Abstract: An acetabular shell component includes a solid substrate, a porous outer layer coupled to the solid substrate, a porous inner layer coupled to the solid substrate, and an inner bearing coupled to the porous inner layer. One or more adjuncts extend outward from the porous outer layer. Each adjunct includes an outer surface that defines a customized patient-specific negative contour shaped to conform to a positive contour of a patient's bone. A method for manufacturing the acetabular shell component using an additive manufacturing process is also disclosed.

Abstract: A system for use during an orthopaedic surgical procedure includes a femoral broach, an acetabular cup component, and an acetabular alignment guide. The femoral broach includes a mounting post positioned at a superior end of an elongated body. The cup component includes a distal rim and a curved surface extending inwardly from the rim to define a cavity. The alignment guide includes a distal end configured to be coupled to the mounting post and a proximal end configured to be coupled to the distal rim. When coupled to the femoral broach, the guide instrument is sized to orient the acetabular cup component relative to the femoral broach. The acetabular cup component may be a prosthetic cup component or a trial instrument corresponding to the prosthetic cup component.

Abstract: A surgical instrument system includes a commonly-sized orthopaedic surgical instrument assembly for use in implanting a femoral component, along with a number of orthopaedic surgical instrument assemblies having varying sizes of instruments of use in implanting a tibial tray component and a patella component.

Abstract: A method, apparatus, and system for balancing a patient's knee joint during an orthopaedic surgical procedure includes measuring a conductance of a medial collateral ligament and a lateral collateral ligament of the patient's knee joint and balancing the tension of the medial and lateral collateral ligaments based on the measured conductance. The tension of the medial and lateral collateral ligaments may be balanced by reducing a difference between the measured conductance.

Abstract: A system for use during an orthopaedic surgical procedure includes a femoral broach, an acetabular cup component, and an acetabular alignment guide. The femoral broach includes a mounting post positioned at a superior end of an elongated body. The cup component includes a distal rim and a curved surface extending inwardly from the rim to define a cavity. The alignment guide includes a distal end configured to be coupled to the mounting post and a proximal end configured to be coupled to the distal rim. When coupled to the femoral broach, the guide instrument is sized to orient the acetabular cup component relative to the femoral broach. The acetabular cup component may be a prosthetic cup component or a trial instrument corresponding to the prosthetic cup component.

Abstract: A kit includes a number of femoral prostheses of different sizes and shapes. Each femoral prostheses in the kit includes a femoral stem including a proximal end portion defining a proximal stem axis, a femoral neck portion including a lateral shoulder extending distally and laterally at an angle relative to the proximal stem axis, such that when projected onto a coronal plane including the proximal stem axis, the lateral shoulder is not parallel to the proximal stem axis. Each prostheses further includes an insertion/extraction cavity extending distally from a proximal surface of the neck portion, the cavity defining an insertion/extraction cavity axis which, when projected on to the coronal plane, is not parallel with the proximal stem axis, and the lateral shoulder of each femoral prosthesis is oriented at an angle relative to the proximal stem axis that is different from the angle of each of the other femoral prostheses.

Abstract: An orthopaedic surgical instrument system including a reamer assembly is disclosed. The reamer assembly includes a reamer head having a plurality of cutting teeth and a mounting bracket configured to be coupled to a femoral broach, which is sized to be positioned in a proximal opening of a femoral canal of a patient's femur. When the mounting bracket is coupled to the femoral broach, the reamer head is offset medially from the lateral edge of the femoral broach to resect a medial calcar of the patient femur.

Abstract: An orthopaedic surgical instrument system including a reamer assembly is disclosed. The reamer assembly includes a reamer head having a plurality of cutting teeth and a mounting bracket configured to be coupled to a femoral broach, which is sized to be positioned in a proximal opening of a femoral canal of a patient's femur. When the mounting bracket is coupled to the femoral broach, the reamer head is offset medially from the lateral edge of the femoral broach to resect a medial calcar of the patient femur.

Abstract: An instrument for preparing bone. The instrument includes a proximal broach having an outer surface and a canal extending through the length of the proximal broach. The instrument also includes a distal reamer coupled to the proximal broach such that distal reamer is adapted to rotate relative to the proximal broach.

Abstract: An orthopedic hip prosthesis system is disclosed. The orthopedic hip prosthesis system comprises a femoral head component configured to articulate with a natural or prosthetic acetabulum of a patient, the femoral head component having a tapered bore formed therein, a femoral stem component having a tapered trunnion configured to be received in the tapered bore of the femoral head component, and a shell positioned over the tapered trunnion of the femoral stem component. The shell includes a frame extending over the tapered trunnion, and a protective coating applied to the frame and the tapered trunnion. A method of performing an orthopedic surgery is also disclosed.

Abstract: A kit includes a number of femoral prostheses of different sizes and shapes. Each femoral prostheses in the kit includes a femoral stem including a proximal end portion defining a proximal stem axis, a femoral neck portion including a lateral shoulder extending distally and laterally at an angle relative to the proximal stem axis, such that when projected onto a coronal plane including the proximal stem axis, the lateral shoulder is not parallel to the proximal stem axis. Each prostheses further includes an insertion/extraction cavity extending distally from a proximal surface of the neck portion, the cavity defining an insertion/extraction cavity axis which, when projected on to the coronal plane, is not parallel with the proximal stem axis, and the lateral shoulder of each femoral prosthesis is oriented at an angle relative to the proximal stem axis that is different from the angle of each of the other femoral prostheses.

Abstract: A method of inserting a femoral prosthesis includes coupling an insertion/extraction instrument with an insertion/extraction cavity of a femoral component using a threaded member, the insertion/extraction cavity defining a cavity axis which is not parallel with a longitudinal axis defined by a proximal stem portion of the femoral prosthesis, inserting a distal end portion of the femoral prosthesis into a femur, impacting a proximal end portion of the insertion/extraction instrument, and transferring an impact force from the proximal end portion to the femoral prosthesis through the threaded member.

Abstract: An orthopaedic hip prosthesis system is disclosed. The orthopaedic hip prosthesis system comprises a femoral head component configured to articulate with a natural or prosthetic acetabulum of a patient, the femoral head component having a tapered bore formed therein, a femoral stem component having a tapered trunnion configured to be received in the tapered bore of the femoral head component, and a shell positioned over the tapered trunnion of the femoral stem component. The shell includes a frame extending over the tapered trunnion, and a protective coating applied to the frame and the tapered trunnion. A method of performing an orthopaedic surgery is also disclosed.

Abstract: An orthopaedic hip prosthesis system is disclosed. The orthopaedic hip prosthesis system comprises a femoral head component configured to articulate with a natural or prosthetic acetabulum of a patient, the femoral head component having a tapered bore formed therein, a femoral stem component having a tapered trunnion configured to be received in the tapered bore of the femoral head component, and a shell positioned over the tapered trunnion of the femoral stem component. The shell includes a frame extending over the tapered trunnion, and a protective coating applied to the frame and the tapered trunnion. A method of performing an orthopaedic surgery is also disclosed.

Abstract: An orthopaedic hip prosthesis system is disclosed. The orthopaedic hip prosthesis system comprises a femoral head component configured to articulate with a natural or prosthetic acetabulum of a patient, the femoral head component having a tapered bore formed therein, a femoral stem component having a tapered trunnion configured to be received in the tapered bore of the femoral head component, and a shell positioned over the tapered trunnion of the femoral stem component. The shell includes a frame extending over the tapered trunnion, and a protective coating applied to the frame and the tapered trunnion. A method of performing an orthopaedic surgery is also disclosed.

Abstract: A method of inserting a femoral prosthesis includes coupling an insertion/extraction instrument with an insertion/extraction cavity of a femoral component using a threaded member, the insertion/extraction cavity defining a cavity axis which is not parallel with a longitudinal axis defined by a proximal stem portion of the femoral prosthesis, inserting a distal end portion of the femoral prosthesis into a femur, impacting a proximal end portion of the insertion/extraction instrument, and transferring an impact force from the proximal end portion to the femoral prosthesis through the threaded member.

Abstract: A disassembly tool for disassembly of a first component of a prosthesis to a second component of the prosthesis for use in joint arthroplasty. The tool includes a first member having a radial portion operably associated with the first component and adapted to exert a radial force on the first component. A second member operably associated with the second component is also included and the second member has a second member longitudinal axis. A drive mechanism is coupled to the second member, such that as the drive mechanism is activated, the second member exerts a force against the second component in the direction of the longitudinal axis. Such exertion of force against the second member further causes the second member to move relative to the first member along the second member longitudinal axis.

Abstract: A femoral prosthesis system is provided which includes femoral prosthesis and an instrument for inserting/extracting the femoral prosthesis. The femoral prosthesis includes a stem and a neck portion. The stem includes a proximal end portion which defines a proximal stem axis. The neck portion is located proximally of the proximal end portion. The neck portion includes a proximal surface and an insertion/extraction cavity which extends distally from the proximal surface. The insertion/extraction cavity is configured to couple with the insertion/extraction instrument. The insertion/extraction cavity defines an insertion/extraction cavity axis which, when projected onto a coronal plane including the proximal stem axis, is not parallel with the proximal stem axis. The insertion/extraction instrument includes a distal end portion configured to couple with the insertion/extraction cavity.

Abstract: A femoral prosthesis for use during performance of a hip replacement procedure includes a plurality of femoral stem components in a range of various sizes and a plurality of femoral head component in a range of various sizes. The anterior/posterior stem taper angle of the femoral stem component varies across its range of sizes.

Abstract: A femoral prosthesis system is provided which includes femoral prosthesis and an instrument for inserting/extracting the femoral prosthesis. The femoral prosthesis includes a stem and a neck portion. The stem includes a proximal end portion which defines a proximal stem axis. The neck portion is located proximally of the proximal end portion. The neck portion includes a proximal surface and an insertion/extraction cavity which extends distally from the proximal surface. The insertion/extraction cavity is configured to couple with the insertion/extraction instrument. The insertion/extraction cavity defines an insertion/extraction cavity axis which, when projected onto a coronal plane including the proximal stem axis, is not parallel with the proximal stem axis. The insertion/extraction instrument includes a distal end portion configured to couple with the insertion/extraction cavity.