Abstract: A patient-specific registration jig for registering an orthopaedic surgical instrument with a bony anatomy of a patient includes a head and an adaptor coupled to the head. The head includes a patient-specific contact surface configured to contact a portion of the patient's bony anatomy such that the head can be coupled to the patient's bony anatomy in a unique position. The adaptor includes an elongated shank having a first end coupled to the head and a second end and an adaptor end attached to the second end of the elongated shank. The adaptor end is configured to be received by a clutch of the orthopaedic surgical instrument. A method for registering the orthopaedic surgical instrument using the patient-specific registration jig is also disclosed.

Abstract: An orthopaedic surgical instrument configured to assist a surgeon seat or engage a femoral component with a tibial bearing or other tibial component. The instrument may include a displacement device configured to displace the tibia and femur to permit the surgeon to position a femoral component for seating on a tibial bearing and/or a retaining mechanism configured to maintain the tibial bearing in rotational alignment with the femoral component while seating the femoral component on the tibial bearing.

Abstract: A kit includes an orthopaedic implant stem, and a reamer assembly for reaming a proximal portion of a cavity, said reamer assembly cooperating with a proximal portion of the orthopaedic implant stem, said reamer assembly comprising, a sleeve defining an inner periphery, said sleeve configured to fit over the proximal portion of the orthopaedic implant stem, said sleeve defining an outer periphery, and a reamer including a body defining a cavity formed therein for receiving at least a portion of the outer periphery of said sleeve, a plurality of cutting edges extending outwardly from said body, said cutting edges adapted for cooperation with bone, and a stem extending from an end of the body, wherein the sleeve comprises a locking feature and the stem comprises a connection feature to removably secure the sleeve to the proximal portion of the orthopaedic implant stem when assembled together.

Abstract: A method for providing joint arthroplasty includes resecting an end portion of a long bone, preparing a central longitudinal opening in a medullary canal of the long bone, providing a prosthetic stem component, installing the prosthetic stem component into the opening in a medullary canal, providing a reamer including an opening for receiving the prosthetic stem component, positioning the reamer onto the prosthetic stem component with the opening of the reamer positioned at least partially over the prosthetic stem component, reaming a portion of the long bone with the reamer, removing the reamer, and installing a prosthetic body component onto the prosthetic stem component.

Abstract: A reamer for reaming a proximal portion of a cavity for use in implanting a joint prosthesis is provided. The reamer is used for cooperation with a proximal portion of an orthopaedic implant component. The reamer includes a body defining a cavity formed therein for receiving at least a portion of the orthopaedic implant component. The reamer also includes a plurality of cutting edges extending outwardly from the body. The edges are adapted for cooperation with bone. The reamer also includes a stem extending from an end of the body.

Abstract: A device for creating a cavity in a bone, said cavity having a cross-section which has a generally triangular profile having a first side generally parallel with an axis of the bone and a second side forming an acute angle with the first side, and contiguous with a pre-existing conical cavity, includes a shaft having a longitudinal axis and including a proximal portion and a distal portion, wherein the proximal portion has a larger cross section perpendicular to the longitudinal axis than the corresponding cross section of the distal portion, and a broach non-rotationally supported by the shaft and having a first cutting side supported at the acute angle relative to the longitudinal axis of the shaft, wherein the distal portion of the shaft is formed to include witness marks which when registered with an indicator after advancing the shaft facilitate selection of an appropriately sized prosthesis component.

Abstract: An acetabular shell for use in a hip prosthesis is provided. The shell includes a body having an inner periphery and a convex outer periphery and defining a cavity of the body. The outer periphery has a first portion defining a hemisphere and a second portion extending from the equator of the first portion in a converging direction. The second portion forms a rim opposed to the equator. The cavity is positioned within the rim.

Abstract: A broaching system is disclosed for creating a cavity in a bone. The cavity has a cross section which has a generally triangular profile having a first side generally parallel with an axis of the bone and a second side forming an acute angle with the first side. The cavity is contiguous with a pre-existing conical cavity in the bone. The apparatus comprises as shaft and a broach. The shaft has a longitudinal axis. The broach is mounted to the shaft and has a first cutting side mounted at the acute angle relative to the longitudinal axis of the shaft. The first cutting side is formed to include teeth. The shaft and broach are configured so that when the longitudinal axis of the shaft is advanced into the bone along the axis of the bone, the teeth of the broach form the triangular cavity. A method for cutting a triangular cavity in bone is also described. The method comprises a providing a shaft step, an incising step and a cutting step.

Abstract: A broaching system is disclosed for creating a cavity in a bone such that the cavity has a cross section which has a generally triangular profile having a first side generally parallel with an axis of the bone and a second side forming an acute angle with the first side and such that the cavity is contiguous with a pre-existing conical cavity in the bone. The apparatus comprises a shaft and a broach. The shaft has a longitudinal axis. The broach is mounted to the shaft and has a first cutting side mounted at the acute angle relative to the longitudinal axis of the shaft. The first cutting side is formed to include teeth. The shaft and broach are configured so that when the longitudinal axis of the shaft is advanced into the bone along the axis of the bone, the teeth of the broach form the triangular cavity. A method for cutting a triangular cavity in bone is also described. The method comprises a providing a shaft step, an incising step and a cutting step.

Abstract: A prosthetic implant for securing to bone to form an articulating joint is provided. The implant is prepared by a process which includes the steps of preparing a porous surface on a component to form a prosthetic implant, placing the prosthetic implant including the porous surface in a fixture closely conforming to the porous surface of the implant and having an inlet and an opposed outlet, and directing a biological compound including stem cells into the inlet, through the porous surface of the implant and out of the outlet to form a prosthetic implant having a porous surface coated with a portion of the biological compound.

Abstract: A reamer for reaming a proximal portion of a cavity for use in implanting a joint prosthesis is provided. The reamer is used for cooperation with a proximal portion of an orthopaedic implant component. The reamer includes a body defining a cavity formed therein for receiving at least a portion of the orthopaedic implant component. The reamer also includes a plurality of cutting edges extending outwardly from the body. The edges are adapted for cooperation with bone. The reamer also includes a stem extending from an end of the body.

Abstract: An acetabular shell for use in a hip prosthesis is provided. The shell includes a body having an inner periphery and a convex outer periphery and defining a cavity of the body. The outer periphery has a first portion defining a hemisphere and a second portion extending from the equator of the first portion in a converging direction. The second portion forms a rim opposed to the equator. The cavity is positioned within the rim.

Abstract: A broaching system is disclosed for creating a cavity in a bone. The cavity has a cross section which has a generally triangular profile having a first side generally parallel with an axis of the bone and a second side forming an acute angle with the first side. The cavity is contiguous with a pre-existing conical cavity in the bone. The apparatus comprises as shaft and a broach. The shaft has a longitudinal axis. The broach is mounted to the shaft and has a first cutting side mounted at the acute angle relative to the longitudinal axis of the shaft. The first cutting side is formed to include teeth. The shaft and broach are configured so that when the longitudinal axis of the shaft is advanced into the bone along the axis of the bone, the teeth of the broach form the triangular cavity. A method for cutting a triangular cavity in bone is also described. The method comprises a providing a shaft step, an incising step and a cutting step.