A method for the treatment of spinal stenosis that includes cutting off a muscle origin or insertion from a spinous process, cutting off the spinous process at the transition to the lamina arcus vertebrae, resecting at least a part of the lamina arcus vertebrae and thereby decompression of the spinal cord within the foramen vertebral, performing osteosynthesis of the spinous process and placing a suture anchor within the spinous process and reattaching the muscle origin or insertion to the spinous process.