WO2020226598A1 - Novelty in reverse shoulder prostheses - Google Patents

Novelty in reverse shoulder prostheses Download PDF

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Publication number
WO2020226598A1
WO2020226598A1 PCT/TR2020/050396 TR2020050396W WO2020226598A1 WO 2020226598 A1 WO2020226598 A1 WO 2020226598A1 TR 2020050396 W TR2020050396 W TR 2020050396W WO 2020226598 A1 WO2020226598 A1 WO 2020226598A1
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WO
WIPO (PCT)
Prior art keywords
shoulder
prosthesis
proximal
orthopedic
peripheral
Prior art date
Application number
PCT/TR2020/050396
Other languages
French (fr)
Inventor
Hayri DURSUNOGLU
Levent KUCUK
Burcin KECECI
Original Assignee
Hipokrat Tibbi Malzemeler Imalat Ve Pazarlama Anonim Sirketi
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 Hipokrat Tibbi Malzemeler Imalat Ve Pazarlama Anonim Sirketi filed Critical Hipokrat Tibbi Malzemeler Imalat Ve Pazarlama Anonim Sirketi
Publication of WO2020226598A1 publication Critical patent/WO2020226598A1/en

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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
    • A61F2/4014—Humeral heads or necks; Connections of endoprosthetic heads or necks to endoprosthetic humeral shafts
    • 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
    • A61F2/4059—Humeral shafts
    • 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
    • A61F2002/30001—Additional features of subject-matter classified in A61F2/28, A61F2/30 and subgroups thereof
    • A61F2002/30316—The prosthesis having different structural features at different locations within the same prosthesis; Connections between prosthetic parts; Special structural features of bone or joint prostheses not otherwise provided for
    • A61F2002/30329—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements
    • A61F2002/30331—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements made by longitudinally pushing a protrusion into a complementarily-shaped recess, e.g. held by friction fit
    • A61F2002/30332—Conically- or frustoconically-shaped protrusion and recess
    • 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
    • A61F2002/30001—Additional features of subject-matter classified in A61F2/28, A61F2/30 and subgroups thereof
    • A61F2002/30316—The prosthesis having different structural features at different locations within the same prosthesis; Connections between prosthetic parts; Special structural features of bone or joint prostheses not otherwise provided for
    • A61F2002/30329—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements
    • A61F2002/30461—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements sutured, ligatured or stitched
    • 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
    • A61F2002/30001—Additional features of subject-matter classified in A61F2/28, A61F2/30 and subgroups thereof
    • A61F2002/30316—The prosthesis having different structural features at different locations within the same prosthesis; Connections between prosthetic parts; Special structural features of bone or joint prostheses not otherwise provided for
    • A61F2002/30535—Special structural features of bone or joint prostheses not otherwise provided for
    • A61F2002/30576—Special structural features of bone or joint prostheses not otherwise provided for with extending fixation tabs
    • A61F2002/30578—Special structural features of bone or joint prostheses not otherwise provided for with extending fixation tabs having apertures, e.g. for receiving fixation screws
    • 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
    • A61F2002/30001—Additional features of subject-matter classified in A61F2/28, A61F2/30 and subgroups thereof
    • A61F2002/30316—The prosthesis having different structural features at different locations within the same prosthesis; Connections between prosthetic parts; Special structural features of bone or joint prostheses not otherwise provided for
    • A61F2002/30535—Special structural features of bone or joint prostheses not otherwise provided for
    • A61F2002/30604—Special structural features of bone or joint prostheses not otherwise provided for modular
    • 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
    • A61F2002/30772—Apertures or holes, e.g. of circular cross section
    • A61F2002/30784—Plurality of holes
    • 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
    • A61F2002/30827—Plurality of 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
    • A61F2/40—Joints for shoulders
    • A61F2002/4011—Joints for shoulders including proximal or total replacement of the humerus
    • 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
    • A61F2/4014—Humeral heads or necks; Connections of endoprosthetic heads or necks to endoprosthetic humeral shafts
    • A61F2002/4018—Heads or epiphyseal parts of humerus
    • A61F2002/4022—Heads or epiphyseal parts of humerus having a concave shape, e.g. hemispherical 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
    • A61F2/40—Joints for shoulders
    • A61F2/4014—Humeral heads or necks; Connections of endoprosthetic heads or necks to endoprosthetic humeral shafts
    • A61F2002/4037—Connections of heads to necks
    • 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
    • A61F2/4014—Humeral heads or necks; Connections of endoprosthetic heads or necks to endoprosthetic humeral shafts
    • A61F2002/4044—Connections of necks to shafts
    • 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
    • A61F2/4059—Humeral shafts
    • A61F2002/4062—Proximal or metaphyseal parts of shafts
    • 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
    • A61F2002/4085—Glenoid components, e.g. cups having a convex shape, e.g. hemispherical heads

Definitions

  • the invention relates to a prosthesis which is used in orthopedic reverse shoulder operations, ensures the patient to move his/her shoulder more effectively in his/her daily life by means of turning the shoulder inwardly by making a connection between the muscle that turns the shoulder inwardly (subscapularis) and the prosthesis.
  • the invention is an orthopedic product which can be used for the reconstruction of the defects that occur due to any reason in the humerus proximal.
  • the invention particularly relates to an orthopedic prosthesis to be used in the medical field in severe shoulder structure disorders such as insufficient shoulder rotator muscles (rotator cuff), calcification (arthritis) and complex shoulder fractures etc.
  • severe shoulder structure disorders such as insufficient shoulder rotator muscles (rotator cuff), calcification (arthritis) and complex shoulder fractures etc.
  • the reverse shoulder prosthesis is applied to the patients with irreparable rotator cuff (shoulder rotator muscles) tear and arthritis (calcification), complex fractures and painful movement restriction.
  • the reverse shoulder prosthesis which is an important and favorable option in the surgical treatment of the shoulder problems has been used for more than 30 years.
  • Novel reverse shoulder prosthesis is developed for solving the above mentioned and existing problems in the state of the art.
  • the aim of this developed orthopedic product is to use the same for the reconstruction of the defects that occur due to any reason in the humerus proximal.
  • the invention includes the structure that will allow for mounting the rotator muscles (rotator cuff tendons) in the shoulder to the prosthesis by means of using suture materials.
  • a more efficient functional result is obtained from the prosthesis by attaching the relevant muscle or muscles to the prosthesis again.
  • the vulnerability that occurs during the rotation of the arm is eliminated by means of engaging the muscle that rotates the shoulder inwardly (subscapularis) to the prosthesis.
  • the patients is capable of carrying out some activities such as reaching to the back pocket of the trousers, lacing the upper underwear of women.
  • Another aim of the invention is to use this prosthesis having multiple suture holes in proximal bone loss cases. Required amount of suture materials can be sent from the locations seem necessary by means of the extra suture holes mentioned in the invention.
  • this product which is an orthopedic prosthesis and its components to be used in the reconstruction of the defects occurs as a result of the irreparable rotator cuff (shoulder rotator muscles) tear and arthritis (calcification), complex fractures and painful movement restriction, are shown in the attached figures.
  • Figure 1 - is a disassembled view of the reverse shoulder prosthesis having the inventive element.
  • Figure 2 - is an assembled view of the reverse shoulder prosthesis having the inventive element.
  • Figure 3 - is a side sectional view of the proximal humeral component.
  • Figure 4 - is the bottom view of the proximal humeral component included in the invention.
  • Figure 5 - is a side sectional view of the suture holes and channel periphery.
  • Figure 6 - is the passage of the suture materials from the suture holes.
  • the present invention is related to a reverse shoulder prosthesis which consists of the following elements; metaglene (2) comprising lock screw (1), glenoid sphere (3), humeral insert (4), proximal humeral component (5), humeral stem (6).
  • metaglene (2) comprising lock screw (1), glenoid sphere (3), humeral insert (4), proximal humeral component (5), humeral stem (6).
  • side section views of the elements of the invention are given in disassembled form.
  • side section views of the elements of the invention are given in assembled form.
  • Metaglene (2) which has different size options compatible with glenosphere is an element which comprises a centering stem, screw hole (tapped hole) and channel shaft to make the initial fixation easy. Metaglene (2) enables the prosthesis to be placed by means of centering the same to the glenoid bone. Lock screw (1) is used for maximum fixation and stability. Moreover, there are 2 types of metaglene and these can be implanted without cement.
  • the size of the glenoid sphere (3) is determined according to the size of metaglene (2) used to fix the same to the glenoid bone.
  • the selected size glenoid sphere (3) is located on the metaglene (2).
  • the notch located on the humeral insert (4) is positioned such that it is in line with the marking line located on the back part of the proximal humeral component (5) and the humeral insert (4) is located manually to the proximal humeral component (5) freely.
  • the humeral insert (4) is nailed on the humeral component (5) by means of a driver. Then, when the patient is in a comfortable position, the humeral insert (4) is placed on the glenoid sphere (3).
  • the shoulder is slowly examined and the determined motion range and joint stability are controlled.
  • the humeral insert (4) is separated from the glenoid sphere (3) while the arm is pulled in the distal humerus direction, it shows that the deltoid tension is insufficient. After all controls are performed, the joint gaps are washed and the residues are cleaned.
  • the peripheral suture holes (5.1) are found as located perpendicular to the proximal front surface different from the suture holes that are embedded to the bone ( Figures 3, 4, 5).
  • the rotator muscles in the shoulder are mounted to the prosthesis through suture holes (5.1) by using suture materials ( Figure 6).
  • peripheral suture holes (5.1) opened in a parallel manner to the proximal side surfaces and front surface and equal number of peripheral groove (5.2) in order to pass the suture materials easily.
  • the peripheral suture hole (5.1) openings and channel peripheries (5.3) are rounded in order not to give damage to the suture materials (Figure 5). Required amount of suture materials can be sent from the locations seem necessary by means of said peripheral suture holes (5.1).
  • Figure 6 the peripheral suture holes (5.1)

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

The invention relates to a prosthesis which is used in orthopedic reverse shoulder operations, provides the patient to move his/her shoulder more effectively in his/her daily life by means of turning the shoulder inwardly by making a connection between the muscle that turns the shoulder inwardly (subscapularis) and the prosthesis. The invention is an orthopedic product which can be used for the reconstruction of the defects that occur due to any reason in the humerus proximal. The invention particularly relates to an orthopedic prosthesis to be used in the medical field in severe shoulder structure disorders such as insufficient shoulder rotator muscles (rotator cuff), calcification (arthritis) and complex shoulder fractures etc.

Description

l
NOVELTY IN REVERSE SHOULDER PROSTHESES
Technical Field
The invention relates to a prosthesis which is used in orthopedic reverse shoulder operations, ensures the patient to move his/her shoulder more effectively in his/her daily life by means of turning the shoulder inwardly by making a connection between the muscle that turns the shoulder inwardly (subscapularis) and the prosthesis. The invention is an orthopedic product which can be used for the reconstruction of the defects that occur due to any reason in the humerus proximal.
The invention particularly relates to an orthopedic prosthesis to be used in the medical field in severe shoulder structure disorders such as insufficient shoulder rotator muscles (rotator cuff), calcification (arthritis) and complex shoulder fractures etc.
Prior Art
The reverse shoulder prosthesis is applied to the patients with irreparable rotator cuff (shoulder rotator muscles) tear and arthritis (calcification), complex fractures and painful movement restriction. The reverse shoulder prosthesis which is an important and favorable option in the surgical treatment of the shoulder problems has been used for more than 30 years.
In the state of the art, there is no structure that will enable to engage the muscle that turns the shoulder inwardly (subscapularis) to the prosthesis. This condition leads to vulnerability in turning the arm inwardly. It leads to the incapability of the patients in some activities such as reaching to the back pocket of the trousers, lacing the upper underwear by women.
In the application known in the art, in the Turkish Patent and Trademark Office document with registration number 2014-12306, it is mentioned that there is an incompatibility between the humeral insert and the lower part of the glenoid bone during adduction and thus a novel reverse shoulder prosthesis is developed in order to eliminate this incompatibility. Moreover, in another known state of the art, since the proximal humerus prosthesis is totally embedded in the bone, the suture holes in the proximal humeral component are not sufficient in sending suture materials.
Aim of the Invention
Novel reverse shoulder prosthesis is developed for solving the above mentioned and existing problems in the state of the art. The aim of this developed orthopedic product is to use the same for the reconstruction of the defects that occur due to any reason in the humerus proximal.
The invention includes the structure that will allow for mounting the rotator muscles (rotator cuff tendons) in the shoulder to the prosthesis by means of using suture materials. A more efficient functional result is obtained from the prosthesis by attaching the relevant muscle or muscles to the prosthesis again. The vulnerability that occurs during the rotation of the arm is eliminated by means of engaging the muscle that rotates the shoulder inwardly (subscapularis) to the prosthesis. Thus, the patients is capable of carrying out some activities such as reaching to the back pocket of the trousers, lacing the upper underwear of women.
Another aim of the invention is to use this prosthesis having multiple suture holes in proximal bone loss cases. Required amount of suture materials can be sent from the locations seem necessary by means of the extra suture holes mentioned in the invention.
Detailed Description of the Invention
In order to fulfill the aim of this invention, this product which is an orthopedic prosthesis and its components to be used in the reconstruction of the defects occurs as a result of the irreparable rotator cuff (shoulder rotator muscles) tear and arthritis (calcification), complex fractures and painful movement restriction, are shown in the attached figures.
Among these figures;
Figure 1 - is a disassembled view of the reverse shoulder prosthesis having the inventive element.
Figure 2 - is an assembled view of the reverse shoulder prosthesis having the inventive element. Figure 3 - is a side sectional view of the proximal humeral component.
Figure 4 - is the bottom view of the proximal humeral component included in the invention.
Figure 5 - is a side sectional view of the suture holes and channel periphery.
Figure 6 - is the passage of the suture materials from the suture holes.
Reference Numbers
1. Lock screw
2. Metaglene
3. Glenoid sphere
4. Humeral insert
5. Proximal humeral component
5.1 Peripheral suture hole
5.2 Peripheral groove
5.3 Hole opening and channel periphery
6. Humeral stem
The present invention is related to a reverse shoulder prosthesis which consists of the following elements; metaglene (2) comprising lock screw (1), glenoid sphere (3), humeral insert (4), proximal humeral component (5), humeral stem (6). In Figure 1 , side section views of the elements of the invention are given in disassembled form. In Figure 2, side section views of the elements of the invention are given in assembled form.
Metaglene (2) which has different size options compatible with glenosphere is an element which comprises a centering stem, screw hole (tapped hole) and channel shaft to make the initial fixation easy. Metaglene (2) enables the prosthesis to be placed by means of centering the same to the glenoid bone. Lock screw (1) is used for maximum fixation and stability. Moreover, there are 2 types of metaglene and these can be implanted without cement.
The size of the glenoid sphere (3) is determined according to the size of metaglene (2) used to fix the same to the glenoid bone. The selected size glenoid sphere (3) is located on the metaglene (2). The notch located on the humeral insert (4) is positioned such that it is in line with the marking line located on the back part of the proximal humeral component (5) and the humeral insert (4) is located manually to the proximal humeral component (5) freely. After positioning, the humeral insert (4) is nailed on the humeral component (5) by means of a driver. Then, when the patient is in a comfortable position, the humeral insert (4) is placed on the glenoid sphere (3). While the bone cement continues to be cured, the shoulder is slowly examined and the determined motion range and joint stability are controlled. In case the humeral insert (4) is separated from the glenoid sphere (3) while the arm is pulled in the distal humerus direction, it shows that the deltoid tension is insufficient. After all controls are performed, the joint gaps are washed and the residues are cleaned.
In the proximal humeral component (5) as the main element of the present invention, the peripheral suture holes (5.1) are found as located perpendicular to the proximal front surface different from the suture holes that are embedded to the bone (Figures 3, 4, 5). The rotator muscles in the shoulder are mounted to the prosthesis through suture holes (5.1) by using suture materials (Figure 6). Moreover, there are peripheral suture holes (5.1) opened in a parallel manner to the proximal side surfaces and front surface and equal number of peripheral groove (5.2) in order to pass the suture materials easily. The peripheral suture hole (5.1) openings and channel peripheries (5.3) are rounded in order not to give damage to the suture materials (Figure 5). Required amount of suture materials can be sent from the locations seem necessary by means of said peripheral suture holes (5.1). (Figure 6)

Claims

1. Prosthesis used in the orthopedic reverse shoulder operations, characterized in that;
it comprises a proximal humeral component (5) which has at least one peripheral suture hole (5.1) and at least one peripheral groove (5.2).
2. Proximal humeral component (5) according to claim 1 , characterized in that; the peripheral suture holes (5.1) are located perpendicular to the proximal front surface.
3. Proximal humeral component (5) according to claim 1 , characterized in that; the peripheral grooves (5.2) are opened parallel to the proximal side surfaces and front surface.
4. Proximal humeral component (5) according to claim 1 , characterized in that; the peripheral suture hole (5.1) openings and channel peripheries (5.3) are rounded.
PCT/TR2020/050396 2019-05-07 2020-05-07 Novelty in reverse shoulder prostheses WO2020226598A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
TR2019/06795 2019-05-07
TR2019/06795A TR201906795A2 (en) 2019-05-07 2019-05-07 INNOVATION IN REVERSE SHOULDER PROSTHESIS

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6398812B1 (en) * 2000-02-10 2002-06-04 Medidea, Llc Shoulder prosthesis with anatomic reattachment features
AU2014262278A1 (en) * 2010-05-07 2014-12-04 Depuy (Ireland) Rotatable collar for a prosthesis
EP3045149A1 (en) * 2015-01-15 2016-07-20 DePuy Synthes Products, Inc. Modular reverse shoulder orthopaedic implant

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6398812B1 (en) * 2000-02-10 2002-06-04 Medidea, Llc Shoulder prosthesis with anatomic reattachment features
AU2014262278A1 (en) * 2010-05-07 2014-12-04 Depuy (Ireland) Rotatable collar for a prosthesis
EP3045149A1 (en) * 2015-01-15 2016-07-20 DePuy Synthes Products, Inc. Modular reverse shoulder orthopaedic implant

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