Patent attributes
Apparatus and method for minimally invasive spinal surgery employs an elongated flexible guide element inserted so as to pass in through a first lateral posterior incision, through the spinal column anterior to the spinal cord, and out through a second lateral posterior incision contralateral to said first incision. The guide element is used to guide various elements to a desired position within the spinal column as part of the surgical procedure. Preferably, two hollow rigid tubes rigidly coupled outside the body in converging relation are used to define a working gap within the spinal column through which the guide element passes. This provides a platform for manipulation of tissues and introduction of implants anterior to the spinal cord. Procedures described include reinforcement of a degenerative intervertebral disc and restoration of a damaged vertebral body.
