Abstract: A method of positioning a femoral cutting guide on a distal end of a femur establishes at least a first reference plane to perform a distal femoral planar cut. The method includes inserting a mounting member into an intramedullary canal of the femur and coupling a bridge member to the mounting member. The method also includes placing a cutting guide member over a medial anterior portion of the distal femur. The cutting guide member has a first channel that establishes the first reference plane. The bridge member has a bridge channel. A wall of the bridge channel is inserted into the first channel of the cutting guide member. A mounting mechanism generates resistance between the bridge member and the cutting guide member. The resistance is overcome by positioning the cutting guide member relative to the femur.

Abstract: A joint spacer for an orthopedic procedure including a first plate, a second plate, a coupling device, and a spacer insert receiving portion. The first plate includes a first bone facing surface and a first inner surface. The second plate includes a second bone facing surface and a second inner surface facing the first inner surface. The coupling device couples the first plate and the second plate together. The spacer insert receiving portion of at least one of the first inner surface or the second inner surface is configured to receive at least one spacer insert between the first plate and the second plate to space the first plate and the second plate apart a distance corresponding to an optimal interval between bones of a joint.

Abstract: An instrument for engaging a bearing configured to facilitate articulation of a femoral component and a tibial component. The instrument includes a first bearing engaging portion configured to engage a first end of the bearing, and a second bearing engaging portion configured to engage a second end of the bearing that is opposite to the first end. A coupling member of the instrument interconnects the first and the second bearing engaging portions. The coupling member is operable to move the second bearing engaging portion relative to the first bearing engaging portion to secure the bearing therebetween.

Abstract: A method for preparing a femur and a tibia for receipt of a partial knee prosthesis. The method includes the following: positioning a femoral engagement member of a femoral drill guide proximate to the femur; positioning a tibial engagement member of the femoral drill guide proximate to the tibia; moving an adjuster associated with the femoral drill guide to translate at least one of the femoral engagement member or the tibial engagement member against the femur or tibia respectively to widen a joint space defined between the femur and the tibia; drilling holes in the femur using the femoral drill guide as a reference; coupling a tibial cut guide to the femoral drill guide; making a first cut in the tibia by referencing the femoral drill guide; and making a second cut in the tibia by referencing the tibial cut guide.

Abstract: A method of positioning a femoral prosthesis relative to a femur. The method includes forming a first curved surface on a first condyle of the femur, and securing the femoral prosthesis to the femur such that a first curved bone-engaging surface of the femoral prosthesis mates with the first curved surface formed on the femur.

Abstract: A method of implanting a prosthesis based on bone density of a bone is provided. A first bone density of the bone may be determined at a first portion of the bone. A second bone density of the bone may be determined at a second portion of the bone. A first desired amount of bone removal may be determined at the first portion of the bone based on the first bone density. A second desired amount of bone removal may be determined at the second portion of the bone based on the second bone density. The desired amounts of bone may be removed from the first and second portions of the bone. A prosthesis may be selected and implanted.

Abstract: A method for preparing a first bone for receiving a prosthesis. The method includes coupling a revision alignment member to a template; positioning an offset alignment bushing relative to the revision alignment member; positioning the offset alignment bushing at the first bone such that an intramedullary member seated in the first bone extends through a passage defined by the offset alignment bushing; replacing the offset alignment bushing with a first bone cutting bushing; cutting the first bone using the first bone cutting bushing as a guide; replacing the first bone cutting bushing with an offset second bone cutting bushing; providing the second bone cutting bushing with a rotational orientation corresponding to a rotational orientation of the offset alignment bushing; and cutting the first bone using the offset second bone cutting bushing as a guide to prepare the bone to receive an offset prosthesis adapter.

Abstract: A set of instruments for preparing a femur and tibia for receipt of a partial knee prosthesis can include a femoral drill guide that is selectively connected to an intramedullary (IM) rod. At least one sizing spoon can communicate with the femoral drill guide. The femoral drill guide can have terminal cutting surfaces. A tibial cut guide can be selectively connected to the femoral drill guide. A dial member can be disposed on one of the femoral or tibial cut guides that when rotated moves at least one of the spoons in a superior/inferior direction.

Abstract: A method for preparing at least a first bone for receiving a prosthesis can include positioning an IM member in a bone. A scaffold, skeleton or frame can be located onto the bone at a desired location. An alignment assembly can be coupled to the frame. The alignment assembly can be moved relative to the IM member to position the frame at a desired location relative to the bone. The frame can be fixed to the bone at the desired location. A cavity can be reamed into the bone using at least a portion of the alignment assembly as a guide. The alignment assembly can be removed from the frame. A cutting block can be coupled to the first attachment portion. Cuts can be prepared in the bone using the cutting block as a guide.

Abstract: A method of positioning a femoral cutting guide on a distal end of a femur establishes at least a first reference plane to perform a distal femoral planar cut. The method includes inserting a mounting member into an intramedullary canal of the femur and coupling a bridge member to the mounting member. The method also includes placing a cutting guide member over a medial anterior portion of the distal femur. The cutting guide member has a first channel that establishes the first reference plane. The bridge member has a bridge channel. A wall of the bridge channel is inserted into the first channel of the cutting guide member. A mounting mechanism generates resistance between the bridge member and the cutting guide member. The resistance is overcome by positioning the cutting guide member relative to the femur.

Abstract: A method and apparatus for positioning an implant system in anatomy is disclosed. The apparatus can include an alignment member operable to contact an implant portion, a bone, or other appropriate portion. The method can include using the apparatus to assist in positioning a single or multi-piece implant member. Also, a method of aligning a first implant position relative to another implant position is disclosed.

Abstract: A set of instruments for preparing a femur and tibia for receipt of a partial knee prosthesis can include a femoral drill guide that is selectively connected to an intramedullary (IM) rod. At least one sizing spoon can communicate with the femoral drill guide. The femoral drill guide can have terminal cutting surfaces. A tibial cut guide can be selectively connected to the femoral drill guide. A dial member can be disposed on one of the femoral or tibial cut guides that when rotated moves at least one of the spoons in a superior/inferior direction.

Abstract: A system for cooperating with an elongated IM member during preparation of a bone for receiving a prosthesis can include a scaffold, skeleton or frame. An alignment assembly can be selectively coupled to the frame. The alignment assembly can cooperate with the IM member to position the frame relative to the bone. A cutting block can be selectively coupled to the frame. According to other features, a posterior stabilized (PS) box guide assembly can have a PS box guide attachment portion that selectively couples with the first attachment portion of the frame. A posterior foot can selectively couple with a second attachment portion on the frame. The posterior foot can be positioned to occupy space of a joint line in an installed position.

Abstract: A modular knee prosthesis can include a femoral component having a superiorly extending portion, a first femoral bearing surface and a second femoral bearing surface. The superiorly extending portion can define a first tapered augment receiving surface. A tibial component can have an inferiorly extending portion and a tibial bearing surface. The inferiorly extending portion can define a second tapered augment receiving surface. A first augment can define a first receiving bore and a first stepped surface. A second augment can define a second receiving bore and a second stepped surface. The first and second augments are adapted to mate at the first and second stepped surfaces in a first position at the first tapered augment receiving surface of the femoral component and in a second position at the second tapered augment receiving surface of the tibial component.

Abstract: A method of positioning a femoral cutting guide on a distal end of a femur establishes at least a first reference plane to perform a distal femoral planar cut. The method includes inserting a mounting member into an intramedullary canal of the femur and coupling a bridge member to the mounting member. The method also includes placing a cutting guide member over a medial anterior portion of the distal femur. The cutting guide member has a first channel that establishes the first reference plane. The bridge member has a bridge channel. A wall of the bridge channel is inserted into the first channel of the cutting guide member. A mounting mechanism generates resistance between the bridge member and the cutting guide member. The resistance is overcome by positioning the cutting guide member relative to the femur.

Abstract: A punch assembly for preparing a tibia bone for a prosthesis includes a static component configured to be supported by the tibia bone and a dynamic component that includes a punch having a stem. The dynamic component is supported for movement relative to the static component along a generally arcuate path to prepare an aperture having an arcuate contour in the tibia bone. A method of preparing a tibial aperture for is also disclosed.

Abstract: A system locates a femoral cutting guide on a distal end of a femur. The femoral cutting guide establishes at least a first reference plane to perform a distal femoral planar cut. The system generally includes a mounting rod operable to insert into the distal end of the femur. An index member is operable to abut the distal end of the femur. A bridge member extends from the index member. A cutting guide member extends from the bridge member. The cutting guide member includes a first channel that establishes the first reference plane. A mounting mechanism releasably couples the cutting guide member to the bridge member. The mounting mechanism is operable to generate a sliding resistance between the bridge member and the cutting guide member that is generally overcome to position the cutting guide member relative to the femur.

Abstract: An endoprosthetic device includes a monolithic meniscal implant having a three-dimensional patient-specific tibial engagement surface nesting in and complementary to a proximal surface of the proximal tibia of a patient and a femoral articulating surface opposite to the tibial engagement surface for articulating with a femoral condyle of the patient. The meniscal implant includes a first portion and a second remainder portion, wherein the first portion is compressible relative to the second remainder portion.

Abstract: A prosthesis for replacing a selected portion of the anatomy is disclosed. Also disclosed is an exemplary method and apparatus for performing a procedure. The procedure can be minimally or less invasive.

Abstract: A prosthesis for replacing a selected portion of the anatomy is disclosed. Also disclosed is an exemplary method and apparatus for performing a procedure. The procedure can be minimally or less invasive.