Tibial Bone Patents (Class 623/20.32)
  • Patent number: 10531959
    Abstract: A knee replacement, a kit for a knee replacement, and a method for performing a knee replacement are provided. A tibial fixed component of the knee replacement is configured to be permanently inserted into a resected tibia of a patient. A tibial modular component of the knee replacement is removably attachable to the tibial fixed component and has an upper surface to interface with a femoral component. The tibial modular component is removable from the tibial fixed component so that in the event that the fit of the knee replacement is not correct, the tibial modular component may be replaced with a differently sized tibial modular component without removing the tibial fixed component from the bone.
    Type: Grant
    Filed: March 28, 2019
    Date of Patent: January 14, 2020
    Inventors: Russell Nevins, David Backstein
  • Patent number: 10485668
    Abstract: A femoral component (101) for a knee prosthesis, the femoral component (101) comprising: a body portion (103) having: a lateral portion (109) and a medial portion (111) when in an implanted configuration, wherein a parasagittal plane is located at the intersection between the lateral portion (109) and the medial portion (111); and a patella track (105) extending anterior-posteriorly around the body portion (103), wherein the patella track (105) comprises a first patella track portion (105a) that is directed laterally away from the parasagittal plane as it extends towards a posterior end of the patella track (105).
    Type: Grant
    Filed: March 7, 2016
    Date of Patent: November 26, 2019
    Inventors: David Wycliffe Murray, Paul Monk
  • Patent number: 10383638
    Abstract: A computer assisted surgical system for guiding bone cutting operations of an arthroplasty surgery is provided. The computer assisted surgical system includes a cutting guide having a guiding surface for mounting to a bone and a computer. The computer is in communication with the cutting guide and configured to generate a bone model of the first bone without the use of pre-operative bone images, determine a position of an implant model having a bone interface surface on the bone model, determine a position of the cutting guide on the first bone based on the determined position of the implant model on the bone model, and position the guiding surface of the cutting guide to one of a plurality of predetermined cut configurations relative to the bone interface surface.
    Type: Grant
    Filed: November 9, 2016
    Date of Patent: August 20, 2019
    Assignee: OMNIlife science, Inc.
    Inventors: Edward J Cheal, George Cipolletti, David L Lasalle, Carl Knobloch, Christopher Plaskos
  • Patent number: 10282488
    Abstract: A patient-specific osteotomy guide according to the present disclosure includes a three-dimensional bone-engaging inner surface configured to closely mate and conform to a corresponding portion of a specific patient's tibia. A resection slot at a patient-specific position and orientation to guide a cutting tool to perform an osteotomy according to a preoperative plan for the patient. An axial guide at a patient-specific position and orientation to guide a tool to perform an ACL/PCL reconstructive procedure according to a preoperative plan for the patient.
    Type: Grant
    Filed: April 25, 2014
    Date of Patent: May 7, 2019
    Assignee: Biomet Manufacturing, LLC
    Inventor: Christopher Eash
  • Patent number: 10278827
    Abstract: According to one example, a tibial bearing component for articulation with a medial condyle and a lateral condyle of a femoral component in a knee replacement procedure is disclosed. The tibial bearing component can include a distal surface and an articular surface opposing the distal surface. The articular surface can include a medial compartment and a lateral compartment configured for articulation with the medial condyle and the lateral condyle of the femoral component, respectively. The lateral compartment can have a lateral articular track with a lateral anterior-posterior extent. The lateral articular track can comprise a plurality of distal-most points along a proximal surface of the lateral compartment that are contacted by the lateral condyle during rollback of the femoral component. The medial compartment can differ in configuration from the lateral compartment and can have an anterior lip height of between about 9 mm and about 13 mm.
    Type: Grant
    Filed: September 16, 2016
    Date of Patent: May 7, 2019
    Assignee: Zimmer, Inc.
    Inventors: Nick Drury, Jeff Blaylock, Stephen E. White, Calie B. Grey
  • Patent number: 10271954
    Abstract: Methods, techniques and apparatuses are disclosed including exemplary methods of performing a knee arthroplasty of the tibia. One exemplary method can include determining at least a depth of a distal fixation feature of a tibial implant, and forming a metaphyseal recess in a proximal portion of the tibia. The recess can be configured to receive the distal fixation feature therein and can be sized to exceed at least the depth of the distal fixation feature such that when a distal surface of the tibial implant contacts a proximal surface of the proximal portion of the tibia and the distal fixation feature is received in the metaphyseal recess, a gap remains between the distal fixation feature and one or more surfaces that form a portion of the metaphyseal recess.
    Type: Grant
    Filed: January 18, 2017
    Date of Patent: April 30, 2019
    Assignee: Zimmer, Inc.
    Inventors: Brian Edward Roach, Fred A. Wentorf, Amanda Szalkowski, Vanessa Croll, Tyler Bell
  • Patent number: 10271955
    Abstract: Surgical methods and tibial implants for accommodating the anterior cruciate ligament during unicompartmental or bi-unicompartmental knee arthroplasty procedures.
    Type: Grant
    Filed: February 8, 2017
    Date of Patent: April 30, 2019
    Assignee: Zimmer, Inc.
    Inventors: Robert Hodorek, Herve Windisch, Marc Bandi, Thomas Trachsler
  • Patent number: 10098748
    Abstract: Knee prosthesis includes a femoral component adapted to fit on a distal end of the femur and a tibial insert component. The femoral component includes a measured anterior/posterior dimension defined by the posterior condyle surface and the interior surface of the anterior flange and a distal peg provided on a distal bone facing surface of each of the lateral and medial condylar structures, wherein the distal pegs are positioned at a midpoint of the measured anterior/posterior dimension. The implant system provides two distinct sizing segments and the tibial insert has a medial tibial aspect ratio of 0.74 and a lateral tibial aspect ratio of 0.65 to 0.68 for all sizes.
    Type: Grant
    Filed: November 13, 2017
    Date of Patent: October 16, 2018
    Assignee: MicroPort Orthopedic Holdings Inc.
    Inventors: William J. Maloney, J. David Blaha, C. Lowry Barnes, John M. Green, David R. Tuttle
  • Patent number: 10034756
    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.
    Type: Grant
    Filed: August 15, 2011
    Date of Patent: July 31, 2018
    Assignee: Smith & Nephew, Inc.
    Inventor: Ryan Lloyd Landon
  • Patent number: 9949837
    Abstract: A method for removing a stem portion of an orthopedic implant from a bone comprises exposing an implanted orthopedic implant having a body portion, a stem portion interconnected to the body and a porous metal section forming an interconnection between the body and the stem portion. A cutting tool is mounted on a holder connected to an exposed surface of the orthopedic implant. The porous section is aligned with the cutting tool mounted on the holder. The entire porous section is cut by moving the cutting tool therethrough in a direction transverse to the stem portion axis. The implant body portion is then removed and then the stem portion is removed from the bone. The cutting tool may be a saw or chisel which may be mounted on a guide fixed to the body portion.
    Type: Grant
    Filed: March 7, 2013
    Date of Patent: April 24, 2018
    Assignee: Howmedica Osteonics Corp.
    Inventors: Aiguo Wang, Matthew P. Poggie, Nicholas Nai Guang Dong
  • Patent number: 9907655
    Abstract: A component of an artificial joint according to an exemplary aspect of the present disclosure includes, inter alia, a hollow tube including bone ingrowth material. Further, the hollow tube is selectively expandable. The bone ingrowth material allows the component to become biologically fixed to adjacent bone. Further, expansion of the hollow tube increases friction between the hollow tube and the adjacent bone, which increases stability.
    Type: Grant
    Filed: June 17, 2016
    Date of Patent: March 6, 2018
    Assignee: ARTHREX, INC.
    Inventors: Zachary Ingwer, Scott Sherman, Joel Zubizarreta
  • Patent number: 9861489
    Abstract: The invention relates to a knee prosthesis with a tibial part (1) that has concave or plane condylar bearing surfaces (2, 3). According to the invention, the lateral condylar bearing surface (2) merges into a preferably convex end portion (4) that falls away in the dorsal direction.
    Type: Grant
    Filed: September 7, 2007
    Date of Patent: January 9, 2018
    Inventor: Thomas Siebel
  • Patent number: 9839520
    Abstract: Provided is an artificial knee joint implant with which the balance between ligaments can be properly adjusted. An artificial knee joint implant includes a plurality of types of tibial plates-having tibia-side sliding faces that slide against femoral components and respectively having at least either the tibia-side sliding faces at different positions with respect to a tibia in a state where the tibial plates are fixed to a tibial tray attached to a tibia, or the tibia-side sliding faces in different shapes.
    Type: Grant
    Filed: June 26, 2014
    Date of Patent: December 12, 2017
    Assignee: KYOCERA CORPORATION
    Inventor: Tomoyuki Mizuguchi
  • Patent number: 9827106
    Abstract: A method of manufacturing a joint implant for a joint of a specific patient includes obtaining a three-dimensional image of a bone of the joint of the specific patient from medical imaging scans of the bone of the patient and determining on the three-dimensional image a resection plane for contacting a corresponding planar surface of the joint implant for the specific patient. The method includes determining a three-dimensional image of a porous structure of a bone layer along the resection plane from the medical imaging scans of the patient. The joint implant is manufactured with a layer of a patient-specific porous construct attached to the planar surface of the joint implant. The layer of the patient-specific porous construct substantially replicates the porous structure of the bone layer of the specific patient.
    Type: Grant
    Filed: November 18, 2015
    Date of Patent: November 28, 2017
    Assignee: Biomet Manufacturing, LLC
    Inventors: Erin L. Hensley, Duke A. Fox, Gautam Gupta
  • Patent number: 9801727
    Abstract: A tibial base plate for attaching to a resected surface at a proximal end of a tibia is provided. The tibial base plate includes a bridge, a pair of compartments and a stem. The bridge has a first contact surface sitting on the resected surface. The compartments are disposed at opposite sides of the bridge and extend in an anterior-posterior direction to form a notch to accommodate a tibial eminence. Each of the compartments has a second contact surface sitting on the resected surface. The stem is connected to the bridge and the compartments and inset into the proximal end of the tibia. The stem has an outer surface. The outer surface is canted towards the notch as insetting into the proximal end of the tibia. The stem is engaged with a cutting slot on the resected surface into the proximal end of the tibia.
    Type: Grant
    Filed: November 2, 2014
    Date of Patent: October 31, 2017
    Assignee: AOD Holdings, LLC
    Inventors: Thomas D. Ferro, Donald Lee, John Parks, Austin T. Ferro
  • Patent number: 9775711
    Abstract: An orthopedic prosthesis and a method for rapidly manufacturing the same are provided. The orthopedic prosthesis includes a solid bearing layer, a porous bone-ingrowth layer, and an interdigitating layer therebetween. A laser sintering technique is performed to manufacture the orthopedic prosthesis.
    Type: Grant
    Filed: February 25, 2015
    Date of Patent: October 3, 2017
    Assignee: Zimmer, Inc.
    Inventors: Jia Li, Adam M. Griner
  • Patent number: 9757242
    Abstract: A tibial implant system has an ultra-high molecular weight polyethylene tibial insert which can engage with either one of two tibial trays through differing means of engagement. The tibial insert includes a locking wire and locking tab disposed along an anterior surface and a locking recess disposed along a posterior surface. A first polymeric tibial tray includes a bead along an anterior wall and an undercut area along a posterior wall. A second metallic tibial tray includes a plurality of barbs along an anterior wall and an undercut area along a posterior wall.
    Type: Grant
    Filed: March 11, 2013
    Date of Patent: September 12, 2017
    Assignee: Howmedica Osteonics Corp.
    Inventors: Nicholas Nai Guang Dong, Matthew P. Poggie, Walter Schmidt
  • Patent number: 9655731
    Abstract: A cemented tibial prosthesis having a bone-contacting surface with a porous outer rim. With the bone-contacting surface seated against a resected proximal tibia, bone cement or another suitable adhesive will travel into the pores of the porous outer rim to enhance the connection between the tibial prosthesis and the tibia.
    Type: Grant
    Filed: August 25, 2010
    Date of Patent: May 23, 2017
    Assignee: Zimmer GmbH
    Inventors: Andrew J. Jukes, Rosemary E. Thompson, Jörg Zimmermann
  • Patent number: 9615887
    Abstract: A knee bone cut system and method is disclosed. The knee bone cut system supports cutting an anterior portion of a distal end of a femur. The system comprises a sensored insert, a femoral rotation guide, and a remote system to receive and display sensor data. The sensored insert provide data related to load magnitude, position of load, and leg position. The femoral rotation guide has moveable condyles to adjust condyle position in a rapid manner. A pinch mechanism and lock mechanism respectively move the condyles into contact with the sensored insert. Moreover, the femoral rotation guide can be loaded similar to a final installed insert over a range of motion. For example, the patella can be placed on the femoral rotation guide allowing the patella to load the sensored insert. The femoral insert guide includes guide holes that are used in conjunction with a bone cutting jig.
    Type: Grant
    Filed: September 13, 2013
    Date of Patent: April 11, 2017
    Assignee: ORTHOSENSOR INC.
    Inventors: Marc Stein, Martin Roche
  • Patent number: 9585615
    Abstract: A knee balancing system for measuring performance parameters associated with an orthopedic articular joint comprises a force sensing module and one or more inertial measurement units. The force sensing module comprises a housing that includes an articular surface having a medial portion and a lateral portion, each of which is substantially mechanically isolated from the other. The force sensing module also includes first and second sets of sensors disposed within the housing. The first set of sensors is mechanically coupled to the medial portion of the articular surface and configured to detect information indicative of a first force incident upon the medial portion of the articular surface. The second set of sensors is mechanically coupled to the lateral portion of the articular surface and configured to detect information indicative of a second force incident upon a lateral portion of the articular surface.
    Type: Grant
    Filed: September 21, 2015
    Date of Patent: March 7, 2017
    Assignee: MiRus LLC
    Inventors: Angad Singh, Philip Matthew Fitzsimons
  • Patent number: 9504576
    Abstract: An implantable device includes at least one solid structure having an external surface and a volume beneath the surface. One or more of a first conductor or set of conductors is disposed externally and/or internally on or within the structure and an array of elongate electrically conductive elements are disposed radially outwardly within the volume. A breach is detected when a conductive fluid intrudes into the volume through the surface.
    Type: Grant
    Filed: January 16, 2015
    Date of Patent: November 29, 2016
    Assignee: Sensurtec, Inc.
    Inventor: Richard D. Y. Chen
  • Patent number: 9408702
    Abstract: A tibial component for implantation at a resected tibia. The tibial component includes a medial tray, a lateral tray, and a connection member between the medial tray and the lateral tray. A first fastener extends from the medial tray to the connection member along a first pivot axle to pivotably couple the medial tray to the connection member. A second fastener is spaced apart from the first fastener and extends from the lateral tray to the connection member along a second pivot axle to pivotably couple the lateral tray to the connection member. The medial tray and the lateral tray are configured to pivot independently of one another with respect to the connection member.
    Type: Grant
    Filed: November 25, 2013
    Date of Patent: August 9, 2016
    Assignee: Biomet Manufacturing, LLC
    Inventor: Robert Metzger
  • Patent number: 9387085
    Abstract: Disclosed herein are tibial baseplates having a medial portion and a lateral portion, each of the medial and lateral portions having a proximal surface and a distal surface opposite the proximal surface. An intermediate portion joins the medial and lateral portions, wherein the intermediate portion has a proximal surface angled to the proximal surfaces of the medial and lateral portions about a longitudinal axis of the tibial baseplate. The proximal surface of the medial portion is stepped from the proximal surface of the lateral portion about the longitudinal axis. The proximal surfaces of the medial and lateral portions are configured to receive corresponding medial and lateral inserts.
    Type: Grant
    Filed: May 30, 2014
    Date of Patent: July 12, 2016
    Assignee: Stryker Corporation
    Inventors: Robert Davignon, Michael C. Ferko, Stuart L. Axelson, Jr.
  • Patent number: 9314343
    Abstract: An orthopaedic tibial prosthesis includes a tibial baseplate sized and shaped to cover substantially all of a resected proximal tibial surface, and a tibial bearing component sized to leave a posteromedial portion of the tibial baseplate exposed when the tibial bearing component is mounted to the baseplate. The exposed posteromedial portion of the tibial baseplate includes a chamfered profile which cooperates with a correspondingly chamfered profile at a posteromedial edge of the tibial bearing component to create a substantially continuous chamfer extending from the resected tibial surface to the medial articular surface of the tibial bearing component. Advantageously, this chamfer leaves an absence of material (i.e., a relief or void) at the posteromedial edge of the tibial prosthesis, thereby enabling deep flexion of the prosthesis without impingement between the tibial prosthesis and adjacent anatomic tissues or prosthetic structures.
    Type: Grant
    Filed: September 24, 2013
    Date of Patent: April 19, 2016
    Assignee: Zimmer, Inc.
    Inventors: Raymond C. Parisi, Katherine M. Rettig, Jeff Blaylock
  • Patent number: 9271840
    Abstract: A tibial component for use in conjunction with a knee replacement surgery. An inferior surface of the tibial component may be concave to thereby improve bonding between the tibial component and a tibia. The tibial component may produce low stress in the cement mantle during in-vivo loading. A stem extending from the inferior surface of the tibial component may include an anterior curvature to facilitate the use of minimally evasive surgical techniques. The stem may further include medial-lateral wing portions with a posterior curvature to provide improved support.
    Type: Grant
    Filed: January 9, 2012
    Date of Patent: March 1, 2016
    Inventors: John Keggi, Louis Keppler, Timothy McTighe, Declan Brazil, Carl Knobloch
  • Patent number: 9265613
    Abstract: A cementless orthopedic implant is disclosed. More specifically, but not necessarily entirely, a cementless tibial implant used as a component of a knee joint is disclosed. The tibial component may comprise a tibial tray and stem. The tibial component may be a monoblock design used for both primary and revision surgeries. The stem of the tibial component may comprise a plurality of protruding steps that assist in providing primary fixation and stability without the use of screws or cement. The stem of the tibial component may further comprise a first and second stepped wing portions.
    Type: Grant
    Filed: September 24, 2013
    Date of Patent: February 23, 2016
    Inventor: Russell Nevins
  • Patent number: 9149206
    Abstract: Tibial prosthesis systems for implantation or use in a knee joint are disclosed. A tibial prosthesis system can include a bearing component, a base component, a shim component, and optionally a spacer component. The shim or spacer component can be inserted between an inferior surface of the bearing component and a superior surface of the base component. The insertion of the shim or spacer component can provide spacing adjustment between the bearing and base components. The shim component can include one or both of a medial edge having a different height than a lateral edge or an anterior edge having a different height than a posterior edge. The differing edge height of the shim component can provide a surgeon with knee joint kinematic insight regarding an angled bone cut before the cut is made, and can allow for sizing of an appropriately permanent prosthesis system using a reduced number of provisional components.
    Type: Grant
    Filed: March 15, 2013
    Date of Patent: October 6, 2015
    Assignee: Zimmer, Inc.
    Inventors: Jody Claypool, Wayne Paprosky, David Lewallen, Steven Stump, Stephen E. White
  • Patent number: 9119733
    Abstract: A prosthetic component suitable for trialing or long-term implantation is provided. The prosthetic component includes at least one sensor for measuring a parameter of the muscular-skeletal system or a biological parameter is disclosed. The prosthetic component comprises a conductive material. Electronic circuitry and sensors are housed within the prosthetic component. Data from the prosthetic component can be transmitted to a remote system. The prosthetic component can comprise steel, titanium, cobalt, an alloy, or other conductive material. At least a portion of the conductive material comprising the prosthetic component is coupled to ground to shield the sensor from parasitic coupling that can affect measurement accuracy. The prosthetic component can have an opening in the shield to allow sensing or transmission of data.
    Type: Grant
    Filed: June 5, 2013
    Date of Patent: September 1, 2015
    Assignee: ORTHOSENSOR INC.
    Inventors: Marc Stein, Andrew Chase
  • Patent number: 9113920
    Abstract: A method and apparatus for performing an open wedge osteotomy utilizing a keyed, wedge-shaped implant for disposition in a keyed, wedge-shaped opening created in a bone. The keys may be disposed in vertical or horizontal arrangements. In addition, a shear rib key hole may be formed adjacent the wedge-shaped opening in the bone.
    Type: Grant
    Filed: December 2, 2013
    Date of Patent: August 25, 2015
    Assignee: Arthrex, Inc.
    Inventors: Kelly Ammann, Vincent P. Novak, Robert Schneider, Ralph E. Burns, Annunziato Amendola
  • Patent number: 9101478
    Abstract: Systems and methods for providing deeper knee flexion capabilities, more physiologic load bearing and improved patellar tracking for knee prosthesis patients. In some instances, such systems and methods include a tibial component for replacing at least a portion of a proximal portion of a tibia. While the tibial component can include a variety of characteristics, in some cases, it includes a tibial articular surface, an undersurface, and a stem that extends from the undersurface. In some cases, this stem is configured to contact an inner surface of an anterior cortex of the tibia when the stem is inserted into the tibia and the undersurface of the tibial component is in contact with a cut surface of the tibia. Other implementations are also described.
    Type: Grant
    Filed: February 4, 2013
    Date of Patent: August 11, 2015
    Inventors: Kent M. Samuelson, Connor E. Samuelson
  • Patent number: 9095453
    Abstract: A trial system for an implantable joint replacement includes a guide assembly having a baseplate and a guide plate, the guide plate rotatable relative to the base plate about a rotation axis extending through the guide plate and the baseplate while directly connected to the baseplate. An adjustment mechanism is actuable to selectively control the rotational juxtaposition of the guide plate relative to the baseplate. The rotation axis may be medially offset from the center of the guide assembly. A single instrument may be used to rotate the guide plate relative to the base plate and lock the plates in the selected juxtaposition. The guide plate provides in situ positionable cutting guidance for implantation of prosthetic joint components. The system may further include an articulating insert trial mounted on the guide assembly to determine preferred joint alignment and/or optimal positioning of the guide plate.
    Type: Grant
    Filed: November 18, 2010
    Date of Patent: August 4, 2015
    Inventors: Michael D. Ries, Mark J Mooradian
  • Publication number: 20150142123
    Abstract: A knee prosthesis including a knee component and an indexing boss. The knee component includes a first engagement portion. The indexing boss includes a first terminal end surface, a second terminal end surface, and a second engagement portion at the second terminal end surface. The first terminal end surface and the second terminal end surface are arranged along non-parallel planes. The first and the second engagement portions are configured to selectively couple together at a plurality of rotational orientations to attain a corresponding plurality of angular orientations of the indexing boss relative to the knee component due to the first and the second terminal end surfaces being arranged along non-parallel planes.
    Type: Application
    Filed: January 21, 2015
    Publication date: May 21, 2015
    Inventor: Curt Collard
  • Publication number: 20150134069
    Abstract: The invention concerns a tibial prosthetic component comprising a plate (100) for forming a tibial plateau of a tibia (16), wherein a peripheral region of the plate (100) has a thickness of less than 3 mm. The invention also concerns a tibial prosthetic component having a keel of depth less than 9 mm. The invention also concerns a method of selecting a tibial prosthetic component comprising receiving measurements of at least one physical attribute of an individual into whom the tibial prosthetic component is to be implanted, selecting a thickness of a plate (100) and depth of keel of the tibial prosthetic component based on the measurements and providing a tibial prosthetic component comprising a plate (100) having the selected thickness and a keel having the selected depth.
    Type: Application
    Filed: November 7, 2014
    Publication date: May 14, 2015
    Inventors: John Goodfellow, John O'Connor, Chris Dodd, David Murray
  • Publication number: 20150134070
    Abstract: Orthopaedic surgical instruments including a base trial adapted to be positioned on a proximal end of a patient's resected tibia, and a guide tower including a tower base adapted to be positioned on the base trial. A method of use is also described.
    Type: Application
    Filed: January 26, 2015
    Publication date: May 14, 2015
    Inventors: David W. Waite, II, Scott M. Thomas, Duncan G. Young, Matthew S. Wallace, Duncan J. Beedall
  • Patent number: 9017414
    Abstract: Disclosed is a trial implant having a body and a tab. The body may include a recess and may be sized to closely approximate a permanent implant. The tab may be more durable than the body, and may be disposed within the body and wholly contained within the recess. Also disclosed is a method of performing a trialing procedure including providing a trial implant as described, providing a tool to attach to the tab, inserting the implant onto a resected joint, evaluating and extracting the implant. The same procedure may then be performed with a second implant. The method may further include a tool having an attachment portion that is substantially or wholly contained within the recess. A kit is disclosed including a plurality of trial implants of incrementally different shapes and sizes. The kit may further include a tool. Also disclosed is a method of making the described implant.
    Type: Grant
    Filed: November 18, 2008
    Date of Patent: April 28, 2015
    Assignee: Howmedica Osteonics Corp.
    Inventors: John Jude Grecco, Troy Allen McMillen
  • Patent number: 9011444
    Abstract: Disclosed herein are systems and methods for shaping bone voids during revision procedures of total knee replacements. The systems disclosed herein generally include a cannulated reamer assembly, a reaming guide assembly, a guide tube assembly, a trial stem assembly, and an optional insertion/removal tool. Metaphyseal reconstruction devices can be used to fill the bone voids in conjunction with the systems and methods disclosed herein.
    Type: Grant
    Filed: December 7, 2012
    Date of Patent: April 21, 2015
    Assignee: Howmedica Osteonics Corp.
    Inventors: Steven Primiano, Damon J. Servidio, Mark Mooradian, Jeffery Arnett
  • Patent number: 9005300
    Abstract: A tibial implant includes a baseplate having a proximally facing surface surrounded at least in part by a proximally extending wall. The wall has a ramp surface extending from the wall towards the baseplate proximally facing baseplate surface and a bore located distally of the ramp. A polyethylene bearing insert is mounted on the baseplate and has a distally facing surface engaging the proximally facing surface of the baseplate. The distally facing bearing insert surface has a recess and the insert has a side surface with a passageway extending from the recess through the insert side surface. A spring detent is mounted in the bearing insert recess and has a moveable pin biased outwardly of the bearing insert side surface and into the bore of the baseplate.
    Type: Grant
    Filed: August 29, 2012
    Date of Patent: April 14, 2015
    Assignee: Howmedica Osteonics Corp.
    Inventor: Carlos E. Collazo
  • Patent number: 8998998
    Abstract: A method for treating arthritis of a joint includes identifying a bone lesion in a bone adjacent to the joint; and implanting in the bone a reinforcing member in or adjacent to the bone lesion. A kit for conducting the method includes: (a) at least one reinforcing member having a proximal face adapted to face the joint, a distal face adapted to face away from the joint, and a wedge-shaped edge adapted to pierce bone, wherein the at least one reinforcing member is planar and sterile; and (b) a container adapted to maintain the at least one reinforcing member sterile. Another kit includes: (a) a sterile fluid; (b) a syringe for injecting the fluid into a bone; (c) a curing agent adapted to cure the fluid to polymerize and/or cross-link; and (d) a container adapted to maintain the sterility of contents of the container.
    Type: Grant
    Filed: December 23, 2013
    Date of Patent: April 7, 2015
    Assignee: Zimmer Knee Creations, Inc.
    Inventors: Peter F. Sharkey, Charles F. Leinberry
  • Patent number: 8998996
    Abstract: A modular knee prosthesis system includes a femoral component having a stem and a sleeve. The system is modular, and provides the surgeon with the option of distally offsetting the joint line by controlling the relative axial positions of the stem and the sleeve. Alternative options include providing sleeves with tapered bores of different diameters, providing a shim to be placed between the sleeve and the stem and providing the stems as adapters having different diameters.
    Type: Grant
    Filed: March 15, 2013
    Date of Patent: April 7, 2015
    Assignee: Depuy (Ireland)
    Inventors: Peter J James, Richard E Jones, Benjamin J Sordelet, Timothy G Vendrely, Stephanie M Wainscott
  • Publication number: 20150088264
    Abstract: Embodiments of the invention provide knee prostheses which more faithfully and closely replicate the function, anatomy and physiology of the normal human knee yielding a number of advantages. Among other things, such prostheses can provide an increased range of motion and function more normally particularly in extension, deep flexion and during normal gait. Knee prostheses according to various aspects of the invention recognize that during movement of the knee, particularly during flexion, the kinematics of the bones of the knee are a result of achieving equilibrium of the forces that cause motion of the knee. In addition, the shape of the articular surfaces acting in combination with forces imposed by various muscles, ligaments and tendons, determines the direction of the large contact forces.
    Type: Application
    Filed: November 21, 2014
    Publication date: March 26, 2015
    Applicant: The General Hospital Corporation
    Inventors: Guoan Li, Harry E. Rubash, Kartik Mangudi Varadarajan
  • Publication number: 20150088265
    Abstract: Certain embodiments generally provide an improved tibial base member comprising keel portions that allow one or both cruciate ligaments to be preserved. Other embodiments provide improved lateral and/or medial inserts having a mesial lip that helps relieve and/or prevent impingement between the femoral component and the tibial eminence. Other embodiments provide improved femoral components having various chamfers to provide additional clearance with respect to the tibial eminence and posterior cruciate ligament without decreasing bone coverage.
    Type: Application
    Filed: December 1, 2014
    Publication date: March 26, 2015
    Applicant: SMITH & NEPHEW, INC.
    Inventors: Nathaniel Milton Lenz, Richard Michael Smith, Zachary Christopher Wilkinson, Brian William McKinnon, Abraham Biglari Salehi, Jonathan Kirk Nielsen, Michael D. Ries, Gerald J. Jerry
  • Publication number: 20150081029
    Abstract: Improved implants, systems, tools and related methods for bi-cruciate retaining joint treatment are disclosed, including patient-adapted implants, systems, tools, and methods.
    Type: Application
    Filed: April 6, 2013
    Publication date: March 19, 2015
    Inventors: Raymond A. Bojarski, Philipp Lang, John Slamin, Terrance Wong
  • Publication number: 20150081030
    Abstract: A tibial support structure includes a platform portion and a medullary portion that are monolithically formed as a single piece. The medullary and platform portions of the augment component are adapted to accommodate and mechanically attach to a tibial baseplate, and are individually shaped and sized to replace damaged bone stock both within the tibia, as well at the tibial proximal surface. The monolithic formation of the tibial support structure provides a strong and stable foundation for a tibial baseplate and facilitates restoration of the anatomic joint line, even where substantial resections of the proximal tibia have been made. The tibial support structure may be made of a bone-ingrowth material which facilitates preservation and rebuilding of the proximal tibia after implantation, while also preserving the restored joint line by allowing revision surgeries to be performed without removal of the tibial support structure.
    Type: Application
    Filed: November 21, 2014
    Publication date: March 19, 2015
    Inventors: Ray Zubok, Jorge Montoya, Timothy A. Hoeman, John Chernosky, Keith A. Roby
  • Patent number: 8979936
    Abstract: An orthopedic implant includes a first portion including at least one feature modified to be patient-specific and match the anatomy of a specific patient from a three-dimensional digital image of a patient's joint using computer modeling. The orthopedic implant includes a non-custom inner bone-engaging surface including a plurality of planar surfaces configured for engagement with non-custom bone cuts.
    Type: Grant
    Filed: June 21, 2013
    Date of Patent: March 17, 2015
    Assignee: Biomet Manufacturing, LLC
    Inventors: John R. White, Robert Metzger, Keith R. Berend
  • Publication number: 20150066150
    Abstract: Methods are disclosed for designing a tibial implant to minimize cortical impingement of a keel or other fixation structure when the tibial implant is implanted in the tibia bone. The design of the keel or other fixation structure on the tibial baseplate can be based on determining a common area between defined cancellous regions of at least two tibia bones. Methods are disclosed for designing a femoral component having a stem extension such that the stem can be sufficiently placed in the diaphysis of the femur when the femoral component is implanted. The method includes determining a canal axis in a femur that creates adequate engagement between a reamer and the diaphysis of the femur.
    Type: Application
    Filed: August 28, 2014
    Publication date: March 5, 2015
    Inventors: Yifei Dai, Christine Schaerer, Dwight Todd, Jeffrey E. Bischoff, Adam D. Henderson
  • Patent number: 8968413
    Abstract: A tibial orthopaedic prosthesis assembly for use during performance of a knee replacement procedure includes one or more tibial augments configured to be coupled to a tibial tray. Each tibial augment includes an exterior side surface of varying angulation relative to a top surface of the tibial augment.
    Type: Grant
    Filed: March 14, 2013
    Date of Patent: March 3, 2015
    Assignee: DePuy (Ireland)
    Inventors: Michael A. Cook, Stephanie M. Wainscott, Tyler S. Hathaway, Joseph G. Wyss
  • Patent number: 8968412
    Abstract: An orthopaedic surgical instrument system that includes an orthopaedic surgical instrument adapted to be positioned on a proximal end of a patient's tibia, and a tibial bearing trial assembly configured to be coupled to the orthopaedic surgical instrument. The tibial bearing trial assembly includes a plurality of tibial bearing surface trial components and at least one shim.
    Type: Grant
    Filed: June 22, 2012
    Date of Patent: March 3, 2015
    Assignee: DePuy (Ireland)
    Inventors: Thomas E. Wogoman, Jon M. Edwards, Duncan G. Young, Liam T. Dower, Rusty T. Meier, David W. Waite, II, Rebecca L. Chaney, Michael J. Rock, Matthew S. Wallace, Scott M. Thomas
  • Publication number: 20150057759
    Abstract: A method and apparatus for correcting varus deformity comprises cutting a horizontal slot in the upper medial portion of the tibia. The slot is opened by the application of external force and a wedge is inserted to maintain the opening. The opening of the slot corrects the position and orientation of the deformed medial plateau.
    Type: Application
    Filed: August 12, 2014
    Publication date: February 26, 2015
    Applicant: New York University
    Inventor: Peter Stanley Walker
  • Publication number: 20150057758
    Abstract: A dynamic trialing method generally allows a surgeon to perform a preliminary bone resection on the distal femur according to a curved or planar resection profile. With the curved resection profile, the distal-posterior femoral condyles may act as a femoral trial component after the preliminary bone resection. This may eliminate the need for a separate femoral trial component, reducing the cost and complexity of surgery. With the planar resection profile, shims or skid-like inserts that correlate to the distal-posterior condyles of the final insert may be attached to the distal femur after the preliminary bone resection to facilitate intraoperative trialing. The method and related components may also provide the ability of a surgeon to perform iterative intraoperative kinematic analysis and gap balancing, providing the surgeon the ability to perform necessary ligament and/or other soft tissue releases and fine tune the final implant positions based on data acquired during the surgery.
    Type: Application
    Filed: August 23, 2013
    Publication date: February 26, 2015
    Applicant: Stryker Corporation
    Inventors: Stuart L. Axelson, JR., Emily Hampp, John R. Fossez
  • Publication number: 20150057760
    Abstract: A tibial tuberosity advancement implant and method includes a spacer body made of biocompatible, biodegradable material and having a main section with at least one bony growth orifice therethrough and at least one fin extending from the main section by at least one connector. A metal clip is engageable with of the spacer body main section and includes spaced screw holes for securing the spacer body to the advanced tibial tuberosity and the tibia when the implant is placed in the space between the advanced tibial tuberosity and the tibia.
    Type: Application
    Filed: November 4, 2014
    Publication date: February 26, 2015
    Inventors: Andrew J. Kazanovicz, David J. Anderson, III