The technical development has caused a reintroduction of endoscopic techniques directed towards degenerative spine disease. A summary of the endoscopic procedure is given in this review. The spinal canal is reached through an inter-laminar or transforaminal access. In comparison with open surgery the percutaneous transforaminal access seems especially advantageous for the removal of paramedian and/or foraminal herniated disc material. However, careful patient selection is required, as the restricted manoeuverability and working zone of the endoscope and patient specific pathoanatomy in some cases will disfavour endoscopy.
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