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WO2023034042A1 - Implant d'articulation fémoro-patellaire non cimenté - Google Patents

Implant d'articulation fémoro-patellaire non cimenté Download PDF

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Publication number
WO2023034042A1
WO2023034042A1 PCT/US2022/040854 US2022040854W WO2023034042A1 WO 2023034042 A1 WO2023034042 A1 WO 2023034042A1 US 2022040854 W US2022040854 W US 2022040854W WO 2023034042 A1 WO2023034042 A1 WO 2023034042A1
Authority
WO
WIPO (PCT)
Prior art keywords
implant
pocket
patient
femur
bone
Prior art date
Application number
PCT/US2022/040854
Other languages
English (en)
Inventor
Jacob NEW
Original Assignee
Smith & Nephew, Inc.
Smith & Nephew Orthopaedics Ag
Smith & Nephew Asia Pacific Pte. Limited
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 Smith & Nephew, Inc., Smith & Nephew Orthopaedics Ag, Smith & Nephew Asia Pacific Pte. Limited filed Critical Smith & Nephew, Inc.
Priority to AU2022339779A priority Critical patent/AU2022339779A1/en
Priority to EP22769823.0A priority patent/EP4340779A1/fr
Publication of WO2023034042A1 publication Critical patent/WO2023034042A1/fr

Links

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
    • A61F2/38—Joints for elbows or knees
    • A61F2/3877—Patellae or trochleae
    • 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
    • A61F2/30767—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
    • A61F2002/30891—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
    • A61F2/30767—Special external or bone-contacting surface, e.g. coating for improving bone ingrowth
    • A61F2002/3092—Special external or bone-contacting surface, e.g. coating for improving bone ingrowth having an open-celled or open-pored structure

Definitions

  • the present disclosure relates generally to orthopedic devices and more particularly to a cementless patellofemoral joint implant arranged and configured to be insetted (e.g., received) within a pocket formed in the patient’s bone.
  • Orthopedic implants are well known and commonplace in today’s society. Orthopedic implants may be used, for example, to stabilize an injury, to support a bone fracture, to fuse a joint, and/or to correct a deformity. Orthopedic implants may be attached permanently or temporarily, and may be attached to the bone at various locations, including implanted within a canal or other cavity of the bone, implanted beneath soft tissue and attached to an exterior surface of the bone, or disposed externally and attached by fasteners such as screws, pins, and/or wires. Some orthopedic implants allow the position and/or orientation of two or more bone pieces, or two or more bones, to be adjusted relative to one another. [0004] The knee joint is a frequent place for joint damage, and the loss of normal
  • the extent of the damage to the knee joint can vary greatly depending on the cause, age of the patient, pre-existing conditions and other factors.
  • the knee is a common source of problems because the joint has an unusually large range of motion and bears nearly half of the weight of the entire body.
  • a primary knee movement known as flexion-extension movement, includes bending (flexion) and straightening (extension) of the leg in which a lower part of the leg (tibia and fibula bones) flexes in relation to an upper part of the leg (femur bone).
  • the knee joint can also accommodate a certain amount of rotational motion in which the lower leg rotates a few degrees in relation to the upper leg. This wide range of motion requires extensive contact surface between the femur and the tibia. Further, the knee joint is rather loosely held together by tendons and ligaments to permit such a wide range of motion.
  • the front, or anterior side, of the knee joint is protected by the kneecap or patella.
  • the patella is held in place by ligaments and slides over a femoral joint surface during flexion-extension movement.
  • the patella and its ligaments are mechanically involved in joint extension. If any of the joint surfaces (e.g., femoral surface, patellar surface, or tibial surface) becomes damaged or roughened, the knee joint will not operate properly, and the patient is likely to experience significant pain.
  • One known problem is damage to the patellofemoral joint that causes free motion of the patella to be inhibited and/or painful. Patellofemoral joint (PFJ) damage can prohibit normal joint movement.
  • PFJ Patellofemoral joint
  • PFJ damage may be adequately addressed with a PFJ arthroplasty, as opposed to a total knee replacement.
  • PFJ arthroplasty surgery is less drastic than total knee replacement. It is designed for patients whose main problems involve only the patellofemoral part of the knee and is directed to providing a smooth sliding relationship between the femur and the patella.
  • the surface of the femur on which the patella slides is referred to as the trochlear groove.
  • the trochlear groove is the indentation or groove located between the medial and lateral condylar surfaces at the distal end of the femur.
  • an orthopedic patellar bearing surface is introduced.
  • the orthopedic bearing surface typically includes an anchoring portion for receiving natural patellar remnants.
  • the final patellar structure may include a posterior orthopedic bearing surface and an anterior natural patella surface.
  • the anterior natural patella surface typically retains the connective tissue that connects the patella to the quadriceps and tibia.
  • a cooperating orthopedic femur implant is typically affixed onto the end of the femur.
  • the orthopedic femoral implant in most cases includes a bearing surface that is specially adapted to receive the orthopedic patellar bearing surface to ensure reliable travel during flexion movement.
  • PFJ implant that minimizes the amount of bone removal needed for implantation.
  • PFJ implant that is attached to the patient’s bone without cement (e.g., cementless application).
  • the present disclosure illustrates and describes various embodiments of a cementless patellofemoral joint (“PFJ”) implant arranged and configured to be positioned within a pocket formed in a patient’s femur.
  • the PFJ implant includes a bone-facing inner surface, a patella contacting outer surface opposite thereof, and a periphery extending between the bone-facing inner surface and the patella contacting outer surface, the bone-facing inner surface includes a non-facetted bonefacing surface arranged and configured to be positioned within the pocket formed in the patient’s femur, the bone-facing surface including a chamfer surface formed along the periphery of the implant, the chamfer surface arranged and configured to provide an interference fit, a press-fit, etc. with a periphery or wall of the pocket.
  • the non-facetted bone-facing surface is arranged and configured to substantially match the contours of the inner surface of the pocket so that protrusion of the outer surface from the pocket is minimized. That is, the implant is arranged and configured so that the patella contacting outer surface substantially matches an outer surface of the patient’s femur so that the implant does not protrude substantially beyond the pocket.
  • the chamfer surface is arranged and configured as a tapered surface extending between the outer surface and the bone-facing inner surface (e.g., tapered surface extends from the patella contacting outer surface towards the bonefacing inner surface).
  • the bone-facing inner surface includes a porous coating to enhance bone-in growth and long-term fixation.
  • the PFJ implant includes a plurality of pegs extending from the bone-facing inner surface.
  • the pocket is formed by an orthopedic robotic surgical system.
  • a method for implanting a cementless PFJ implant into a patient’s femur including forming a contoured pocket in a patient’s femur using an orthopedic robotic surgical system and implanting a PFJ implant into the pocket formed in the patient’ s femur, wherein the PFJ implant is secured within the pocket via an interference fit, a press-fit, etc. between a chamfer surface of the implant and a periphery or wall of the pocket.
  • implanting the PFJ implant into the pocket formed in the patient’s femur is devoid of any cement.
  • the PFJ implant includes a bone-facing inner surface having a non-facetted bone-facing surface defining non-planar curves arranged and configured to match inner contours of the pocket.
  • forming the contoured pocket in the patient’s femur is performed so that a depth of the pocket substantially matches a thickness of the implant so that the implant does not protrude substantially beyond the pocket.
  • the method further includes forming a plurality of holes in the patient’s femur within the confines of the pocket and implanting the patellofemoral implant into the pocket formed in the patient’ s femur includes inserting a plurality of pegs extending from a bone-facing inner surface of the patellofemoral implant within the plurality of holes.
  • Embodiments of the present disclosure provide numerous advantages. For example, by insetting the PFJ implant within a pocket formed in the patient’s bone, less bone removal is required (e.g., need to create a plurality of planar cuts is eliminated).
  • the PFJ implant can be implanted and coupled to the patient’s femur without cement (e.g., cementless application) thereby eliminating the need for injecting any cement into the patient’s body.
  • FIG. 1 illustrates a perspective view of an embodiment of a patellofemoral implant coupled to a patient’s femur in accordance with one or more features of the present disclosure
  • FIG. 2 illustrates a perspective view of the bone-facing surface of the patellofemoral implant shown in FIG. 1;
  • FIG. 3 illustrates a perspective view of the outer or patella contacting surface of the patellofemoral implant shown in FIG. 1;
  • FIGS. 4A-4C illustrate various perspective views of the pocket formed in the patient’ s femur, the pocket configured to receive the patellofemoral implant shown in FIG. 1;
  • FIG. 5 is a diagram illustrating an environment for operating an orthopedic robotic surgical system for planning and performing an arthroplasty surgery (e.g., for creating the pocket in the patient’s femur for receiving the patellofemoral implant shown in FIG. 1) in accordance with one or more features of the present disclosure.
  • PFJ patellofemoral joint
  • the PFJ implant is arranged and configured to be positioned, received, insetted, etc. (terms used interchangeably without the intent to limit or distinguish) within a corresponding pocket formed in the patient’s femur.
  • the pocket may be formed by an orthopedic robotic surgical system.
  • the pocket may be formed by a burr coupled to the end of a robotic arm in an orthopedic robotic surgical system.
  • the PFJ implant is arranged and configured to be implanted without the need for cement (e.g., cementless application).
  • the PFJ implant may be arranged and configured to be received within a pocket formed in the patient’s femur.
  • the PFJ implant may be received within the pocket via an interference fit, a press-fit, etc. (terms used interchangeably herein without the intent to limit or distinguish).
  • the PFJ implant may be implanted without the need for cement by forming and placing the PFJ implant into a pocket formed in the patient’s femur.
  • initial primary fixation may be provided by an interference fit between the PFJ implant and the walls or periphery of the pocket.
  • secondary fixation may be achieved by osseointegration with the porous, bonefacing inner surfaces of the PFJ implant.
  • a patellofemoral joint (“PFJ”) implant 100 is arranged and configured to resurface the patellofemoral region of a patient’s knee (e.g., a patient’s femur F).
  • the PFJ implant 100 may be used in combination with an unresurfaced patella (e.g., a natural patella) or with any resurfaced patella implant, such as a domeshaped patella implant or an oval patella implant.
  • the PFJ implant 100 includes a body 101 including a bone-facing inner surface 102 and a patella contacting outer surface 104 opposite thereof.
  • the PFJ implant 100 includes a proximal portion or region 110 and a distal portion or region 112 defining a medial portion or region 114, a lateral portion or region 116, and an intracondylar notch portion or region 118.
  • the intracondylar notch portion or region 118 is arranged and configured to provide a smooth transition to the femoral condyles.
  • the medial portion or region 114 and the lateral portion or region 116 are shaped to provide maximum bone coverage of the anterior femur F.
  • the lateral portion or region 116 may have an increased thickness in the proximal portion or region 110 to prevent patellar subluxation (e.g., in the proximal region, at least a portion of the lateral region has an increased thickness between the inner surface and the outer surface as compared to the medial region).
  • the medial portion or region 114 may have less material than the lateral portion or region 116 in the proximal portion or region 110. This may be done for several reasons. For example, the medial portion or region 114 may have less material in order to decrease the overall size of the PFJ implant 100, to reduce the weight of the PFJ implant 100, or to allow the PFJ implant 100 to achieve a better fit.
  • the PFJ implant 100 may include a patellofemoral groove 120 formed in the outer surface 104.
  • the groove 120 is arranged and configured to enable the patella to track therein (e.g., the groove 120 forms a curved outer surface, or bearing surface, in which the patella tracks).
  • the groove 120 may be lateralized in the proximal portion or region 110 to allow the patella to track normally, regardless of whether the patella has been resurfaced or not.
  • the patella is lateralized in extension and transitions to the intracondylar notch portion or region 118 in flexion as it moves in the groove 120.
  • the bone-facing inner surface 102 includes a nonfacetted bone facing surface.
  • the PFJ implant 100 is arranged and configured to be positioned within a pocket 200 formed in the patient’s femur.
  • the non-facetted bone facing surface includes curves (e.g., non-planar) so that the bone facing inner surface 102 is arranged and configured to substantially match the inner contours of the pocket 200.
  • the PFJ implant 100 is arranged and configured to reside within the pocket 200 formed in the patient’s femur F rather than sitting atop of the patient’s resected outer bone surface. As such, the PFJ implant 100 is arranged and configured to substantially match or correspond with the removed bone (e.g., pocket 200). In use, the PFJ implant 100 replaces substantially what is removed during formation of the pocket 200 to eliminate, or at least minimize, bone removal from the patient’s femur F. In some embodiments, as illustrated in FIG. 1, the depth of the pocket 200 formed in the patient’s femur F substantially matches a thickness of the PFJ implant 100 so that the PFJ implant 100 does not protrude substantially beyond the pocket 200.
  • the bone-facing inner surface 102 includes one or more features to enhance fixation.
  • the bone-facing inner surface 102 may include a porous coating 103 to enhance bone-in growth and long-term fixation.
  • the PFJ implant 100 may include a plurality of projections, anchors, or pegs 130 extending from the bone-facing inner surface 102, each of the plurality of pegs 130 being arranged and configured to be received within a hole, a bore, etc. 202 formed in the patient’s femur F within the confines of the pocket 200.
  • the PFJ implant 100 may include three anterior pegs 130A and one distal peg 130B, but this is but one configuration and the implant may include more or less pegs in similar or different configurations.
  • the distal peg 130B may be omitted entirely or the PFJ implant 100 may include a plurality of distal pegs 130B.
  • the distal peg 130B may be angled relative to the anterior pegs 130A to enhance fixation.
  • the distal peg 130B may be oblique relative to the anterior pegs 130A.
  • the PFJ implant 100 may include an inset or chamfer surface 150 formed along a periphery of the bone-facing inner surface 102.
  • the inset or chamfer surface 150 is arranged and configured as a taper surface extending between the outer surface 104 and the bone-facing inner surface 102, the chamfer surface 150 tapering inward as it moves from the outer surface 104 towards the bone-facing inner surface 102.
  • the inset or chamfer surface 150 may include approximately a 20 to 30 degree taper, more preferably a 25-degree taper.
  • the inset or chamfer surface 150 is arranged and configured to create an initial interference fit with the pocket 200 formed in the patient’s femur F (e.g., the inset or chamfer surface 150 creating an initial interference fit with a wall or periphery 204 of the pocket 200 formed in the patient’s femur F). While the inset or chamfer surface 150 has been illustrated and described as a tapered surface, alternate configurations are allowed such as, for example, a straight surface including a recessed ledge.
  • the pocket 200 may be created by a burr attached to an end of an orthopedic robotic surgical system.
  • the orthopedic robotic surgical system 400 is arranged and configured to create or form the pocket 200 in a patient’s femur.
  • system 400 may be or may include an image-free (for instance, CT-less) system.
  • system 400 may be or may include an image-based system based on diagnostic image data.
  • system 400 may operate using a combination of image-free and image-based processes. Embodiments are not limited in this context.
  • the orthopedic robotic surgical system 400 may include a surgical cutting tool 450 arranged and configured to create or form the pocket 200 in the patient’s femur F.
  • the surgical cutting tool 450 may be a burr. As illustrated, the surgical cutting tool 450 may be associated with an optical tracking frame 455 (also referred to as tracking array 455).
  • the orthopedic robotic surgical system 400 may include a graphical user interface 430, an optical tracking system 440, and patient tracking frames 420 (also referred to as tracking arrays 420).
  • the illustration also includes an incision 410 through which the pocket 200 in the patient’s femur may be performed.
  • the illustrated robotic surgical system 400 depicts a hand-held computer-controlled surgical robotic system, for instance, the same or similar to the CORI® Surgical System from Smith Nephew, Inc.
  • the orthopedic robotic surgical system 400 may use an optical tracking system 440, or other type of tracking system, coupled to a robotic controller to track and control a hand-held surgical instrument.
  • optical tracking system 440 tracks tracking array 455 coupled to surgical tool 450 and tracking arrays 420 coupled to the patient to track locations of the instrument relative to the target bone (e.g., femur).
  • the PFJ implant 100 may be manufactured from any suitable biocompatible material now known or hereafter developed.
  • the PFJ implant 100 may be made from cobalt chromium, stainless steel, titanium, oxidized zirconium, or other metal alloys.
  • the PFJ implant 100 may be manufactured from standard polyethylene, cross-linked polyethylene, ultra-high molecular weight plastic, other plastics, or a composite material.
  • the PFJ implant 100 is manufactured from oxinium and includes a porous coating 103 applied thereto.
  • the porous coating 103 may be printed, sprayed, sintered, or bonded onto the bone facing surfaces of PFJ implant 100.
  • the porous coating 103 may be formed by titanium, cobalt chrome, zirconium, oxidized zirconium, tantalum, or stainless steel over the bone facing surfaces of the PFJ implant.
  • the PFJ implant 100 has a low nickel content.
  • Connection references are to be construed broadly and may include intermediate members between a collection of elements and relative to movement between elements unless otherwise indicated. As such, connection references do not necessarily infer that two elements are directly connected and in fixed relation to each other. All rotational references describe relative movement between the various elements. Identification references (e.g., primary, secondary, first, second, third, fourth, etc.) are not intended to connote importance or priority but are used to distinguish one feature from another.
  • the drawings are for purposes of illustration only and the dimensions, positions, order and relative to sizes reflected in the drawings attached hereto may vary.

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  • Health & Medical Sciences (AREA)
  • Orthopedic Medicine & Surgery (AREA)
  • Physical Education & Sports Medicine (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 d'articulation fémoro-patellaire (100) et une méthode correspondante pour son implantation. Dans certains modes de réalisation, l'implant d'articulation fémoro-patellaire est agencé et configuré pour être positionné (p. ex., reçu, inséré, etc.) dans une poche formée dans le fémur du patient. En outre, et/ou en variante, l'implant d'articulation fémoro-patellaire est disposé et configuré pour être implanté sans nécessiter de ciment (p. ex., application non cimentée). Ainsi agencé, l'implant d'articulation fémoro-patellaire peut être désigné comme un implant d'articulation fémoro-patellaire inséré non cimenté. Dans certains modes de réalisation, la poche peut être formée par un système chirurgical robotique orthopédique et l'implant d'articulation fémoro-patellaire peut être accouplé dans la poche par un ajustement serré entre l'implant d'articulation fémoro-patellaire et les parois de la poche.
PCT/US2022/040854 2021-08-30 2022-08-19 Implant d'articulation fémoro-patellaire non cimenté WO2023034042A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
AU2022339779A AU2022339779A1 (en) 2021-08-30 2022-08-19 Cementless patellofemoral joint implant
EP22769823.0A EP4340779A1 (fr) 2021-08-30 2022-08-19 Implant d'articulation fémoro-patellaire non cimenté

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US202163238338P 2021-08-30 2021-08-30
US63/238,338 2021-08-30

Publications (1)

Publication Number Publication Date
WO2023034042A1 true WO2023034042A1 (fr) 2023-03-09

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ID=83318846

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2022/040854 WO2023034042A1 (fr) 2021-08-30 2022-08-19 Implant d'articulation fémoro-patellaire non cimenté

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Country Link
EP (1) EP4340779A1 (fr)
AU (1) AU2022339779A1 (fr)
WO (1) WO2023034042A1 (fr)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1955677A2 (fr) * 2007-02-06 2008-08-13 Zimmer Technology, Inc. Prothèses de trochlée fémorale
WO2010098885A1 (fr) * 2009-02-27 2010-09-02 Howmedica Osteonics Corp. Sillon trochléaire par lamage
US20120259335A1 (en) * 2005-05-20 2012-10-11 Smith & Nephew, Inc. Patello-femoral joint implant and instrumentation
US20150297353A1 (en) * 2008-07-10 2015-10-22 Imperial Innovations Limited Modular knee implants

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20120259335A1 (en) * 2005-05-20 2012-10-11 Smith & Nephew, Inc. Patello-femoral joint implant and instrumentation
EP1955677A2 (fr) * 2007-02-06 2008-08-13 Zimmer Technology, Inc. Prothèses de trochlée fémorale
US20150297353A1 (en) * 2008-07-10 2015-10-22 Imperial Innovations Limited Modular knee implants
WO2010098885A1 (fr) * 2009-02-27 2010-09-02 Howmedica Osteonics Corp. Sillon trochléaire par lamage

Also Published As

Publication number Publication date
EP4340779A1 (fr) 2024-03-27
AU2022339779A1 (en) 2024-02-08

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