# US 10,945,852 B2 · Orthopaedic implants and methods > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 10,945,852 B2 - Document ID: US10945852B2 - Status: Granted - Kind: B2 - Application number: 16/050,399 - Filed: 2018-07-31 - Published: 2018-12-13 - Granted: 2021-03-16 - Earliest claimed: 2010-08-13 - Assignees: Smith & Nephew, Inc. - Applicants: Smith & Nephew, Inc. - Inventors: Ryan Lloyd Landon - Web page: https://patentgrep.com/patent/US10945852B2 ## CPC - A61F 2/389: {Tibial components (A61F2/3868 takes precedence)} - 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 2/30767: {Special external or bone-contacting surface, e.g. coating for improving bone ingrowth} - A61F 2002/30331: {made by longitudinally pushing a protrusion into a complementarily-shaped recess, e.g. held by friction fit} - A61F 2002/30332: {Conically- or frustoconically-shaped protrusion and recess} - A61F 2002/30354: {Cylindrically-shaped protrusion and recess, e.g. cylinder of circular basis} - A61F 2002/30405: {made by screwing complementary threads machined on the parts themselves} - A61F 2002/30769: {madreporic} - A61F 2002/30845: {with cutting edges} - A61F 2002/30878: {with non-sharp protrusions, for instance contacting the bone for anchoring, e.g. keels, pegs, pins, posts, shanks, stems, struts} - A61F 2002/30884: {Fins or wings, e.g. longitudinal wings for preventing rotation within the bone cavity} - A61F 2002/30899: {Protrusions pierced with apertures} - A61F 2002/3092: {having an open-celled or open-pored structure} - 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) ## Abstract There is provided a tibial component comprising: a tibial tray with an inferior side; and a support member connected to the inferior side of the tibial tray, the support member having a stem portion, the support member further comprising at least one opening. In one embodiment, the at least one opening is constructed and arranged to receive a sawblade or an osteotome. In another embodiment, the at least one opening is comprised of solid material but is radio-lucent. In yet another embodiment, the at least one opening is comprised of solid material and is frangible. ## Claims ### Claim 1 A tibial component comprising: a tibial tray with a superior side and a planar inferior side; a support member extending from the planar inferior side of the tibial tray, the support member having a stem portion extending from the planar inferior side of the tibial tray, the support member further including at least two arms that are angled relative to one another, each of the arms defining an opening; wherein the planar inferior side includes a porous coating including a plurality of protrusions, the plurality of protrusions occupying between 10% and 60% of an overall surface area of the planar inferior surface; wherein the tibial tray and the support member are monolithic; and wherein the at least two arms extend posteriorly and outwardly from a mid-point of the stem portion, and the at least two arms curve to connect to the inferior side of the tibial tray to form the openings. ### Claim 2 (depends on 1) The tibial component of claim 1, wherein the stem portion is angled relative to the planar inferior side of the tibial tray in an anterior-posterior direction. ### Claim 3 (depends on 1) The tibial component of claim 1, wherein a portion of each of the openings is defined by the stem portion. ### Claim 4 (depends on 1) The tibial component of claim 1, wherein each of the openings is defined in a porous structure. ### Claim 5 (depends on 4) The tibial component of claim 4, wherein each of the openings extends from the planar inferior side of the tibial tray such that the porous structure defining the openings is continuous with the porous coating formed on the planar inferior side of the tibial tray. ### Claim 6 (depends on 1) The tibial component of claim 1, wherein the openings are located adjacent the planar inferior side of the tibial tray. ### Claim 7 (depends on 1) The tibial component of claim 1, wherein the openings are spaced apart from the planar inferior side of the tibial tray. ### Claim 8 (depends on 1) The tibial component of claim 1, wherein the stem portion comprises an upper portion that is blended to the at least two arms. ### Claim 9 (depends on 1) The tibial component of claim 1, wherein the stem portion comprises a fluted portion. ### Claim 10 (depends on 1) The tibial component of claim 1, wherein the porous coating extends outward from the stem portion to an anterior, posterior, medial, and lateral periphery of the planar inferior side. ### Claim 11 A tibial component comprising: a tibial tray with a superior side and an inferior side; a support member extending from the inferior side of the tibial tray, the support member comprising: a stem portion extending from the inferior side of the tibial tray, wherein the stem portion is located anteriorly on the tibial tray, the stem portion has a proximal end and a distal end, and the proximal end is connected to the inferior side of the tibial tray; and at least two arms that are angled relative to one another, each of the arms defining an opening, wherein the openings are located adjacent the inferior side of the tibial tray and are spaced apart, the at least two arms extend posteriorly and outwardly from a mid-point of the stem portion, and the at least two arms curve to connect to the inferior side of the tibial tray to form the openings; wherein the stem portion comprises an upper portion that is blended to the at least two arms and wherein the inferior side includes a porous coating including a plurality of protrusions, the plurality of protrusions occupying between 10% and 60% of an overall surface area of the planar inferior surface. ### Claim 12 (depends on 11) The tibial component of claim 11, wherein the stem portion is angled relative to the inferior side of the tibial tray in an anterior-posterior direction. ### Claim 13 (depends on 11) The tibial component of claim 11, wherein a portion of each of the openings is defined by the stem portion. ### Claim 14 (depends on 11) The tibial component of claim 11, wherein the inferior side is planar. ### Claim 15 (depends on 11) The tibial component of claim 11, wherein the tibial tray and the support member are monolithic.