Surgery – Instruments – Orthopedic instrumentation
Patent
1992-10-20
1994-06-07
Brown, Michael A.
Surgery
Instruments
Orthopedic instrumentation
606 71, 606 73, A61B 1756
Patent
active
053185676
ABSTRACT:
A device for treating fractures of the odontoid apophysis of the second cervical vertebra (axis) by containing the osseous fragments. The device includes a plate shaped to be placed on the caudal fragment of the axis and serves as a support for the head of a screw. The plate additionally contains a barrel for guiding the screw which is threaded into the cranial fragment of the odontoid apophysis of the axis. The plate has a forked part extending on the caudal side of the axis and which part is attached to the anterior surface of the body of the third cervical vertebra. The invention prevents the head of the screw from penetrating into the caudal fragment of the axis and the self-tapping screw from brushing the fragile caudal fragment before forming a positive hold in the cortical cranial fragment.
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