Abstract: A humeral prosthesis, for the articulation of a humerus in a scapula of a shoulder having a glenoid cavity, includes an articulation device able to be associated both with an articulation element mounted on the glenoid cavity, and also at the top of said humerus by an attachment element. The articulation device comprises a first element able to articulate with the articulation element and a second element associated with the attachment element, the first element and the second element being pivoted to each other around a pivoting axis to allow a free relative rotation thereof around the pivoting axis.

Abstract: One embodiment of the present invention relates to a reverse shoulder assembly. Another embodiment of the present invention relates to a reverse shoulder assembly method of use. In one example, a reverse shoulder assembly of the present invention may be provided such that the reverse shoulder assembly alters the abduction force created by a patient's deltoid to a forward flexion force. In one example, a reverse shoulder assembly of the present invention may be provided such that the reverse shoulder assembly alters the abduction force created by a patient's deltoid to an external rotation force. In one example, a reverse shoulder assembly of the present invention may be provided such that the reverse shoulder assembly alters the abduction force created by a patient's deltoid to an external rotation force and a forward flexion force.

Abstract: One embodiment of the present invention relates to a reverse shoulder assembly. Another embodiment of the present invention relates to a reverse shoulder assembly method of use. In one example, a reverse shoulder assembly of the present invention may be provided such that the reverse shoulder assembly alters the abduction force created by a patient's deltoid to a forward flexion force. In one example, a reverse shoulder assembly of the present invention may be provided such that the reverse shoulder assembly alters the abduction force created by a patient's deltoid to an external rotation force. In one example, a reverse shoulder assembly of the present invention may be provided such that the reverse shoulder assembly alters the abduction force created by a patient's deltoid to an external rotation force and a forward flexion force.

Abstract: A shoulder implant assembly including a humeral stem, a head, a cup, and a taper adaptor. The humeral stem is configured to be inserted into a humerus bone. The head includes a metal substrate having a coupling taper and a polymeric cover mounted to the metal substrate having a convex outer surface and a generally planar base. The cup has a concave surface configured to articulate with the polymeric cover of the head. The taper adaptor is configured to mate with the coupling taper of the head. The taper adaptor is configured to connect the head to the stem when the cup is connected to a glenoid. The taper adaptor is configured to connect the head to the glenoid when the cup is connected to the humeral stem.

Abstract: One embodiment of the present invention relates to a reverse shoulder assembly. Another embodiment of the present invention relates to a reverse shoulder assembly method of use. In one example, a reverse shoulder assembly of the present invention may be provided such that the reverse shoulder assembly alters the abduction force created by a patient's deltoid to a forward flexion force. In one example, a reverse shoulder assembly of the present invention may be provided such that the reverse shoulder assembly alters the abduction force created by a patient's deltoid to an external rotation force. In one example, a reverse shoulder assembly of the present invention may be provided such that the reverse shoulder assembly alters the abduction force created by a patient's deltoid to an external rotation force and a forward flexion force.

Abstract: An insert (1) designed for insertion into a central cavity (10) within the upper part of the prosthetic stem (13) of a shoulder prosthesis. The insert (1) is provided with at least one transverse hole (6) that is threaded or provided with an inner retaining rib or any other screw-locking means. The insert (1) is designed for locking of transverse tuberosity bone screws (4) in the same way as a cross-dowel-nut. The outer surface of the prosthetic stem (13) is provided with at least one transverse unthreaded hole (7) communicating with the central cavity (10) in order to allow a sliding passage for the bone screw (4).The insert for a prosthetic humeral head implant of an anatomical shoulder prosthesis is interchangeable with an insert for the cup-shaped humeral implant (18) of a reverse shoulder prosthesis. The insert (1) is provided with a fixation site (8) for a targeting arm.

Abstract: The invention relates to a three-dimensional hinge (100) comprising a first rigid body (10), a second rigid body (20) and a joint member. The joint member connects the first rigid body (20) and the second rigid body (20). The joint member comprises at least three base connectors (32,33,34), each base connector connected to the second rigid body (20) at respective connection point (22, 23, 24) and engaging with an engaging portion of the first rigid body.

Abstract: A prosthesis humeral implant has a stem including a coupling element at a proximal end thereof and a head having a coupling element at a distal portion thereof for coupling to the stem portion coupling element. The head has a bearing surface portion for articulating on a prosthetic glenoid and a base portion. A soft tissue attachment element has an L-shape with a mounting flange portion of the L-shape extending and clamped between the bearing portion and base portion. The soft tissue attachment portion has a portion extending proximally from the mounting flange portion. The soft tissue attachment element mounting portion is captured between the head bearing portion and base portion preferably by clamping or being permanently attached to one of the base or bearing portions during manufacture.

Abstract: A set of surgical components for use in a joint arthroplasty to reconstruct a head of a joint is provided. The set of surgical components can include a head member having a first articulating surface opposite a first fixation surface. The first fixation surface can define a first portion that extends outwardly from the first fixation surface. The set of surgical components can include a base member having a fixation peg with three generally triangular fins and a second fixation surface defined as a recess within a top surface of the fixation peg. The first portion of the head member can be received within the recess of the base member to couple the head member to the base member.

Abstract: A method and apparatus of performing a procedure relative to the glenohumeral joint. Resection of the glenoid and/or the humerus can proceed through an incision formed near the glenohumeral joint. The incision can be formed generally near a superior-lateral portion near the glenohumeral joint and allow less invasive access to the glenohumeral joint and the portions that form the glenohumeral joint. A stem is positioned into a resected humerus through the incision. A humeral head is coupled to the stem within the incision after the stem has been coupled to the patient's humerus.

Abstract: A cup intended to interact with a prosthetic humeral head has a generally circular shape and positioning and anchoring devices for embedding the cup in an anatomical glenoid cavity in such a way that a load-bearing and sliding surface of the cup is integrated into the continuity of the anatomical cavity so as to be perfectly congruent with the humeral head.

Abstract: An implant assembly and associated method for selectively performing reverse and traditional arthroplasty for a shoulder joint that includes a humerus and a glenoid. The implant assembly may include a head, a cup, a humeral stem and an adaptor. The method includes inserting the humeral stem to the humerus and connecting a male taper of the adaptor to a female taper of the head. For reverse arthroplasty, the method includes attaching the adaptor to the glenoid and the cup to the stem. For traditional arthroplasty, the method includes attaching the adaptor to the humeral stem and the cup to the glenoid. The method also includes articulating the head with the cup.

Abstract: A glenoid component for a shoulder prosthesis adapted to be mounted in a glenoid cavity of a shoulder. An elongated keel adapted to engage with the glenoid cavity is attached to the internal surface of the base. The keel extends along a longitudinal axis of the base. The keel includes various configurations of transverse members extending away from the longitudinal axis. The surgeon selects a glenoid component with a keel and transverse member configuration that is anatomically optimized for the patient. Glenoid components properly optimized provide mechanical strength and stability superior to prior art devices. The glenoid components disclosed herein are particularly well suited for use in an anatomical total shoulder prosthesis, but may are also suited to partial shoulder prostheses and reverse shoulder prostheses.

Abstract: An implant assembly and associated method for selectively performing reverse and traditional arthroplasty for a shoulder joint that includes a humerus and a glenoid. The implant assembly may include a head, a cup, a humeral stem and an adaptor. The method includes inserting the humeral stem to the humerus and connecting a male taper of the adaptor to a female taper of the head. For reverse arthroplasty, the method includes attaching the adaptor to the glenoid and the cup to the stem. For traditional arthroplasty, the method includes attaching the adaptor to the humeral stem and the cup to the glenoid. The method also includes articulating the head with the cup.

Abstract: An implant assembly and associated method for selectively performing reverse and traditional arthroplasty for a shoulder joint that includes a humerus and a glenoid. The implant assembly may include a head, a cup, a humeral stem and an adaptor. The method includes inserting the humeral stem to the humerus and connecting a male taper of the adaptor to a female taper of the head. For reverse arthroplasty, the method includes attaching the adaptor to the glenoid and the cup to the stem. For traditional arthroplasty, the method includes attaching the adaptor to the humeral stem and the cup to the glenoid. The method also includes articulating the head with the cup.

Abstract: A prosthesis assembly configured for use with a scapula in one embodiment includes a spherical humeral component, an elongated glenoid bearing including a first bearing surface with (i) a first spherical end portion with a first radius of curvature, (ii) a second spherical end portion with a second radius of curvature, and (iii) a central portion located between the first spherical end portion and the second spherical end portion, and a first coupling portion extending from a second bearing surface opposite the bearing surface, and a base configured to rotatably support the elongated glenoid bearing, wherein the first radius of curvature is substantially equal to the second radius of curvature and the central portion does not have a radius of curvature that is substantially equal to the second radius of curvature.

Abstract: Glenoid prosthesis with a hybrid design (combining both peg and keel designs), and surgical methods for reconstitution of a shoulder joint. The hybrid design combines both peg and keel components into one device. The hybrid glenoid component of a shoulder prosthesis includes an oval body having a concave lateral articulating surface and an opposing convex medial surface. The medial surface is provided with a plurality of pegs and a single inferior protrusion. The pegs are used to attain both a superior location as well as a central location. The inferior protrusion provides stability in the superior-to-inferior translation of the humeral head, as well as rotational articulation of the same.

Abstract: A method of preparing for a surgical procedure includes creating a three-dimensional bone model of a subject bone of a patient. At least a portion of the bone model is compared to at least one three-dimensional reference anatomic model. At least one structural difference between the bone model and the at least one reference anatomic model is identified. At least one desired subject bone structural change is specified to produce a modified bone model responsive to the step of identifying at least one structural difference between the bone model and the at least one reference anatomic model. An apparatus for preparing for a surgical procedure is also provided.

Abstract: A prosthesis assembly for use with a scapula in one embodiment includes an acromion spacer unit, a first articulation surface on an inferior surface of the acromion spacer unit, a bone contacting surface on a superior surface of the acromion spacer unit, and a bone mounting member extending sideways from the acromion spacer unit and oriented such that when the acromion spacer unit is mounted on a scapula, the acromion spacer unit is positioned at a height above the height of a midpoint of a glenoid fossa of the scapula.

Abstract: Method and set of surgical instruments for fitting a shoulder prosthesis, and the shoulder prosthesis. The proposed method seeks to interpose a bone graft between the previously prepared glenoid surface of a scapula of a patient's shoulder and the face of a glenoid prosthetic component opposite the articular surface. The set of instruments permit the bone graft to be taken from the upper epiphysis of the humerus, either in situ or ex vivo.

Abstract: Disclosed is a set of prosthetic components for use in shoulder replacements. A glenoid component having a base and a plurality of coupling members are disclosed. The coupling members are used to couple the base to at least one of the acromion or coracoid process. A polymer insert which is configured to couple to the base member and articulate with a humeral component is provided.

Abstract: A glenoid component having an offset center of articulation and associated systems and methods.

Abstract: A shoulder implant assembly including a humeral stem, a head, a cup, and a taper adaptor. The humeral stem is configured to be inserted into a humerus bone. The head includes a metal substrate having a coupling taper and a polymeric cover mounted to the metal substrate having a convex outer surface and a generally planar base. The cup has a concave surface configured to articulate with the polymeric cover of the head. The taper adaptor is configured to mate with the coupling taper of the head. The taper adaptor is configured to connect the head to the stem when the cup is connected to a glenoid. The taper adaptor is configured to connect the head to the glenoid when the cup is connected to the humeral stem.

Abstract: A method of forming a shoulder prosthesis includes forming a concave articular surface into an end portion of a humerus, including compacting bone of the end portion to define the concave articular surface. An implant having a convex articular surface is secured to a glenoid. The concave articular surface of the humerus is articulated with the convex articular surface of the implant.

Abstract: A glenoid component used for shoulder arthroplasty is adapted to be implanted into a scapula and engaged by a head of a humeral component. The glenoid component includes a body having a first articulating surface and a second medial surface opposite to the first articulating surface. The first articulating surface is adapted to engage with a humeral head. A plurality of removable fixed pegs each have a first end adapted to engage a cavity formed in the scapula and a second end extending from the medial surface. A central peg fixation mechanism is provided that is configured to couple an optional central fixation peg to the medial surface.

Abstract: Prosthetic systems, devices, and methods for attaching prosthetic joint components to a vault-shaped portion of the anatomy. A device for attaching a glenoid joint component for a shoulder prosthesis to a glenoid cavity includes a body adapted to extend into the cortical bony vault of the glenoid cavity for supporting the glenoid joint component and a plurality of contact arms secured to the body and projecting outwardly from a central longitudinal axis of the body to define contact surfaces for engaging an internal face of a peripheral wall of a glenoid vault.

Abstract: One embodiment of the present invention relates to a reverse shoulder assembly. Another embodiment of the present invention relates to a reverse shoulder assembly method of use. In one example, a reverse shoulder assembly of the present invention may be provided such that the reverse shoulder assembly alters the abduction force created by a patient's deltoid to a forward flexion force. In one example, a reverse shoulder assembly of the present invention may be provided such that the reverse shoulder assembly alters the abduction force created by a patient's deltoid to an external rotation force. In one example, a reverse shoulder assembly of the present invention may be provided such that the reverse shoulder assembly alters the abduction force created by a patient's deltoid to an external rotation force and a forward flexion force.

Abstract: A prosthesis that mechanically couples with both cancellous bone and cortical bone of a glenoid includes a head portion comprising a rear surface and an articular surface, an anchor member, and a plurality of deformable fins extending radially outward from the anchor member. The anchor member includes a distal end and a proximal end connected to the rear surface of the head portion. The plurality of deformable fins extend radially outward from the anchor member and includes at least a first proximal fin adjacent to the rear surface of the head portion positioned to engage with the cortical bone. The anchor member may also include at least one distal fin located proximate the distal end of the anchor member positioned to engage with the cancellous bone.

Abstract: An implant system for total shoulder arthroplasties, hemi shoulder arthroplasties, and “reverse” total shoulder arthroplasties including a humeral stem having an enlarged head portion with interfaces adapted to removably receive various modular interchangeable components, such as articulating liners, spacers, and adapter inserts. The humeral stem functions as a universal platform that may be used in either conventional or “reverse” total shoulder arthroplasties, as well as hemi shoulder arthroplasties, and may remain implanted in place during a revision in which the implant system is converted between the foregoing configurations, for example.

Abstract: A glenoid component used for shoulder arthroplasty is adapted to be implanted into a scapula and engaged by a head of a humeral component. The glenoid component includes a body having a first articulating surface and a second medial surface opposite to the first articulating surface. The first articulating surface is adapted to engage with a humeral head. A plurality of fixed pegs each have a first end adapted to engage a cavity formed in the scapula and a second end extending from the medial surface. A central peg fixation mechanism is provided that is configured to couple an optional central fixation peg to the medial surface.

Abstract: A total shoulder prosthesis includes a glenoidal component a substantially hemispherical convex articular surface and of which a center of curvature is adapted, when the prosthesis is implanted, to be located in the glenoid cavity or in the immediate vicinity thereof, and a humeral component defining a concave articular surface adapted to cooperate with the convex articular surface of the glenoidal component. The concave humeral articular surface is defined by a metallic part of the humeral component to thereby reduce a space requirement of the prosthesis.

Abstract: A prosthetic implant comprising a head having a spherical pyrocarbon shell (13,73) that is attached to a metal substructure (17,77) via an intermediate element (15,45,75). A subassembly of the intermediate element and the pyrocarbon shell may be connected to the metal substructure via a metal split ring (19) that resides partially in each of two facing grooves (33,35) or via interengaging elements (85,87,91) that are provided in two juxtaposed cylindrical surfaces. The design is such that compressive forces applied to the implant at its spherical articulating surface are transferred via compression through the pyrocarbon shell to the metal substructure.

Abstract: A glenoid component apparatus for shoulder arthroplasty includes a bearing portion and a stem portion connected to the bearing portion. The stem portion is modeled from a normalized glenoid vault morphology. A method for making a glenoid component for shoulder arthroplasty includes obtaining a model of a normalized glenoid vault morphology and producing a stem portion of the glenoid component based on the model.

Abstract: A shoulder joint prosthesis has an at least two-pieced humeral head prosthesis, comprising a calotte, or a joint head (3) and a fixing body (5, 7). The latter comprises a fixing piece (15), for detachable connection of the calotte and a mounting section (21), for the at least cement-free anchoring of the fixing device in the bone. The fixing body is preferably of two-piece embodiment, comprising a discoid positioning body (5) with a medial hole and an anchoring body (7), provided for fixing the positioning body (5) to the bone through the medial hole (19).

Abstract: The present invention discloses an improved shoulder joint implant assembly including a plastic ball secured to a first joint defining bone end face and a plastic receiver secured to a second joint defining bone end face. Each of the ball and receiver implants are constructed of a composite hardened plastic with a softened cartilage wear surface plastic. A fastener is secured to the first joint defining bone end face and over which is mounted the plastic ball. Anchoring of the receiver is established by a pair of integrally formed and inwardly extending mounting tabs, these further extending into further recess machined cavities in the first bone.

Abstract: An implant assembly and associated method for selectively performing reverse and traditional arthroplasty for a shoulder joint that includes a humerus and a glenoid. The implant assembly may include a head, a cup, a humeral stem and an adapter. The method includes inserting the humeral stem to the humerus and connecting a male taper of the adapter to a female taper of the head. For reverse arthroplasty, the method includes attaching the adapter to the glenoid and the cup to the stem. For traditional arthroplasty, the method includes attaching the adapter to the humeral stem and the cup to the glenoid. The method also includes articulating the head with the cup.

Abstract: This shoulder prosthesis, comprising a glenoid element (6) intended to be attached to the scapula. According to the invention, this glenoid element (6) comprises a distal anchoring tail (20) and a proximal flange (21), the distal anchoring tail (20) having a substantially “I-shaped” cross-section, i.e. with a central core and two side walls substantially perpendicular to this central core, and with a helicoidally twisted shape, and the proximal flange (21) being perforated with at least one hole (30); and the prosthesis comprises at least one screw (5) intended to be engaged into the hole (30) of said flange (21) and inserted into the bone.

Abstract: Attachment element for a prosthesis of the shoulder for the articulation of a humerus in a scapula of a shoulder having a glenoid cavity. The prosthesis comprises a first articulation element associated with the top of the humerus, and a second articulation element associated with the glenoid cavity. The attachment element comprises a first part for removable anchorage to the first or second articulation element, and a second part for attachment of the prosthesis to the bone part of the scapula in a position outside the bulk of the first and second articulation element.

Abstract: A glenoid component apparatus for shoulder arthroplasty includes a bearing portion and a stem portion connected to the bearing portion. The stem portion is modeled from a normalized glenoid vault morphology. A method for making a glenoid component for shoulder arthroplasty includes obtaining a model of a normalized glenoid vault morphology and producing a stem portion of the glenoid component based on the model.

Abstract: A shoulder prosthesis comprising a socket and a condyle that cooperates with the socket. The condyle also cooperates with a base plate facing the scapula similar to a clamping connection, the condyle being plugged onto the base plate by means of a receptacle that is embodied on the condyle and is concentric to the center line thereof. the base plate can be anchored to the glenoid fossa of the scapula with the aid of a protrusion located on the base plate as well as anchoring elements which can be accommodated within sleeves provided on the base plate. According to the invention, the base plate has a dome-shaped bottom surface that is to rest against the glenoid fossa of the scapula, the center of the dome shape being eccentric to the center line of the base plate.

Abstract: A prosthetic shoulder implant includes a humeral component having an anchor and a head, and a glenoid component. The glenoid component is defined by a body having an outer surface including one or more tissue and bone in-growing material areas, a concave inner surface for accepting the head of the humeral component, and defining a stop portion which prevents the head of the humeral component from moving upwardly into contact with the acromion or clavicle. A method of total shoulder arthroplasty includes locating the humeral and glenoid components so that the glenoid component prevents movement of the humeral component into contact with the acromion or clavicle, and such that the glenoid component is permanently anchored to the patient by tissue and bone ingrowth into the outer surface of the component.

Abstract: The prosthesis according to the invention comprises a first component, humeral or femoral, presenting a concave surface of articulation and a second, intermediate component presenting first and second convex surfaces of articulation intended to cooperate respectively with the concave surface of articulation of the first component and with a glenoidal or acetabular concave surface of articulation. The second component is hollow and defines a volume for receiving a head of a member belonging to the first component, this member being connected to a metaphyseal part of the first component by a stem, the head being connected to the second component by traversing an opening made in a ring of the second component mounted on a cup of which the outer surface forms the second convex surface of articulation of the second component. The first convex surface of articulation of the second component is formed on the outer surface of the ring, around the aforementioned opening.

Abstract: The glenoidal component for shoulder prosthesis according to the invention comprises a base adapted to be immobilized on a patient's glenoid cavity and an element adapted to be added on the base and defining a convex surface of articulation of which at least a part is globally in the form of a portion of sphere and centred on a geometric point, the base being provided with a part centred on an axis and on which is added the afore-mentioned element. When the component is in assembled configuration, the geometric centre and the afore-mentioned axis are offset with respect to each other.

Abstract: This adaptable humeral implant comprises an anchoring stem (1, 8) and a male insert (6) or a female insert (30, 31) which are able to cooperate with the glenoid cavity or a glenoid implant. It additionally comprises a removable support (5) intended to fit directly or indirectly to the upper end (3) of the anchoring stem (1, 8) and to cooperate with an intermediate neck (7), which is itself provided with means for cooperation with the male or female implant.

Abstract: A glenoid prosthesis can include a bearing shell for accommodating the head of the humerus and a stem extending at an angle from a reverse face of the shell so as to engage the stem within a canal in the lateral border of the scapula for anchoring the glenoid prosthesis to the scapula. The prosthesis can be one piece or modular, where the shell and stem can be chosen from a plurality of shapes and sizes to most closely match the natural anatomy of the joint. A fastening means can attach the shell to the stem and a wearing surface can be secured to the face of the shell. The stem can be sized slightly larger than the canal and forcibly inserted into the canal to anchor the glenoid prosthesis to the scapula. Flutes, barbs, threads, etc. on the stem can further secure the stem within the canal.

Abstract: A shoulder model and methods of shoulder arthroscopy using the shoulder model. The shoulder model includes an acromioclavicular (AC) joint assembly, a joint capsule assembly, a scapula mount, a shoulder musculature, a skin, and a base. The AC joint assembly is mounted on the scapula mount and the joint assembly is attached to the AC joint assembly and fastened using a screw/nut to form the shoulder assembly. The shoulder assembly is placed in the shoulder musculature and the skin is rolled over the shoulder musculature and zipped in place. The bones of the shoulder assembly are made of foam-cortical shell, the shoulder musculature is made of foam, the soft tissue components are made of thermoplastic elastomers, and the skin is made of vinyl.

Abstract: A glenoid component (100) for use with a prosthetic humeral component (102) for use in performing shoulder arthroplasty is provided. The glenoid component (100) may be fitted at least partially into a cavity (104) formed in the glenoid vault (106). The glenoid component (112) includes a body (112) having a stem portion (114) for inserting at least partially into the cavity (104) formed in the glenoid vault (106). The stem portion (114) cooperates with the interior wall (116) of the cavity (104) formed in the glenoid vault (106). The body (112) has a bearing portion (120) for articulating cooperation with the prosthetic humeral component (102).

Abstract: A set of humeral components for a total shoulder prosthesis, wherein each component is formed by an anchoring stem and a metaphyseal part which defines a concave surface of articulation in the form of a portion of a sphere. The offset between an axis of symmetry of this surface and a central axis of the metaphyseal part varies between the different components of the set. This makes it possible to limit or to avoid, by a reasoned choice of the humeral component used, an interference with the pillar of the scapula during a movement of adduction.

Abstract: A glenoid component for a shoulder prosthesis adapted to be mounted in a glenoid cavity of a shoulder. An elongated keel adapted to engage with the glenoid cavity is attached to the internal surface of the base. The keel extends along a longitudinal axis of the base. The keel includes various configurations of transverse members extending away from the longitudinal axis. The surgeon selects a glenoid component with a keel and transverse member configuration that is anatomically optimized for the patient. Glenoid components properly optimized provide mechanical strength and stability superior to prior art devices. The glenoid components disclosed herein are particularly well suited for use in an anatomical total shoulder prosthesis, but may are also suited to partial shoulder prostheses and reverse shoulder prostheses.

Abstract: A glenoid component used for shoulder arthroplasty is adapted to be implanted into a scapula and engaged by a head of a humeral component. The glenoid component includes a body having a first articulating surface and a second medial surface opposite to the first articulating surface. The first articulating surface is adapted to engage with a humeral head. A plurality of fixed pegs each have a first end adapted to engage a cavity formed in the scapula and a second end extending from the medial surface. A central peg fixation mechanism is provided that is configured to couple an optional central fixation peg to the medial surface.