Abstract: In one embodiment, a humeral implant is provided that includes a hollow stem and a mounting end. The hollow stem has a sharp distal edge. The mounting end has a mounting hole and a mounting channel disposed about the mounting hole. The mounting hole is configured to receive a tapered projection of an anatomic articular body. The mounting channel is configured to receive an annular projection of a reverse articular body.

Abstract: A patient specific shoulder guide is provided that includes a hub and a plurality of peripheral members. Each of the peripheral members has a peripheral member height dimension between the patient specific contact surface and a side of the peripheral member opposite the patient specific contact surface. At least one of the peripheral members is a low profile peripheral member in which the peripheral height dimension is less than the peripheral height dimension of at least one other of the peripheral members or is less than the hub height.

Abstract: A reaming guide for reaming a bone is disclosed. The reaming guide includes a peripheral member configured to mate with a peripheral guide feature; a rigid body extending from the peripheral member to adjacent to a reaming head of a reamer, where the rigid body is configured to be mounted to the reamer proximal of the reaming head; and a depth stop coupled with the rigid body, the depth stop having a distal portion configured to contact a first reamed glenoid surface when the reaming head has fully reamed a second reamed surface to a planned depth, the second reamed surface being angled to the first reamed surface.

Abstract: Various embodiments disclosed herein relate to stemmed and stemless humeral anchors for use in shoulder arthroplasty procedures. For example, the humeral anchor can include a first end, a second end, and an interior surface extending between the first end and the second end. The interior surface can be disposed about a recess disposed between the first end and the second end. The recess can be configured to secure a coupling of a shoulder articular body directly to the interior surface.

Abstract: An instrument to insert a humeral anchor includes a handle including a shaft extending from a first end to a second end; a manual grip at the first end configured to rotate the shaft; and a humeral anchor grip at the second end, wherein the handle is configured to actuate the humeral anchor grip between a first configuration to apply a radially outward force to an interior surface of the humeral anchor and a second configuration to separate the humeral anchor grip from the interior surface of the humeral anchor.

Abstract: Provided is a glenoid implant for a shoulder prosthesis that includes: a baseplate including a proximal end, a distal end, an outer periphery, and one or more recesses that extend therethrough adjacent to the outer periphery and extending from the proximal end to the distal end; an internal member disposed in each of the one or more recesses, the internal member defining an aperture extending from the proximal end to the distal end through the internal member; and a screw for each of the at least one internal member, the screw configured to be placed through the aperture, the screw having an external threaded surface. The internal threaded surface of the internal member has more thread starts than the external threaded surface of the screw.

Abstract: A patient specific shoulder guide is provided that includes a hub and a plurality of peripheral members. Each of the peripheral members has a peripheral member height dimension between the patient specific contact surface and a side of the peripheral member opposite the patient specific contact surface. At least one of the peripheral members is a low profile peripheral member in which the peripheral height dimension is less than the peripheral height dimension of at least one other of the peripheral members or is less than the hub height.

Abstract: In one embodiment, a humeral implant is provided that includes a hollow stem and a mounting end. The hollow stem has a sharp distal edge. The mounting end has a mounting hole and a mounting channel disposed about the mounting hole. The mounting hole is configured to receive a tapered projection of an anatomic articular body. The mounting channel is configured to receive an annular projection of a reverse articular body.

Abstract: A shoulder assembly is provided which includes a base member including a collar; a helical structure extending from the collar in a distal direction; and a first pathway projecting distally of the collar and through the helical structure adjacent to an inner periphery thereof, the first pathway being generally transverse to the helical structure and extending in a space between successive portions of the helical structure; and a locking device comprising a proximal support and a first arm projecting distally of the proximal support, the first arm configured to be disposed in the first pathway projecting distally of the collar when the proximal support is disposed adjacent to the collar; where the first arm is disposed through bone in the space between successive portions of the helical structure when the shoulder assembly is implanted.

Abstract: Various embodiments disclosed herein relate to stemmed and stemless humeral anchors for use in shoulder arthroplasty procedures. For example, the humeral anchor can include a first end, a second end, and an interior surface extending between the first end and the second end. The interior surface can be disposed about a recess disposed between the first end and the second end. The recess can be configured to secure a coupling of a shoulder articular body directly to the interior surface.

Abstract: Provided is a glenoid implant for a shoulder prosthesis that includes: a baseplate including a proximal end, a distal end, an outer periphery, and one or more recesses that extend therethrough adjacent to the outer periphery and extending from the proximal end to the distal end; an internal member disposed in each of the one or more recesses, the internal member defining an aperture extending from the proximal end to the distal end through the internal member; and a screw for each of the at least one internal member, the screw configured to be placed through the aperture, the screw having an external threaded surface. The internal threaded surface of the internal member has more thread starts than the external threaded surface of the screw.

Abstract: Embodiments of the present invention include a convertible prosthesis that is capable of conversion from a humeral head replacement to a reverse reconstruction without any removal of parts integrated into the patient's bony anatomy (e.g. implant stems). A desired overall implant inclination angle may be achieved by matching various implant stems with various reverse inserts, thus permitting a resection surface to be matched with an implant stem selection while also permitting a desired overall implant inclination angle to be achieved through the selection of an appropriate insert.

Abstract: A shoulder assembly is provided which includes a base member including a collar; a helical structure extending from the collar in a distal direction; and a first pathway projecting distally of the collar and through the helical structure adjacent to an inner periphery thereof, the first pathway being generally transverse to the helical structure and extending in a space between successive portions of the helical structure; and a locking device comprising a proximal support and a first arm projecting distally of the proximal support, the first arm configured to be disposed in the first pathway projecting distally of the collar when the proximal support is disposed adjacent to the collar; where the first arm is disposed through bone in the space between successive portions of the helical structure when the shoulder assembly is implanted.

Abstract: The invention concerns a method for manufacturing a prosthesis (11) for a fractured long bone of a patient, the method comprising the steps of: A) providing data representative of the fractured long bone, the fractured long bone comprising a diaphyseal fragment (2) comprising a medullary cavity (8); B) based on said data, designing the prosthesis specifically to the patient, the prosthesis comprising a stem part (12) configured to be inserted into the medullary cavity, step B) comprising: a sub-step of choosing, specifically to the patient, a contact zone (40) of the medullary cavity onto which a respective chosen mechanical stress is planned to be applied by the stem part, and a sub-step of designing the stem part so that the stem part may be inserted into the medullary cavity and thus apply the chosen mechanical stress to said contact zone; and C) manufacturing the prosthesis designed at step B).

Abstract: Provided is a method for manufacturing a prosthesis for a fractured long bone of a patient. The method includes: providing data representative of the fractured long bone of the patient, the fractured long bone comprising a diaphyseal fragment comprising a medullary cavity; based on the data provided, designing the prosthesis specifically to the patient, wherein the prosthesis comprising a stem part configured to be inserted into the medullary cavity for securing the stem part to the diaphyseal fragment.

Abstract: Embodiments of the present invention include a convertible prosthesis that is capable of conversion from a humeral head replacement to a reverse reconstruction without any removal of parts integrated into the patient's bony anatomy (e.g. implant stems). A desired overall implant inclination angle may be achieved by matching various implant stems with various reverse inserts, thus permitting a resection surface to be matched with an implant stem selection while also permitting a desired overall implant inclination angle to be achieved through the selection of an appropriate insert.

Abstract: A prosthesis assembly including a base member that has a helical structure and one or more pathways. The helical structure extends between a first end and a second end. The pathway is accessible from the second end and is directed toward the first end through the helical structure. The pathway is located inward of an outer periphery of the helical structure. The pathway extends in a space between successive portions of the helical structure. The prosthesis assembly includes a locking device that has a support member and an arm that projects away from the support member. The arm is configured to be disposed in the pathway when the support member is disposed adjacent to the second end of the base member. The arm is disposed through bone in the space between successive portions of the helical structure when the prosthesis assembly is implanted.