WO2016114880A1 - Chevilles d'implant glénoïde ayant des éléments de remplissage - Google Patents

Chevilles d'implant glénoïde ayant des éléments de remplissage Download PDF

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Publication number
WO2016114880A1
WO2016114880A1 PCT/US2015/065185 US2015065185W WO2016114880A1 WO 2016114880 A1 WO2016114880 A1 WO 2016114880A1 US 2015065185 W US2015065185 W US 2015065185W WO 2016114880 A1 WO2016114880 A1 WO 2016114880A1
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WO
WIPO (PCT)
Prior art keywords
projection
rib
stem
implant
bone
Prior art date
Application number
PCT/US2015/065185
Other languages
English (en)
Inventor
Andrew Hopkins
Philippe Favre
Original Assignee
Zimmer, Inc.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Zimmer, Inc. filed Critical Zimmer, Inc.
Publication of WO2016114880A1 publication Critical patent/WO2016114880A1/fr

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Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • 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
    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02—Prostheses implantable into the body
    • A61F2/30—Joints
    • A61F2/40—Joints for shoulders
    • A61F2/4081—Glenoid components, e.g. cups
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • 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
    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02—Prostheses implantable into the body
    • A61F2/30—Joints
    • A61F2/30767—Special external or bone-contacting surface, e.g. coating for improving bone ingrowth
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • 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
    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02—Prostheses implantable into the body
    • A61F2/30—Joints
    • A61F2/30721—Accessories
    • A61F2/30724—Spacers for centering an implant in a bone cavity, e.g. in a cement-receiving cavity
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • 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
    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02—Prostheses implantable into the body
    • A61F2/30—Joints
    • A61F2/40—Joints for shoulders
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • 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
    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02—Prostheses implantable into the body
    • A61F2/30—Joints
    • A61F2/30767—Special external or bone-contacting surface, e.g. coating for improving bone ingrowth
    • A61F2/30771—Special external or bone-contacting surface, e.g. coating for improving bone ingrowth applied in original prostheses, e.g. holes or grooves
    • A61F2002/3082—Grooves
    • A61F2002/30822—Circumferential grooves
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • 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
    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02—Prostheses implantable into the body
    • A61F2/30—Joints
    • A61F2/30767—Special external or bone-contacting surface, e.g. coating for improving bone ingrowth
    • A61F2/30771—Special external or bone-contacting surface, e.g. coating for improving bone ingrowth applied in original prostheses, e.g. holes or grooves
    • A61F2002/30878—Special external or bone-contacting surface, e.g. coating for improving bone ingrowth applied in original prostheses, e.g. holes or grooves with non-sharp protrusions, for instance contacting the bone for anchoring, e.g. keels, pegs, pins, posts, shanks, stems, struts
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • 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
    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02—Prostheses implantable into the body
    • A61F2/30—Joints
    • A61F2/30767—Special external or bone-contacting surface, e.g. coating for improving bone ingrowth
    • A61F2/30771—Special external or bone-contacting surface, e.g. coating for improving bone ingrowth applied in original prostheses, e.g. holes or grooves
    • A61F2002/30878—Special external or bone-contacting surface, e.g. coating for improving bone ingrowth applied in original prostheses, e.g. holes or grooves with non-sharp protrusions, for instance contacting the bone for anchoring, e.g. keels, pegs, pins, posts, shanks, stems, struts
    • A61F2002/30879—Ribs
    • A61F2002/30881—Circumferential ribs, flanges or fins
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • 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
    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02—Prostheses implantable into the body
    • A61F2/30—Joints
    • A61F2/30767—Special external or bone-contacting surface, e.g. coating for improving bone ingrowth
    • A61F2/30771—Special external or bone-contacting surface, e.g. coating for improving bone ingrowth applied in original prostheses, e.g. holes or grooves
    • A61F2002/30878—Special external or bone-contacting surface, e.g. coating for improving bone ingrowth applied in original prostheses, e.g. holes or grooves with non-sharp protrusions, for instance contacting the bone for anchoring, e.g. keels, pegs, pins, posts, shanks, stems, struts
    • A61F2002/30891—Plurality of protrusions
    • A61F2002/30892—Plurality of protrusions parallel
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • 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
    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02—Prostheses implantable into the body
    • A61F2/30—Joints
    • A61F2/46—Special tools or methods for implanting or extracting artificial joints, accessories, bone grafts or substitutes, or particular adaptations therefor
    • A61F2002/4631—Special tools or methods for implanting or extracting artificial joints, accessories, bone grafts or substitutes, or particular adaptations therefor the prosthesis being specially adapted for being cemented

Definitions

  • the present patent application relates to surgical implants, and more particularly, to features on surgical implants that allow bone cement and/or other fixation materials to surround portions of the implant upon implantation.
  • Surgical implants are utilized to treat a wide range of bodily injuries, maladies, and conditions.
  • orthopedic implants are used to replace or augment bod
  • Orthopedic implants include spinal implants, dental implants, artificial shoulders, knees, hips, and ankle joints.
  • Various trauma related implants can be utilized to help stabilize and treat a patient. Examples of trauma related implants include screws, nails, fixation systems, plate systems, etc.
  • Orthopedic implants have been developed for the shoulder joint.
  • the proximal humerus is generally ball-shaped, and articulates within a socket formed by the scapula, called the glenoid, to form the shoulder joint.
  • Implant systems for the total replacement of the shoulder joint i.e., a total shoulder arthroplasty, generally replicate the natural anatomy of the shoulder, and typically include a humeral component having a stem which fits within the humeral canal, and an articulating head which articulates within the socket of a glenoid component implanted within the glenoid of the scapula.
  • Reverse type implant systems have been developed in which the conventional ball-and-socket configuration that replicates the natural anatomy of the shoulder is reversed, such that a concave recessed articulating component is provided at the proximal end of the humeral component that articulates against a convex portion of the glenoid component.
  • Partial shoulder arthroplasty to replace the proximal humerus or the glenoid is also known.
  • fixation aiding projections used by some surgical implants can have ribs, fins and/or similar features that can interfere with the dispersion of bone cement and/or other fixation materials about portions of the project! on(s). This can result in the undesirable dispersion of the fixation material.
  • some amount of bone cement can be inadvertently forced deeper into a bone aperture that receives the projection by rib(s) disposed along the implant's projection rather than being distributed at least partially around and along a length of the projection within the aperture.
  • the undesirable dispersion of fixation material can result in voids, areas of undesirably thin or thick fixation material, loss of fixation material, and in the shifting of the surgical implant after insertion, etc.
  • the surgeon may have to maintain pressure on the implant for a period of time while the fixation material cures to avoid shifting of the implant. Having the surgeon hold the implant can slow surgery time and decrease surgeon efficiency.
  • portions of the implant's projections e.g., the ribs
  • one or more ribs of the project! on(s) can be provided with one or more features such as passages that can be adapted to allow bone cement and/or other fixation materials to pass through and/or around the ribs.
  • Surgical implants with one or more examples of such features are described herein in reference to a glenoid implant component of an artificial shoulder, however features such as those described and can be used, for example, in various orthopedic implants (including artificial hips, knees, ankles, elbows), trauma implants (including bone plates, intramedullary rods, etc.) and oncology and/or reconstructive systems (including limb salvage systems, severe bone loss systems, etc.).
  • orthopedic implants including artificial hips, knees, ankles, elbows
  • trauma implants including bone plates, intramedullary rods, etc.
  • oncology and/or reconstructive systems including limb salvage systems, severe bone loss systems, etc.
  • the examples provided are described in reference to a traditional total shoulder implant system using projections such as pegs, further examples using the disclosed channel features are contemplated for reverse, partial, defect repair, etc. shoulder implant systems.
  • the channel features can be used in conjunction with a glenoid having a raised articular geometry (e.g., as used in a defect repair case).
  • further contemplated examples can include glenoid components with a keeled prqjection(s) having channel features rather than the projection/peg design described herein.
  • a surgical implant can comprise a main body portion and a proj ection.
  • the projection can have a stem extending from the main body portion and can be adapted for insertion into bone of a patient.
  • the projection can include at least one rib extending outwardly from and disposed about at least a portion of the stem.
  • the rib can have one or more features adapted to al low a fixation material to pass the rib and can be disposed adj acent the stem upon insertion of the proj ection.
  • Example 2 implant of Example 1, wherein the rib can comprise a plurality of ribs. Each of the ribs can be spaced from one another along an axial length of the stem. The features can be adapted to allow dispersion of the fixation materi al between the ribs and along at least a portion of the stem.
  • Example 3 the implant of any one or any combination of Examples 1 or 2, wherein the features can comprise one or more passages and the passages can be defined by the ribs and can extend from an outermost peripheral edge of the rib to adjacent the stem.
  • Example 4 the implant of Example 3, wherein the passages can be
  • the passages can be generally align along the axial length of the stem.
  • Example 5 the implant of any one or any combination of Examples 3 to 4, wherein the passages can have substantially a semicircular cross-sectional shape and can be defined by a second peripheral edge of the rib.
  • Example 6 the implant of any one or any combination of Examples 3 to 5, wherein the passages can comprise four passages.
  • Example 7 the implant of any one or any combination of Examples 2 to 6, wherein the plurality of ribs can comprise three to five ribs.
  • Example 8 the implant of any one or any combination of Examples 1 to 7, can further comprise a second projection having a stem extending from the main body portion, and a third projection having a stem extending from the main body portion, wherein the second projection and the third projection can be spaced apart from the projection with the at least one rib in substantially opposite directions such that the projection, the second projection, and the third projection can be substantially aligned with respect to one another.
  • Example 9 the implant of Example 8, wherein the second projection and third projection can lack ribs and wherein at least one surface of the main body portion, the stem, the second projection, and the third projection can be formed of a porous metal material that is adapted to induce ingrowth of bone therein.
  • the implant of any one or any combination of Examples 1 to 7, can further comprise a second projection having a stem extending from the main body portion and adapted for insertion into bone of a patient, the second projection can include at least one rib extending outwardly from and disposed about at least a portion of the stem, wherein the rib can have one or more features adapted to allow a fixation material to pass the rib and be disposed adjacent the stem upon insertion of the second projection, and wherein the projection can be disposed adjacent a first end of the main body portion and the second projection can be disposed adjacent a second opposing end of the main body portion.
  • Example 1 1 the implant of any one or any combination of Examples 1 to 10, wherein the implant can comprise a glenoid component and the bone can comprise a scapula, and wherein the main body portion can include a first surface adapted to contact a glenoid surface of the scapula and a second surface can be configured to receive a head portion of a humeral component or a humerus.
  • Example 12 the implant of any one or any combination of Examples 1 to 11, wherein the at least one rib can be adapted to interfere with the bone and deform upon insertion of the projection and wherein the one or more features comprise passages between the bone and the stem that allow for dispersion of the fixation material around at least a portion of the at least one rib or stem.
  • a surgical method is disclosed. The surgical method can comprise forming an aperture in a bone of a patient, disposing a fixation material in the aperture, inserting an orthopedic implant having a rib with a channel into the aperture and fixation materi al, the channel adapted to facilitate a backfill of the fixation material around at least a portion of the orthopedic implant, and curing the fixation material.
  • Example 14 the method of Example 13, wherein the channel can comprise a plurality of channels and the rib can comprise a plurality of ribs, and wherein the channels can generally align along an axial length of the orthopedic implant.
  • Example 15 the method of any one or any combination of Examples 13 to 14, can further comprise securing at least a second projection to the bone to prevent movement of the orthopedic implant relative to the bone.
  • Example 16 the method of any one or any combination of Examples 13 to 15, wherein the implant comprises a glenoid component and the bone comprises a scapula.
  • a system for a shoulder arthroplasty can comprise a humeral component, a head, and a glenoid component.
  • the humeral component can be configured to be disposed in a humeral canal of a patient.
  • the head can be adapted to be coupled to the humeral component.
  • the glenoid component can be configured to provide an articulating surface for the head.
  • the glenoid component can include a projection having at least one rib extending outwardly therefrom, and the rib can form one or more channels adapted to allow a fixation material to pass the rib upon insertion of the projection into an aperture in the scapula.
  • Example 18 the system of Example 17, wherein the channels can be defined by the rib and can extend from an outermost peripheral edge of the rib to adjacent the stem.
  • Example 19 the implant of Example 18, wherein the channels can be are symmetrically spaced with respect to the stem, and the channels can generally align along the axial length of the projection.
  • Example 20 the system of any one or any combination of Examples 16 to 19, wherein the channels can have substantially a semicircular cross-sectional shape and can be defined by a second peripheral edge of the rib.
  • Example 21 the apparatus, system, or method of any one or any combination of Examples 1-20 can optionally be configured such that all elements or options recited are available to use or select from.
  • FIG. 1A is a perspective view of a surgical implant that can be used in a total shoulder arthroplasty, including a humeral component and a glenoid component attached to the humerus and scapula of a patient, according to an exampl e of the present application
  • FIG. IB is a perspective view of the humeral component, a head, and the glenoid component of FIG, 1A exploded from one another.
  • FIG. 2 is a perspective view of a glenoid component with projections having features according to an example of the present application.
  • FIG. 2A is a plan view of the glenoid component of FIG, 2.
  • FIG. 3 is a plan view of the glenoid component of FIGS. 2 and 2A with projections disposed in a fixation material according to an example of the present invention.
  • FIG. 4 is a perspective view of a glenoid component with projections having features according to another example of the present application.
  • FIG. 4A is a plan view of the glenoid component of FIG. 4.
  • FIG. 5 is a flow diagram of a method that utilizes implant having a rib with a channel according to an example of the present application.
  • a surgical implant can include a main body portion and a projection.
  • the projection can have a stem extending from the main body portion and can be adapted for insertion into bone of a patient.
  • the projection can include at least one rib extending outwardly from and disposed about at least a portion of the stem.
  • the rib can have one or more features adapted to allow a fixation material to pass the rib (either by ⁇ passing through and/or around) and be disposed adjacent the stem (and/or other portions of the rib) upon insertion of the projection.
  • the implant can comprise a glenoid component for use in a shoulder arthroplasty. Further methods and systems are disclosed.
  • FIGS, 1 A and IB show a shoulder system 100 that can comprise a humeral component 102, a head 04, and a glenoid component 106.
  • the shoulder system 100 can be for a total shoulder arthroplasty as illustrated in FIG. 1 A, which typically includes the humeral component 102 having a stem which fits within the humeral canal of a humerus 108, the head 104, which can be coupled to the humeral component 102 and articulates within the socket of the glenoid component 106.
  • the glenoid component 106 can be implanted within the glenoid of a scapula 1 10 (FIG. 1 A).
  • the system can be for a partial replacement of only the glenoid component of the shoulder joint.
  • Further examples can be used for a reverse shoulder arthroplasty where a concave recessed articulating component is provided at the proximal end of the humeral component. This component articulates with a convex surface of the glenoid component.
  • the humeral component 102 can include a stem 1 12 configured to be secured to at least one bone of a patient such as within the humeral canal of humerus 108.
  • the stem 1 12 can be received in the prepared canal of the humerus 108 and can be inserted therein by surgical instruments such as impactor, etc.
  • the proximal end of the humerus 108 can be resected and the humeral canal and proximal humeral end can be prepared using known instruments (reamers, rasps, etc) and methods.
  • the head 104 can seat against the resected surface of the humerus 108 and simulates the removed head.
  • the glenoid surface and scapula 1 10 can be prepared to receive the glenoid component 106, which can be secured thereto by various methods including bone cement, etc.
  • the entire glenoid component 106 can be formed of a biocompatible polymeric material such as polyethylene or ultra-high molecular weight polypropylene.
  • the glenoid component 106 can be entirely secured to the scapula 1 10 by bone cement or another biocompatible fixation material according to an example.
  • portions of the glenoid component 106 and other components can be coated or otherwise comprised of a highly porous biomaterial useful as a bone substitute and/or cell and tissue receptive material for promotion of bone ingrowth to aid in the osseointegration.
  • a highly porous biomaterial useful as a bone substitute and/or cell and tissue receptive material for promotion of bone ingrowth to aid in the osseointegration.
  • An example of such a material is produced using Trabecular MetalTM technology available from Zimmer, Inc., of Warsaw, Ind.
  • Trabecular MetalTM is a trademark of Zimmer Technology, Inc.
  • a material may be formed from a reticulated vitreous carbon foam substrate which is infiltrated and coated with a biocompatible metal, such as tantalum, etc., by a chemical vapor deposition ("CVD") process in the manner disclosed in detail in U.S. Pat. No. 5,282,861, the disclosure of which is incorporated herein by reference.
  • CVD chemical vapor deposition
  • the embodiments described herein utilize porous tantalum, other metals such as niobium, or alloys of tantalum and niobium with one another or with other metals may also be used,
  • FIGS. 2 and 2 A shows the glenoid component 106 according to one example embodiment in further detail .
  • the glenoid component 106 can include a main body portion 1 14, a first projection 1 16, a second projection 118, and a third projection 120.
  • the main body component 114 can include a first surface 122 and a second surface 124.
  • the first projection 116 can include a stem 126, ribs 128, and rib features 130.
  • the main body portion 1 14 of the glenoid component 106 can be coupled to the first projection 116, the second projection 1 18, and the third projection 120.
  • the first projection 1 16, the second projection 118, and the third projection 120 can be integrally formed along with the main body portion 114 so as to comprise a single-piece monolithic assembly.
  • one or more of the first projection 1 16, the second projection 118, and the third projection 120 can comprise a separate component that is assembled to the main body component 114 using know methods (e.g., mechanical means).
  • the first surface 122 of the main body portion 1 14 can be adapted to contact a glenoid surface of the scapula 1 10 (FIG. 1A) and the second surface 124 can be configured to receive the head 104 (FIG. 1A).
  • the second surface 124 can comprise an articulation surface.
  • the first projection 1 16, the second projection 118, and the third projection 120 can extend from the first surface 122 into apertures (not shown) in the scapula 110 (FIG. 1 A) and can aid in affixing the glenoid component 106 to the scapula 1 10.
  • the second projection 1 18 and the third projection 120 which can be spaced apart from the first projection 1 16 in substantially opposite directions such that the first projection 1 16, the second projection 118, and the third projection 120 are substantially aligned with respect to one another.
  • the second projection 118 and the third projection 120 can lack ribs or other features.
  • the second projection 118 and the third projection 120 can have threads or other fixation features that can provide for coupling of the glenoid component 106 to bone.
  • at least one surface of the main body portion 114, the stem 126, the second projection 1 18, and the third projection 120 can have a porous metal material, as previously discussed, that can be adapted to induce ingrowth of bone therein.
  • the stem 126 of the first projection 1 16 can extend from the main body portion 1 14 and can be adapted for insertion into bone of a patient.
  • the second and third projections 118, 120 can include stems that are adapted for insertion into the bone as well.
  • the first projection 116 can include at least one rib 128 extending outwardly from and disposed about at least a portion of the stem 126.
  • the example of FIGS. 2 and 2A illustrates five ribs, each rib 128 spaced from one another along an axial length of the stem 126.
  • the rib 128 can extend about the stem 126 to a lesser extent than 360°.
  • each rib 128 is illustrated as extending substantially perpendicularly outward from the stem 126, in other examples one or more ribs can extend at a different angle (e.g., an acute angle).
  • the ribs 128 can be integrally formed with the stem 126 to comprise a single-piece monolithic structure therewith.
  • the rib features 130 can be formed with the ribs 128 in some examples. However, in other examples the rib features 130 can comprise cutouts (e.g., material removed from the ribs 128 after initial forming).
  • each rib 128 can have the rib features 130 formed therein.
  • the rib features 130 can be adapted to allow a fixation material (FIG. 3) to pass the rib 128 and be disposed adjacent the stem 126 (and/or parts of the ribs) upon insertion of the first projection 116. More particularly, the rib features 130 are adapted to allow for dispersion of the fixation material between the ribs 128 and along portion(s) of the stem 126.
  • the rib features 130 can comprise one or more passages with the passages are defined by the ribs. The passages can also be referred to as channels herein in some instances.
  • the passages can be adapted to allow bone cement and/or other fixation materials to pass around the ribs 128. As shown in FIG, 2A, the passages can extend from an outermost peripheral edge 132 of each rib 128 to adjacent the stem 126. Each of the passages can have substantially a semicircular cross-sectional shape and can be defined by a second peripheral edge 134 of the rib 128. However, in other examples, the passages can comprise apertures that extend through the ribs but are spaced from the outermost peripheral edge 132 and the stem 126. Thus, the passages can be adapted to allow bone cement and/or other fixation materials to pass through the ribs 128.
  • the passages can comprise four passages for each rib and can be symmetrically spaced (e.g., noon, three, six and nine o'clock) with respect to the stem 126. Additionally, the passages can generally align with one another along the axial length of the stem 126. Although five ribs 128 are illustrated in the example of FIGS. 2 and 2A, the plurality of ribs can comprise three to five rib according to some examples. Other examples can utilize less ribs (e.g., one or two) or more ribs (e.g., more than five ribs). As discussed, the ribs 128, stem 126, etc., and can comprise a same material (e.g., a
  • FIG. 3 illustrates the glenoid component 106 inserted into apertures in bone (e.g., the scapula) and surrounded by fixation material 150.
  • the ribs 128 are adapted to extend past the fixation material 150 within the aperture.
  • the ribs 128 are configured to interfere with the bone upon insertion of the projection 116,
  • the ribs 128 can flex or otherwise deform upon insertion of the projection 116 into the bone. This arrangement can aid in affixing the glenoid component 106 in place relative to the scapula (not shown).
  • the ribs may not be configured to interfere with bone upon insertion of the projection.
  • the channels can allow for passage of fixation material to improve dispersion of material and thereby improve stability of the implant upon curing.
  • the fixation material 150 (e.g., bone cement) can be cured to further affix the glenoid component 106 to the bone.
  • the rib features 130 can comprise channels between the bone and the stem that allow for passage of the fixation material around/through at least a portion of the ribs 128 to adjacent the stem 126 as shown in FIG. 3.
  • the channels can allow for backfill of the fixation material 150 around the stem 126, ribs 128, etc., as the projection 116 is inserted into the fixation material 150 filling the aperture.
  • FIGS. 4 and 4A illustrate a glenoid component 206 according to another example.
  • the glenoid component 206 can include a first projection 216 and a second projection 218 coupled to a main body portion 214.
  • the first projection 216 can be disposed adjacent a first end 240 of the main body portion 214 and the second projection 218 is disposed adjacent an opposing second end 242 of the main body portion 214.
  • a stem 226 A of the first projection 216 can extend from the main body portion 214 and can be adapted for insertion into bone of a patient.
  • the first projection 216 can include ribs 228A (e.g., three ribs) extending outwardly from and disposed about at least a portion of the stem 226A.
  • a stem 226B of the second projection 218 can extend from the main body portion 214 and can be adapted for insertion into bone of the patient.
  • the second projection 218 can include ribs 228B (e.g., three ribs) extending outwardly from and disposed about at least a portion of the stem 226B.
  • Each of the ribs 228A and 228B can have rib features 23 OA and 230B (FIG. 4), respectively.
  • the rib features 23 OA and 230B can be adapted to allow a fixation material to pass the ribs 230A or 230B and be disposed adjacent the stem 226A or 226B and ribs 228 A or 228B upon insertion.
  • rib features 23 OA can be adapted to allow a fixation material to be disposed adjacent stem 226A and around rib 228A of the first projection 216.
  • rib features 23 OB can be adapted to allow a fixation material to be disposed adjacent stem 226B and around rib 228B of the second proj ection 218, [0056] FIG.
  • the method forms 302 an aperture in a bone of a patient, disposes 304 a fixation material in the aperture, inserts 306 an orthopedic implant having a rib with a channel into the aperture and fixation material— the channel adapted to facilitate a backfill of the fixation material around at least a portion of the orthopedic implant, and cures 308 the fixation material.
  • the channel can comprise a plurality of channels and the ribs can comprise a plurality of ribs.
  • the channels can generally align along an axial length of the orthopedic implant.
  • the method can secure (e.g. cure, fasten, etc.) at least a second projection to the bone to prevent movement of the orthopedic implant relative to the bone.
  • the implant can comprise a glenoid component and the bone comprises a scapula.
  • FIGS. 1-5 Although specific configurations of a glenoid component having ribs and rib features are discussed in FIGS. 1-5, other designs of an implant having fixation material dispersing features that fall within the scope of the claims are anticipated.
  • the implant recited in the claims can cover orthopedic implants for artificial knees, ankles, elbows, and hips. Additionally, the implant recited can be utilized for trauma implants, oncology and/or reconstructive systems, etc.

Landscapes

  • Health & Medical Sciences (AREA)
  • Orthopedic Medicine & Surgery (AREA)
  • Cardiology (AREA)
  • Oral & Maxillofacial Surgery (AREA)
  • Transplantation (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Vascular Medicine (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Prostheses (AREA)

Abstract

L'invention concerne un implant chirurgical (106), ainsi que des systèmes et des procédés associés à l'implant chirurgical. L'implant chirurgical peut comprendre une partie corps principal (114) et une saillie (116). La saillie peut avoir une tige (126) s'étendant depuis la partie corps principal, et peut être conçue pour une introduction dans un os d'un patient. La saillie peut comprendre au moins une nervure (128) s'étendant vers l'extérieur à partir d'au moins une partie de la tige et disposée autour de cette dernière. La nervure peut avoir un ou plusieurs éléments (130) conçus pour permettre à un matériau de fixation de faire passer la nervure (soit en passant à travers et/ou autour) et d'être disposé de manière adjacente à la tige lors de l'introduction de la saillie.
PCT/US2015/065185 2015-01-16 2015-12-11 Chevilles d'implant glénoïde ayant des éléments de remplissage WO2016114880A1 (fr)

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US62/104,129 2015-01-16

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2018136642A3 (fr) * 2017-01-19 2018-09-27 Encore Medical, L.P. (D/B/A Djo Surgical) Composants d'implant d'épaule
JP2020505875A (ja) * 2017-02-06 2020-02-20 クアルコム，インコーポレイテッド 低レイテンシワイヤレス通信のためのリソース管理
WO2023215141A1 (fr) * 2022-05-03 2023-11-09 Smith & Nephew, Inc. Composant glénoïde

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20070219637A1 (en) * 2006-03-20 2007-09-20 Berelsman Brian K Modular center pegged glenoid
US20100228352A1 (en) * 2009-03-05 2010-09-09 Tomier, Inc. Glenoid implant anchor post
FR2990844A1 (fr) * 2012-05-22 2013-11-29 Fx Solutions Implant d'omoplate de prothese d'epaule
US20140257495A1 (en) * 2013-03-11 2014-09-11 Catalyst Orthopaedics Glenoid arthroplasty

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20070219637A1 (en) * 2006-03-20 2007-09-20 Berelsman Brian K Modular center pegged glenoid
US20100228352A1 (en) * 2009-03-05 2010-09-09 Tomier, Inc. Glenoid implant anchor post
FR2990844A1 (fr) * 2012-05-22 2013-11-29 Fx Solutions Implant d'omoplate de prothese d'epaule
US20140257495A1 (en) * 2013-03-11 2014-09-11 Catalyst Orthopaedics Glenoid arthroplasty

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2018136642A3 (fr) * 2017-01-19 2018-09-27 Encore Medical, L.P. (D/B/A Djo Surgical) Composants d'implant d'épaule
CN110678151A (zh) * 2017-01-19 2020-01-10 安可医疗有限公司(以Djo外科名义) 肩部植入部件
KR20200010171A (ko) * 2017-01-19 2020-01-30 앙코르 메디컬, 엘.피.(디/비/에이 디제이오 서지컬) 어깨 임플란트 구성요소
US10561501B2 (en) 2017-01-19 2020-02-18 Encore Medical, L.P. Shoulder implant components
KR102535536B1 (ko) * 2017-01-19 2023-05-22 앙코르 메디컬, 엘.피.(디/비/에이 디제이오 서지컬) 어깨 임플란트 구성요소
JP2020505875A (ja) * 2017-02-06 2020-02-20 クアルコム，インコーポレイテッド 低レイテンシワイヤレス通信のためのリソース管理
WO2023215141A1 (fr) * 2022-05-03 2023-11-09 Smith & Nephew, Inc. Composant glénoïde

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