males and 10 females mean age years were retrospectively reviewed. The surgical procedures consisted of lateral or translaminal decompression with or without discectomy. The following items were investigated 1 the preoperative clinical findings 2 the radiologic findings including MRI and computed tomography-discography and 3 the surgical outcome as evaluated using the Japanese Orthopaedic Association scale for lower back pain JOA score . Results All patients had neurological findings compatible with a radiculopathy such as muscle weakness and sensory disturbance. MRI demonstrated the obliteration of the normal increased signal intensity fat in the intervertebral foramen. Ten patients out of 14 who underwent computed tomography-discography exhibited disc protrusion or herniation. Selective nerve root block was effective in all patients. During surgery 12 patients were found to have a protruded disc or herniation that compressed the nerve root. Sixteen patients reported pain relief immediately after surgery. Conclusions Intraforaminal and extraforaminal nerve root compression is a rare but distinct pathological condition causing severe radiculopathy. Endoscopic decompression surgery is considered to be an appropriate .