Abstract: An avascular neucrosis instrument includes a drill guide member, an extension member attached to an end of the drill guide member, an indexing member attached to the drill guide member, and a flexible drill member extending along the drill guide member and exiting the drill guide member at an angle adjacent the extension member. In another embodiment, the extension is removed from the end of the drill guide member and another extension member is attached to an end of the flexible drill member. As a result, the flexible drill member can be used to form a plurality of channel arrays for the distribution of blood supply to a femoral head.

Abstract: An implant and method for use in reattaching a removed bone section following bone surgery by using a bone engaging clamp adapted to fit over the outer surface of the removed bone section and engage cables to attach the removed bone to the desired location. The bone engaging clamp is adapted to fit over at least a portion of the outer surface of the removed bone section and has an inner surface for engaging the bone section. Further, the bone engaging clamp has at least one through bore for holding a cable; and at least one associated screw for clamping a tensioned cable in a fixed position relative to the bone engaging clamp to hold the removed bone section securely in place at the point of reattachment.

Abstract: An implant for use in reattaching a bone section following bone surgery which includes a plate-like member for fitting over at least a portion of the outer surface of the bone section to be reattached. The plate has an inner surface for engaging the bone section and an outer surface facing away from the bone section and side walls extending between the inner and outer surface. The outer surface includes at least one cable holding portion for holding a cable in place. A rectangular body receives the ends of a cable and allows for gripping and holding the cable under tension. The rectangular body has opposing concave sides and a pair of openings parallel to the concave sides for receiving the end of the cable. The rectangular body is collapsible by a crimping tool which pinches the cable in the openings. A recess extends across the outer surface of the plate-like member for receiving the rectangular body with the recess intersecting the cable holding portions.

Abstract: A device for centralizing a prosthetic femoral stem within a prepared natural femur and plugging the femoral canal inculdes a first member having a shape generally similar to the shape of the femoral stem for temporary insertion within the natural femur, a rod member for slidable insertion through a bore in the first member, and a second member releasably connected to the distal end of the rod member for permanent insertion within the natural femur for aligning the distal end of the femoral stem and plugging the canal of the natural femur.