ESCAPE : Evaluation of Spinal Conservation by Endoscopic Procedures to Avoid Fusion

Inclusion Criteria: * Patient ≥ 18 years old * Patient consulting for a medical reason involving a spinal pathology in the investigating center : Syndrome adjacent to an old lumbar arthrodesis defined on preoperative radiographs by an antero-posterior translation \> 3 mm, segmental kyphosis \> 10° or a disc height reduced by more than 50%, or on preoperative MRI by central stenosis of grade C or D of the Schizas classification or a herniated disc Grade 1 or 2 degenerative spondylolisthesis, i.e. with slippage less than 50% of the depth of the underlying vertebral body. Lumbar stenosis complicating lumbar scoliosis defined by a deformation with rotation of the vertebral bodies on a frontal radiograph (absence of centering of the spinous process between the two pedicles of the vertebra concerned) and a Cobb angle greater than 20° or a rotational dislocation . \- Indication for spinal surgery by endoscopy Exclusion Criteria: * Patient under guardianship or curatorship, * Persons deprived of liberty by judicial or administrative decision, * Persons undergoing psychiatric treatment under duress requiring the consent of the legal representative * Persons unable to express their consent, * Persons under legal protection, * Patient not affiliated to a social protection scheme.