Abstract: A patient-specific surgical system, such as a patient-specific milling guide, is provided for preparing a bone to receive an orthopedic prosthesis.

Abstract: An orthopaedic cutting instrument and associated methods are presented.

Abstract: An expandable rod is provided that is sized for insertion into a patient's bone. A method for using the expandable rod to prepare the patient's bone to receive an orthopedic implant is also provided. The expandable rod is adjustable between a first, contracted state and a second, expanded state, the expansion member expanding radially outwardly from the contracted state to the expanded state.

Abstract: A modular prosthesis that may be implanted in a highly minimally invasive manner. Specifically, the modular prosthesis may include a neck and an anchor. Both the neck and the anchor are configured to be inserted and connected together through a lateral aspect of a long bone adjacent to the proximal end of the long bone. In one exemplary embodiment, the neck includes a body having a head end, configured for attachment to another prosthetic component, such as a corresponding articulating component, and an aperture extending therethrough. The anchor may be sized for receipt within the aperture formed in the neck. Additionally, the anchor may be configured such that the anchor engages the walls forming the aperture in the neck to secure the components together.

Abstract: An apparatus and method for threading a curved hole and inserting a threaded, flexible implant into the same. A threaded, flexible implant, which includes a flexible shaft and external thread, is provided to facilitate fixation in a curved, threaded hole. The threaded, flexible implant has a variable thread pitch from the concave to the convex surface thereof, and the curved, threaded hole has corresponding thread pitches.

Abstract: A calibration device for a milling instrument is provided. The calibration device may be a burr guard which may be attached to the milling instrument. The calibration device may calibrate the milling instrument to provide a predetermined depth of alteration to an anatomical structure.

Abstract: An apparatus and method are provided for aligning an extramedullary femoral cut guide by referencing the anterior cortex of a femur. An anterior cortex referencing extramedullary femoral cut guide is provided to guide an osteotomy device to prepare the femur to receive a prosthesis. An alignment gauge is included in the cut guide to determine proper and improper alignment of the cut guide with respect to the anterior cortex of the femur.

Abstract: An orthopedic system prepares a surface of an anatomical structure to receive an orthopedic prosthesis. A method for using the same is also disclosed. The orthopedic system includes a surgical instrument and a guide. The guide includes an anterior portion and a distal portion that is at least partially elevated relative to the anterior portion. The distal portion includes at least one track that is sized to receive the surgical instrument while preparing the surface of the anatomical structure.

Abstract: An adjustable cut guide and a method of using the adjustable cut guide are disclosed herein. The adjustable cut guide has a guide surface disposed between an actuation mechanism and a base of the adjustable cut guide. The adjustable cut guide also has an adjustment mechanism for adjusting the distance between the guide surface and the base. The actuation mechanism may comprise an adjustment member having an engaged position and a disengaged position. In the engaged position, the adjustment member traverses the guide surface. The adjustment member may include a drive end for mating with, and actuating, the adjustment mechanism when the adjustment member is in the engaged position.

Abstract: Various embodiments of femoral trochlea prostheses useable in a knee joint. The knee joint includes a patella and a distal femur with a femoral trochlea, or patello-femoral groove. In one embodiment, a femoral trochlea prosthesis includes a distal tail. In another embodiment, a femoral trochlea prosthesis includes a wing or extension portion. In yet another embodiment, a set of femoral trochlea prostheses includes a plurality of prostheses having differing thicknesses. In still another embodiment, a femoral trochlea prosthesis includes a porous medium on various portions of the prosthesis.

Abstract: Various embodiments of femoral trochlea prostheses useable in a knee joint. The knee joint includes a patella and a distal femur with a femoral trochlea, or patello-femoral groove. In one embodiment, a femoral trochlea prosthesis includes a distal tail. In another embodiment, a femoral trochlea prosthesis includes a wing or extension portion. In yet another embodiment, a set of femoral trochlea prostheses includes a plurality of prostheses having differing thicknesses. In still another embodiment, a femoral trochlea prosthesis includes a porous medium on various portions of the prosthesis.

Abstract: An orthopaedic cutting instrument and associated methods are presented.

Abstract: A computer assisted surgery (CAS) system and method for preparing an anatomical structure to receive an orthopaedic implant. The method generally involves the steps of determining a contour of the anatomical structure by using the CAS system to acquire a plurality of points on the anatomical structure and provide a best fit approximation of the anatomical structure based on the plurality of points, selecting an implant to replicate the anatomical structure, and preparing the anatomical structure to receive the implant.

Abstract: A modular prosthesis that may be implanted in a highly minimally invasive manner. Specifically, the modular prosthesis may include a neck and an anchor. Both the neck and the anchor are configured to be inserted and connected together through a lateral aspect of a long bone adjacent to the proximal end of the long bone. In one exemplary embodiment, the neck includes a body having a head end, configured for attachment to another prosthetic component, such as a corresponding articulating component, and an aperture extending therethrough. The anchor may be sized for receipt within the aperture formed in the neck. Additionally, the anchor may be configured such that the anchor engages the walls forming the aperture in the neck to secure the components together.

Abstract: A system for preparing a surface of an anatomical structure, such as a bone or cartilage, for example, to receive an orthopaedic implant. The system includes a surgical instrument for preparing the surface and a guide engageable with a follower of the surgical instrument. The guide includes a track or path configured to guide the follower and prepare a desired surface on the anatomical structure. The guide facilitates guidance of the surgical instrument in two dimensions.

Abstract: A calibration device for a milling instrument. The calibration device may be a burr guard which may be attached to the milling instrument. The calibration device may calibrate the milling instrument to provide a predetermined depth of alteration to an anatomical structure.