Abstract: A bone cleaning assembly with cleaning elements that remove soft tissue from bone stock. The module also includes a clearing element that is periodically urged against the cleaning elements to remove bone stock trapped by the cleaning elements from the cleaning elements.

Abstract: A bone cleaning assembly (102, 602) with cleaning elements (690, 724, 1230, 1264) that remove soft tissue from bone stock. The module also includes a clearing element (778) that is periodically urged against the cleaning elements to remove bone stock trapped by the cleaning elements from the cleaning elements.

Abstract: A system for cleaning bone that includes a base unit with a motor, a cleaning head with a cleaning element and a mill head with a mill element. Both the cleaning head and the mill head are designed to be coupled to the base unit. Both the cleaning element and mill element have features that facilitate their coupling to the motor. When the cleaning head is attached to the base unit, a motor in the base unit rotates the cleaning element to remove soft tissue from the bone so as to clean the bone. The mill element is placed on the base unit and the cleaned bone placed in the mill head. The actuation of the base unit motor results in the actuations of the mill element. The actuation of the mill element converts the cleaned bone into bone chips.

Abstract: A bone cleaning assembly (102, 602) with cleaning elements (690, 724, 1230, 1264) that remove soft tissue from bone stock. The module also includes a clearing element (778) that is periodically urged against the cleaning elements to remove bone stock trapped by the cleaning elements from the cleaning elements.

Abstract: A bone cleaning assembly (102, 602) with cleaning elements (690, 724, 1230, 1264) that remove soft tissue bone stock. The module also includes a clearing element (778) that is periodically urged against the cleaning elements to remove bone stock trapped by the cleaning elements from the cleaning elements.

Abstract: A bone cleaning assembly (102, 602) with cleaning elements (690, 724, 1230, 1264) that remove soft tissue bone stock. The module also includes a clearing element (778) that is periodically urged against the cleaning elements to remove bone stock trapped by the cleaning elements from the cleaning elements.

Abstract: A system for cleaning bone that includes a base unit with a motor, a cleaning head (56) with a brush (58) and mill head with a mill element. Both the cleaning head and the mill head are designed to be coupled to the base unit. Both the brush and mill element have features that facilitate their coupling to the motor. When the cleaning head is attached to the base unit, a motor in the base unit rotates the brush to clean the bone. When the mill head is attached to the vase unit, the base unit motor actuates the mill element to convert the cleaned bone into bone chips.

Abstract: A system for cleaning bone that includes a base unit with a motor, a cleaning head (56) with a brush (58) and mill head with a mill element. Both the cleaning head and the mill head are designed to be coupled to the base unit. Both the brush and mill element have features that facilitate their coupling to the motor. When the cleaning head is attached to the base unit, a motor in the base unit rotates the brush to clean the bone. When the mill head is attached to the vase unit, the base unit motor actuates the mill element to convert the cleaned bone into bone chips.

Abstract: Bone (e.g., spinal) fixation assemblies are provided that resist back out of associated bone anchors (e.g., screws). The bone fixation plate may house a bone anchor retaining member that permits partial passage of the bone anchor and subsequently resists back out of the bone anchor from the member and the bone fixation plate. In some embodiments, the bone fixation plate may include an attachable cover member that prevents the bone anchor retaining member from ejecting from the plate. In other embodiments, ejection of the anchor retaining member from the bone fixation plate may be prevented by walls integral to the plate.

Abstract: An improved spinal implant includes vertically offset keels for mechanically interlocking respectively with overlying and underlying vertebral bone structures when implanted therebetween. At least one upper keel projects upwardly for close-fit reception into a prepared slot formed in the overlying vertebral structure, and at least one lower keel projects downwardly for similar close-fit reception into a prepared slot formed in the underlying vertebral structure. The upper and lower keels are misaligned or offset from each other to preclude creation of a common stress line extending therethrough, thereby significantly reducing risk of vertebral fracture.

Abstract: A spinal implant prosthesis includes a pair of end plates for affixation to adjacent vertebral bone structures and respectively defining inter-engaged convex and concave articulatory surfaces of elliptical profile. These elliptical articulatory surfaces are elongated in an anterior-posterior direction, and are comparatively shorter in a medial-lateral direction. With this configuration, in response to angular displacement and/or axial rotation, the elliptical surfaces displace in a manner increasing the distance between the adjacent vertebral bone structures, thereby tensioning the prosthesis and producing counteracting forces which urge the components back toward a substantially centered or neutral position. In addition, in the preferred form, the anterior-posterior length of the concave articulatory surface in incrementally greater than the anterior-posterior length of the convex articulatory surface to accommodate a limited range of anterior-posterior translation.

Abstract: An improved knee prosthesis includes a ceramic tibial component for articulation with natural or prosthetic (re-surfaced) femoral surfaces. The ceramic tibial component is provided in the form of a ceramic monoblock adapted for fixation relative to the patient's tibial bone, or alternately in the form of a ceramic bearing insert component carried by a tibial baseplate member which is adapted in turn for fixation relative to tibial bone. In either form, the ceramic tibial component includes at least one upwardly concave articulation surface for movable bearing engagement by a generally convex or condylar shaped femoral articulation surface. The ceramic tibial component provides improved wear characteristics with extended service life.