An exemplary method for constraining spinous processes to elastically limit flexion of a spinal segment comprises piercing an interspinous ligament to form a first penetration above an upper side of an upper spinous process and advancing a first end of a first tether through the first penetration. The...http://www.google.es/patents/US20080262549?utm_source=gb-gplus-sharePatente US20080262549 - METHODS AND SYSTEMS FOR DEPLOYING SPINOUS PROCESS CONSTRAINTS
METHODS AND SYSTEMS FOR DEPLOYING SPINOUS PROCESS CONSTRAINTS