Apparatus for subcutaneous suprafascial pedicular internal fixat

Details Apparatus for subcutaneous suprafascial pedicular internal fixat Apparatus for subcutaneous suprafascial pedicular internal fixat

1995-05-09

1996-10-29

Isabella, David

Surgery

Instruments

Orthopedic instrumentation

623 17, 606 73, A61F 504

Patent

active

055692486

ABSTRACT:
A system and method for internal fixation of vertbra of the spine to facilitate graft fusion is disclosed which minimizes the degee of trauma and the amount of surgical invasion. In one aspect the system includes fixation hardware which 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 feature of the hardware, the fixation plates, engagement nuts and linking members are supported suprafascially but subcutaneously so that the fascia and muscle tissue are not damaged, by a bone screw which includes an elongated smooth shank intermediate bone engaging threads and machine threads that is configured to support the fixation hardware above the fascia.

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Paul R. Harrington, M.D., Spine Instrumentation, Feb. 1973.
M. Asher, M.D.; Walter E. Strippgen; C. Heinig, M.D.; W. Carson, Ph.D; ISOLA Spinal Implant System Principles And Practice.

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