# US 11,298,234 B2 · Shoulder arthroplasty system > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 11,298,234 B2 - Document ID: US11298234B2 - Status: Granted - Kind: B2 - Application number: 16/425,000 - Filed: 2019-05-29 - Published: 2019-09-12 - Granted: 2022-04-12 - Earliest claimed: 2006-01-20 - Assignees: Zimmer, Inc. - Applicants: Zimmer, Inc. - Inventors: Roy C Wiley; Brian C. Hodorek - Web page: https://patentgrep.com/patent/US11298234B2 ## CPC - A61F 2/30734: {Modular inserts, sleeves or augments, e.g. placed on proximal part of stem for fixation purposes or wedges for bridging a bone defect} - A61F 2/40: for shoulders - A61F 2/4014: {Humeral heads or necks; Connections of endoprosthetic heads or necks to endoprosthetic humeral shafts} - A61B 17/8047: {wherein the additional element surrounds the screw head in the plate hole (A61B17/8052 takes precedence)} - A61B 17/842: {Flexible wires, bands or straps (A61B17/72, A61B17/82, A61B17/86 take precedence)} - A61B 17/86: Pins or screws {or threaded wires; nuts therefor (A61B17/72 take precedence)} - A61F 2/4684: {Trial or dummy prostheses} - A61F 2002/30332: {Conically- or frustoconically-shaped protrusion and recess} - A61F 2002/30367: {with additional means for preventing said rotation} - A61F 2002/305: {Snap connection} - A61F 2002/30578: {having apertures, e.g. for receiving fixation screws} - A61F 2002/30607: {Kits of prosthetic parts to be assembled in various combinations for forming different prostheses} - A61F 2002/30616: {Sets comprising a plurality of prosthetic parts of different sizes or orientations} - A61F 2002/30772: {Apertures or holes, e.g. of circular cross section} - A61F 2002/30878: {with non-sharp protrusions, for instance contacting the bone for anchoring, e.g. keels, pegs, pins, posts, shanks, stems, struts} - A61F 2002/3092: {having an open-celled or open-pored structure} - A61F 2002/3093: {for promoting ingrowth of bone tissue} - A61F 2002/4011: {including proximal or total replacement of the humerus} - A61F 2002/4022: {having a concave shape, e.g. hemispherical cups} - A61F 2002/4037: {Connections of heads to necks} - A61F 2002/4051: {Connections of heads directly to shafts} - A61F 2002/4085: {having a convex shape, e.g. hemispherical heads} - A61F 2002/4641: {for disconnecting} - A61F 2220/0025: Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements - A61F 2220/0033: made by longitudinally pushing a protrusion into a complementary-shaped recess, e.g. held by friction fit - A61F 2250/0062: Kits of prosthetic parts to be assembled in various combinations for forming different prostheses - A61F 2310/00491: Coating made of niobium or Nb-based alloys - A61F 2310/00544: Coating made of tantalum or Ta-based alloys - A61F: FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS (dental prosthetics A61C) - A61B: DIAGNOSIS; SURGERY; IDENTIFICATION (usefulness limited to only animals A61D) ## 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. ## Claims ### Claim 1 A method of performing a shoulder arthroplasty procedure, comprising: preparing a planar surface of a glenoid of a patient; seating a planar medial side of a substantially cup-shaped body against the planar surface of the glenoid, the body defining a fastener hole including an at least partially spherical seat and defining a hole opening in the planar medial side; inserting a fastener into the fastener hole, wherein the fastener includes an at least partially spherical head polyaxially movable relative to the seat and a threaded shank engageable to the planar surface of the glenoid; and interfacing a tapered bore of a glenosphere to a cooperatively tapered annular wall extending from a lateral side of the body to lockingly secure the glenosphere to the body, the tapered bore and the tapered annular wall providing the sole securement means between the glenosphere and the body. ### Claim 2 (depends on 1) The method of claim 1, wherein the glenosphere has a greater diameter than an outer periphery of the body. ### Claim 3 (depends on 1) The method of claim 1, wherein the body further comprises a stem extending from the planar medial side, the stem defining a longitudinal axis. ### Claim 4 (depends on 3) The method of claim 3, wherein the planar medial side extends radially outwardly from the stem to an outer periphery of the body. ### Claim 5 (depends on 4) The method of claim 4, wherein the stem includes an attached pad or a coating of a highly porous biomaterial. ### Claim 6 (depends on 5) The method of claim 5, wherein the planar medial side of the body also includes an attached pad or a coating of the highly porous biomaterial. ### Claim 7 (depends on 6) The method of claim 6, wherein the highly porous biomaterial comprises a bone ingrowth-receptive material. ### Claim 8 (depends on 3) The method of claim 3, further comprising: moving the fastener polyaxially at least between an axis parallel to the longitudinal axis defined by the stem and an axis up to about 30 degrees transverse to the longitudinal axis. ### Claim 9 (depends on 1) The method of claim 1, further comprising: engaging a tool to a polygonal fitting in the head of the fastener and rotating the tool to drive the threaded shank of the fastener into the planar surface of the glenoid. ### Claim 10 (depends on 1) The method of claim 1, wherein the fastener hole includes a threaded surface. ### Claim 11 (depends on 10) The method of claim 10, further comprising: coupling an insert member to the threaded surface of the fastener hole. ### Claim 12 (depends on 1) The method of claim 1, wherein the tapered bore of the glenosphere is offset from a longitudinal axis of the glenosphere. ### Claim 13 A method of performing a shoulder arthroplasty procedure, comprising: preparing a planar surface of a glenoid of a patient; seating a planar medial side of a substantially cup-shaped body against the planar surface of the glenoid, the body defining a central longitudinal axis and including a first fastener hole, a second fastener hole, a stem extending from the planar medial side, wherein the planar medial side extends radially outwardly from the stem to an outer periphery of the body, and a pad or coating of a highly porous biomaterial extending from the outer periphery of the body and across the planar medial side and the stem, the highly porous biomaterial being a bone ingrowth-receptive material; inserting a first polyaxial fastener into the first fastener hole along a first trajectory, the first polyaxial fastener including an at least partially spherical head; inserting a second polyaxial fastener into the second fastener hole along a second trajectory, the second polyaxial fastener including an at least partially spherical head; and lockingly fitting a glenosphere to the body solely via a taper lock connection, wherein the taper lock connection is formed by interfacing a tapered interior bore of the glenosphere with a cooperatively tapered annular wall extending from a lateral side of the body. ### Claim 14 (depends on 13) The method of claim 13, wherein the first and second trajectories are selectable from a range of trajectories defined between the central longitudinal axis of the body and an axis about 30 degrees transverse to the central longitudinal axis. ### Claim 15 (depends on 13) The method of claim 13, wherein the first trajectory defines a first angle with the central longitudinal axis of the body that is greater than 0 degrees and less than about 30 degrees. ### Claim 16 (depends on 15) The method of claim 15, wherein the second trajectory defines a second angle with the central longitudinal axis of the body that is greater than 0 degrees and less than about 30 degrees. ### Claim 17 A method of performing a shoulder arthroplasty procedure, comprising: preparing a planar surface of a glenoid of a patient; seating a planar medial side of a substantially cup-shaped body against the planar surface of the glenoid, the body defining a central longitudinal axis and including a first fastener hole and a second fastener hole; drilling a first pilot hole along a first trajectory extending through the first fastener hole, the first trajectory defining a first angle with the central longitudinal axis; drilling a second pilot hole along a second trajectory extending through the second fastener hole, the second trajectory defining a second angle with the central longitudinal axis; inserting a first polyaxial fastener into the first fastener hole along the first trajectory; inserting a second polyaxial fastener into the second fastener hole along the second trajectory; and securing a glenosphere component to the body solely via a taper lock connection, wherein the taper lock connection is formed by interfacing a tapered bore of the glenosphere component with a cooperatively tapered annular wall extending from a lateral side of the body. ### Claim 18 (depends on 17) The method of claim 17, wherein the tapered bore of the glenosphere component is offset from a longitudinal axis of the glenosphere component.