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Treatment of Protrusion of the Central Lumbar Disc by MicroEndoscopic Discectomy System II (MEDII/METRX)

Objective: To describe the treatment and the results of protrusion of the central lumbar disc by micronedoscopic discectomy system Ⅱ(MEDII) and a L-sacraper invented by ourselves through posterior approach. Methods: From November 1999 to Ferbruary 2002, 48 cases of protusion of the central type lumbar intervertebral disc were treated by MEDII. Indication, operative procedures and limit experience were described. Results: No postoperative complication was found in our group with an everage of 16.5 months follow up, the rate of excellent and good was 95.8%,according to Nakal evaluation standard. Conclusion: Perfect apparatus, experienced operative skill of MEDII are the key to success and effective treatment.