Method for subcutaneous suprafascial pedicular internal fixation

Details Method for subcutaneous suprafascial pedicular internal fixation Method for subcutaneous suprafascial pedicular internal fixation

1993-01-04

1994-10-25

Green, Randall L.

Surgery

Miscellaneous

Methods

128897, 623 17, 623 66, A61B 1900, A61F 244, A61F 254

Patent

active

053579836

ABSTRACT:
A method for internal fixation of vertebra of the spine to facilitate graft fusion includes steps for excising the nucleus of an affected disc, preparing a bone graft, instrumenting the vertebrae for fixation, and introducing the bone graft into the resected nuclear space. Disc resection is conducted through two portals through the annulus, with one portal supporting resection instruments and the other supporting a viewing device. The fixation hardware is inserted through small incisions aligned with each pedicle to be instrumented. The hardware includes bone screws, fixation plates, engagement nuts, and linking members. In an important aspect of the method, the fixation plates, engagement nuts and linking members are supported suprafascially but subcutaneously so that the fascia and muscle tissue are not damaged. The bone screw is configured to support the fixation hardware above the fascia. In a further aspect of the invention, a three component dilator system is provided for use during the bone screw implantation steps of the method.

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Spine Instrumentation-Harrington; by Paul R. Harrington, MD. (all).
ISOLA Spinal Implant System-Principles and Practice; Marc. A. Asher, MD. Walter E. Strippgen, Charles F. Heinig, MD., William L. Carson PhD (brochure-all).

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