Abstract: An implant including a substantially cohesive aggregate comprising bone-derived particles. Cohesiveness is maintained by a member of mechanical interlocking, engagement of adjacent bone-derived particles with one another through engagement with a binding agent, thermal bonding, chemical bonding, or a matrix material in which the bone-derived particles are retained. The aggregate is shaped as a one-dimensional or two-dimensional body.

Abstract: A bone fastener for stabilizing bone fragments includes a single or multiple components coupleable with one another and displaceable to a locked position of the bone fastener.

Abstract: A bone fastener for stabilizing bone fragments includes a single or multiple components coupleable with one another and displaceable to a locked position of the bone fastener.

Abstract: A bone fastener for stabilizing bone fragments includes a single or multiple components coupleable with one another and displaceable to a locked position of the bone fastener.

Abstract: An implant including a substantially cohesive aggregate comprising bone-derived particles. Cohesiveness is maintained by a member of mechanical interlocking, engagement of adjacent bone-derived particles with one another through engagement with a binding agent, thermal bonding, chemical bonding, or a matrix material in which the bone-derived particles are retained. The aggregate is shaped as a one-dimensional or two-dimensional body.

Abstract: A bone fastener for stabilizing bone fragments includes a single or multiple components coupleable with one another and displaceable to a locked position of the bone fastener.

Abstract: The present invention relates to a spinal implant that allows restoration of movement to an effected vertebral joint. The spinal implant of the current invention also allows the adjustment of the height of the implant so that it can be best fit into the affected joint of an individual patient. One embodiment of the current invention provides an implant having two endplates separated from each other and a central adjuster between the two endplates, wherein the central adjuster is configured to adjust the height of the implant and to articulate with at least one of the two endplates.

Abstract: The present invention relates to a modular joint prosthesis for replacement of an affected joints and, particularly, an affected shoulder joint. The joint prosthesis of the current invention comprises a head having multiple components which can be assembled with each other in-situ during the course of a surgery. Consequently, the patient implanted with the modular joint prosthesis would experience minimized incision, accelerated recovery, and decreased scarring.

Abstract: There is provided a combined two-part intervertebral implant (10) configured to restore the spacing between adjacent vertebrae. The implant (10) generally includes a spacer ring (12) having upper and lower vertebral engaging surfaces and a bore for receipt of a locking element (14). The implant (10) further includes a locking element (14) which is engageable within the spacer ring (12) and has a diameter or height greater than the thickness of the spacer ring. In one embodiment, the spacer ring (12) may be formed as a C-shaped element (16). In an alternative embodiment, the spacer ring may be formed as an intact ring (42) having a side bore (44) for receipt of the locking element. One or both parts of the implant (10) may be partially or wholly surface demineralized to provide a flexible surface on implant. A method of using the spacer ring (12) and locking element (14) to secure the assembled implant between adjacent vertebrae is also disclosed.

Abstract: There is provided a combined two-part intervertebral implant configured to restore the spacing between adjacent vertebrae. The implant generally includes a spacer ring having upper and lower vertebral engaging surfaces and a bore for receipt of a locking element. The implant further includes a locking element which is engagable within the spacer ring and has a diameter or height greater than the thickness of the spacer ring. In one embodiment, the spacer ring may be formed as a C-shaped element. In an alternative embodiment, the spacer ring may be formed as an intact ring having a side bore for receipt of the locking element. One or both parts of the implant may be partially or wholly surface demineralized to provide a flexible surface on implant. A method of using the spacer ring and locking element to secure the assembled implant between adjacent vertebrae is also disclosed.

Abstract: The system and instrumentation of this invention provides a torque wrench adapter for the femoral rasp and for the hip stem implant. Each adapter includes a shaft for connecting a motion indicator thereon. The motion indicator includes a port for accepting the shaft of either the rasp adapter or the implant adapter and an indicator needle which is linked through spring mechanisms to shiftable leg. In use, the leg is anchored at one end to the femur such that the leg moves with the femur and relative to the indicator housing which causes a deflection in the indicator needle to apprise the surgeon of small movement of either the rasp or the implant relative to the femur.

Abstract: A prosthetic hip stem implant and torque wrench adapter. The hip stem includes an extraction bore formed through its body and a plurality of recessions formed in the body upper surface. A lip extends outwardly of the body and including alignment indicia for visually aligning the implant during seating. The torque wrench adapter includes a movable arm which is accommodated in the extraction bore of the implant. A pair of protrusions extending downwardly from the adaptor head to engage the implants' recesses. An adjustment screw shifts the arm toward the protrusions to clamp the adapter to the implant.

Abstract: A prosthetic implant for insertion into a cement filled intramedullary canal including a plurality of spacers formed from PMMA. The spacers include a body having a frontal portion and a trailing portion. The body of the spacers narrowing with distance from said frontal portion toward said trailing portion. The narrowing body of the spacers interrupting the flow of cement along the implant body as the body is inserted into a cement filled intramedullary canal. The narrowing trailing portion of the spacers cause the cement flow to smoothly re-attach to the implant body without creating substantial disturbances or vortexes in the cement.

Abstract: A prosthetic implant for insertion into a cement filled intramedullary canal including a plurality of spacers formed from PMMA. The spacers include a body having a frontal portion and a trailing portion. The body of the spacers narrowing with distance from said frontal portion toward said trailing portion. The narrowing body of the spacers interrupting the flow of cement along the implant body as the body is inserted into a cement filled intramedullary canal. The narrowing trailing portion of the spacers cause the cement flow to smoothly re-attach to the implant body without creating substantial disturbances or vortexes in the cement.

Abstract: A joint prosthesis is provided wherein an outer shell includes a liner to define an articulating interface with a head of a hip stem. A lock ring cooperates with the outer shell and the liner to oppose withdrawal of the head from the liner, and the lock ring is carried by the outer shell to permit insertion of the head during assembly.