Apparatus and methods for treating back pain of a patient by denervation of an intervertebral disc or a region of the posterior longitudinal ligament by the controlled application of heat to a target tissue. In one embodiment, the invention may include a procedure combining both decompression of a disc,...http://www.google.fr/patents/US7331956?utm_source=gb-gplus-shareBrevet US7331956 - Methods and apparatus for treating back pain