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  • Title: Bilateral operation of lumbar degenerative central spinal stenosis in full-endoscopic interlaminar technique with unilateral approach: prospective 2-year results of 74 patients.
    Author: Komp M, Hahn P, Merk H, Godolias G, Ruetten S.
    Journal: J Spinal Disord Tech; 2011 Jul; 24(5):281-7. PubMed ID: 20975592.
    Abstract:
    STUDY DESIGN: Prospective study of the patients with degenerative spinal central stenosis, operated bilateral in a full-endoscopic unilateral technique. OBJECTIVE: The objective of this prospective study was to examine the technical possibilities of full-endoscopic interlaminar bilateral technique with unilateral approach in degenerative lumbar central spinal stenosis and predominant leg symptoms using new designed endoscopes and instruments. SUMMARY OF BACKGROUND DATA: Extensive decompression with laminectomy where appropriate, is often still described as the method of choice in the operation of degenerative lumbar spinal stenosis. Nonetheless, tissue-sparing procedures are becoming more common. Endoscopic techniques have become the standard in many areas because of the advantages they offer in surgical technique and in rehabilitation. At the spine, 1 essential point was the developing of the instruments for sufficient bone resection under continuous visual control. This enabled the use in the operation of spinal canal stenoses. METHODS: A total of 72 patients with lumbar central spinal stenosis full-endoscopic unilateral decompression were followed for 2 years. In addition to general and specific parameters, these measuring instruments were used: VAS, German version North American Spine Society Instrument, Oswestry Low-back Pain Disability Questionnaire. RESULTS: The results show that 70.8% no longer have leg pain or it was nearly completely reduced and 22.2% have occasional pain. The decompression results were equal to those of conventional procedures. The complication rate was low. The full-endoscopic techniques brought advantages in these areas: operation, complications, traumatization, and rehabilitation. CONCLUSIONS: The recorded results show that the full-endoscopic interlaminar bilateral decompression with unilateral approach is a sufficient and safe supplement and alternative to conventional procedures when the indication criteria are fulfilled. At the same time, it offers the advantages of a minimally invasive intervention.
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