Abstract: An orthopedic device for a shoulder joint includes a patient-specific alignment guide. The alignment guide includes a cap having a three-dimensional engagement surface customized in a pre-operative plan by computer imaging to be complementary and closely mate and conform to a humeral head of a proximal humerus of a patient. The alignment guide includes a tubular element extending from the cap and defining a longitudinal guiding bore for guiding an alignment pin at a patient-specific position and orientation determined in the pre-operative plan, and an orientation feature on the cap. The orientation feature is designed to orient the cap relative to the humeral head when the orientation feature is aligned with a landmark of the proximal humerus.

Abstract: A system for compressing a fracture can include a first bone plate having a first proximal end and a first distal end, and a second bone plate having a second proximal end and a second distal end. The second bone plate can be spaced apart from the first bone plate. The system can include an expansion member coupled to the second proximal end of the second bone plate. The movement of the expansion member relative to the second bone plate can cause the first distal end of the first bone plate and the second distal end of the second bone plate to move toward each other to compress the fracture.

Abstract: A bone reamer is provided and may include a shaft and a cutting element. The shaft may include a proximal end, a distal end, and a flexible portion. The flexible portion may be disposed between the proximal and distal ends. The cutting element may be carried by the shaft and may include a cutting surface facing the distal end of the shaft. The distal end of the shaft may be offset from the cutting surface.

Abstract: A glenoid implant is provided and may include a body portion and a stem portion. The stem portion may extend from the body portion along a longitudinal axis. The body portion may include an articular side and a bone-engaging side opposite the articular side. At least a portion of the bone-engaging side may be disposed at a non-parallel angle relative to at least a peripheral edge of the articulation side.

Abstract: A patient-specific alignment guide includes a three-dimensional engagement surface customized in a pre-operating planning stage by computer imaging to closely mate and conform to a corresponding bone portion of a patient's elbow joint. The patient-specific alignment guide defines a first longitudinal guiding bore aligned with a reference axis associated with the elbow joint of patient when the alignment guide is mounted onto the corresponding bone portion.

Abstract: An orthopedic plate assembly for supporting a bone can include a y-shaped first plate and a second plate separate from the first plate. The first plate can be attached to the bone and have a center line. The first plate can include an elongate body attachable to a first portion of the bone and extending along the center line and first and second arms transversely extending from an end of the body. The first and second arms can define an aperture in the first plate. The second plate can be attached to the bone. The second plate can have a first end and a second end opposite the first end configured to be disposed on and engaged with the first arm and the second arm, respectively. The second plate can be configured to span the aperture transverse to the center line when engaged with the first and second arms.

Abstract: An elbow prosthesis includes a stem structure and an articulating component. The stem structure is operable to be positioned in a bone of a joint and includes a stem portion and a C-shaped body portion. The stem portion is operable to be positioned in the bone. The C-shaped body portion includes a first articulating surface bound by a medial wall and a lateral wall. The medial and lateral walls are separated by a first distance. The articulating component includes a second articulating surface positioned between a medial side surface and a lateral side surface. The medial and lateral side surfaces are separated by a second distance that is less than the first distance. The second articulating surface is configured to slidably communicate in a medial/lateral direction along the first articulating surface of the C-shaped body portion.

Abstract: A method for replacing a proximal interphalangeal joint with a modular implant assembly is provided. During a first surgical procedure, a first stem component of the implant assembly having a first articulation component removably attached thereto is implanted in a proximal phalanx bone. A second stem component of the implant assembly having a second articulation component removably attached thereto is implanted in a middle phalanx bone. During a second surgical procedure performed after the first surgical procedure, the first articulation component is removed from the first stem component and the second articulation component is removed from the second stem component. A third articulation component is attached to the first stem component and a fourth articulation component is attached to the second stem component. The second surgical procedure is performed without removing the first stem component from the first bone and without removing the second stem component from the second bone.

Abstract: A glenoid implant is provided and may include a body and a fixation member. The body may include an articular surface and a scapula-engaging surface opposite from the articular surface. The fixation member may extend from the scapula-engaging surface for fixing the glenoid implant to a scapula. The fixation member may include an annular fin having a peripheral surface that defines at least one dimple.

Abstract: The present disclosure describes a glenoid implant including a body and a fixation member. The body has an articular surface and a scapula-engaging surface opposite from the articular surface. At least a portion of the scapula-engaging surface is configured to mirror and conform to a surface of a scapula of a specific patient based on a three-dimensional (3D) model of the scapula. The fixation member extends from the scapula-engaging surface for fixing the glenoid implant to the scapula.

Abstract: A patient-specific alignment guide includes a three-dimensional engagement surface customized in a pre-operating planning stage by computer imaging to closely mate and conform to a corresponding bone portion of a patient's elbow joint. The patient-specific alignment guide defines a first longitudinal guiding bore aligned with a reference axis associated with the elbow joint of patient when the alignment guide is mounted onto the corresponding bone portion.

Abstract: A method of implanting a wrist prosthesis in a distal portion of an ulna for articulation at least near a radius and a carpal complex of a wrist joint is provided. The method can include forming an incision near a distal portion of the radius and ulna joint. The method can also include resecting a distal portion of the ulna and positioning a stage member in a fixed position relative to the ulna. The method can further include sliding a bearing member relative to the stage member to hold the bearing member relative to the stage member and the distal ulna. The method can also include fixing the bearing member to a bearing fixation member extending from the stage member, and attaching soft tissue to at least one of the bearing member and the stage member.

Abstract: An instrument for measuring the medullary canal of a long bone in order to determine the proper size for a stem centralizer is provided. The instrument includes an elongated central portion defining opposed first and second ends and a contact portion. The contact portion extends from the first end or the second end of the elongated central portion. The contact portion has a contact area for contact with the medullary canal and defines a relief area for providing clearance between the instrument and the medullary canal.

Abstract: An elbow prosthesis according to the present teachings can include a stem structure and an articulating component. The stem structure can be operable to be positioned in a bone of a joint. The stem structure can include a stem portion that is operable to be positioned in the bone and a C-shaped body portion having a first retaining mechanism formed thereon. The articulating component can have a second retaining mechanism formed thereon. One of the first and second retaining mechanisms can include an extension portion and a first anti-rotation portion. The other retaining mechanism can include a receiving portion and a second anti-rotation portion. The articulating component can be advanced from an insertion position to an assembled position, such that the first and second mechanisms cooperatively interlock to inhibit translation and rotation of the articulating component relative to the C-shaped body portion of the stem structure.

Abstract: A method for implanting a prosthesis system for replacement of a head portion of a proximal radius includes determining a distance between a proximal radius and a humerus. The method also includes selecting one of a first head component or a second head component based on the determination. The first and second head components have unique heights. The method further includes connecting the selected first or second head component to an articulation component and connecting a stem component to the selected first or second head component.

Abstract: An instrument for measuring the medullary canal of a long bone in order to determine the proper size for a stem centralizer is provided. The instrument includes an elongated central portion defining opposed first and second ends and a contact portion. The contact portion extends from the first end or the second end of the elongated central portion. The contact portion has a contact area for contact with the medullary canal and defines a relief area for providing clearance between the instrument and the medullary canal.

Abstract: A method of implanting a distal radial wrist implant relative to a host radius while salvaging at least portions of fractured radial bone can include, determining a size of a host radius. A distal radial component can be selected based on the determination. The distal radial component can have a body that includes a first connection portion. A stem portion can be selected based on the determination. The stem portion can have a second connection portion. Portions of the fractured radial bone can be located around the body. The portions of the fractured radial bone can be secured relative to the body. The first connection portion of the distal radial component can be coupled with the second connection portion of the stem portion. The distal radial implant can be implanted relative to the host radius.

Abstract: A prosthesis system for replacement of a head portion of a proximal radius can include an articulation component having a first connection portion. A first head component can have a second connection portion that connects to the first connection portion. A second head component can have a third connection portion that connects to the first connection portion. The second head component can have a distinct dimension from the first head component. A stem component can include a fourth connection portion that connects with either of the first or second head components. The stem component can have a stem anchoring portion that connects to the radius.

Abstract: The present teachings provide an ulnar head implant. The implant can include a head component adapted to articulate with a portion of the anatomy. The head component can define a coupling bore through a surface. The implant can also include a stem component having a base and a post that extends from the base for insertion into a prepared portion of an anatomy. The base can include a coupling feature. The implant can include an intermediate component receivable within the coupling bore and couplable to the coupling feature to couple the head component to the stem component.

Abstract: An orthopedic plate assembly for supporting a bone can include a y-shaped first plate and a second plate separate from the first plate. The first plate can be attached to the bone and have a center line. The first plate can include an elongate body attachable to a first portion of the bone and extending along the center line and first and second arms transversely extending from an end of the body. The first and second arms can define an aperture in the first plate. The second plate can be attached to the bone. The second plate can have a first end and a second end opposite the first end configured to be disposed on and engaged with the first arm and the second arm, respectively. The second plate can be configured to span the aperture transverse to the center line when engaged with the first and second arms.