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  • Title: [Minimally invasive transmuscular approach for the treatment of lumbar far lateral disc herniation].
    Author: Fuentes S, Métellus P, Acosta-Diaz U, Pech-Gourg G, Dufour H, Grisoli F.
    Journal: Neurochirurgie; 2009 Feb; 55(1):70-4. PubMed ID: 18565547.
    Abstract:
    BACKGROUND: The purpose of this study was to evaluate a minimally invasive surgical technique for the treatment of lumbar far lateral disc herniation. This technique combines the tubular retractor with the operative microscope. OBJECTIVE AND METHODS: This retrospective study analyzed the files of 26 patients: 15 men and 11 women. The average age was 56 years (range, 19-83 years). The most commonly operated level was L3-L4 (46%), then L4-L5 (30.5%) and finally L2-L3 (15.5%). All patients were operated under general anesthesia. The intraoperative radioscopic location was absolutely necessary. A 12-15 mm paramedian incision was made on the side of the herniation (30 mm from the medial line). We then inserted the tubular muscular retraction system followed by the 14 mm diameter working channel. Guided by operating microscope, the articular isthmus was reamed to expose the root and the disc. The disc herniation was then removed after opening and removing the inter-transverse ligament. RESULTS: The average duration of the surgery was 55 min. This operating time decreased as the surgeons gained experience. The radicular pain, estimated using the analogical visual scale, varied from seven before surgery to two during the postoperative period. All the patients were standing up the day after surgery. The average duration of the postoperative stay in the hospital was three days (range, 1-5 days). We noted no complications from the surgical procedure. The average duration of the follow-up was two years (range, 6-36 months). CONCLUSION: This technique combines the advantages of endoscopic surgery (less muscular and osseous damage) and microscope-guided surgery (three-dimensional vision) and provided good functional results in this series.
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