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CA2416256A1 - Monopolar constrained acetabular component - Google Patents

Monopolar constrained acetabular component Download PDF

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Publication number
CA2416256A1
CA2416256A1 CA002416256A CA2416256A CA2416256A1 CA 2416256 A1 CA2416256 A1 CA 2416256A1 CA 002416256 A CA002416256 A CA 002416256A CA 2416256 A CA2416256 A CA 2416256A CA 2416256 A1 CA2416256 A1 CA 2416256A1
Authority
CA
Canada
Prior art keywords
liner
constraining ring
assembly according
femoral head
acetabular
Prior art date
Legal status (The legal status 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 status listed.)
Granted
Application number
CA002416256A
Other languages
French (fr)
Other versions
CA2416256C (en
Inventor
William H. Harris
Brian R. Burroughs
Daniel P. Hoeffel
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
General Hospital Corp
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to CA2416256A priority Critical patent/CA2416256C/en
Priority to CA2711010A priority patent/CA2711010C/en
Priority claimed from PCT/US2001/022638 external-priority patent/WO2002009615A2/en
Publication of CA2416256A1 publication Critical patent/CA2416256A1/en
Application granted granted Critical
Publication of CA2416256C publication Critical patent/CA2416256C/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

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    • 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
    • A61F2310/00—Prostheses classified in A61F2/28 or A61F2/30 - A61F2/44 being constructed from or coated with a particular material
    • A61F2310/00005—The prosthesis being constructed from a particular material
    • A61F2310/00011—Metals or alloys
    • A61F2310/00029—Cobalt-based alloys, e.g. Co-Cr alloys or Vitallium
    • 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
    • A61F2310/00—Prostheses classified in A61F2/28 or A61F2/30 - A61F2/44 being constructed from or coated with a particular material
    • A61F2310/00005—The prosthesis being constructed from a particular material
    • A61F2310/00179—Ceramics or ceramic-like structures
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
    • A61L2430/00—Materials or treatment for tissue regeneration
    • A61L2430/24—Materials or treatment for tissue regeneration for joint reconstruction

Landscapes

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

Abstract

The present invention provides monopolar acetabular liners (32, 54) that can enclose a femoral head (14) to form a hip replacement prosthesis (30, 50), wherein the liner (32, 54) has a rim (34) that creates an orifice, wherein the orifice has a diameter that is smaller than the diameter of the femoral head (14), and wherein the liner (32, 54) encompasses greater than 50 percent of the volume of the head (14), wherein a constraining ring (56) can be used in conjunction with the monopolar constrained acetabular liner (32, 54) to provide additional support for the femoral head (14) to stay with the acetabular liner (32, 54) and avoid dislocation. Assemblies and complete prosthetic replacements are also provided. Liners (32, 54) and constraining rings (56) having no, one or more recesses (36) also are provided.

Claims (125)

1. A monopolar acetabular liner that can enclose a femoral head to form a hip replacement prostheses, wherein the liner has a rim that creates an orifice, and wherein the orifice has a diameter that is smaller than the diameter of the femoral head.
2. The liner according to claim 1, wherein the rim extends beyond the center line of the head when the head is enclosed by the liner.
3. The liner according to claim 1, wherein the liner comprises polyethylene.
4. The liner according to claim 3, wherein comprises ultra high molecular weight polyethylene.
5. The liner according to claim 4, wherein ultra high molecular weight polyethylene is cross-linked.
6. The liner according to claim 5, wherein the cross-linking is performed via irradiation.
7. The liner according to claim 1, wherein the femoral head has a large diameter.
8. The liner according to claim 1, wherein the liner has at least one recess.
9. A monopolar acetabular assembly comprising (A) a monopolar acetabular liner that encloses a femoral head, wherein the liner has a rim that creates an orifice, and wherein the orifice has a diameter that is smaller than the diameter of the femoral head; and (B) a metal shell.
10. The assembly according to claim 9, wherein the rim extends beyond the center line of the head when the head is enclosed by the liner.
11. The assembly according to claim 9, wherein the metal shell is made of titanium or chrome cobalt .
12. The assembly according to claim 9, wherein the femoral head has a large diameter.
13. The assembly according to claim 9, wherein the liner has at least one recess.
14. A hip joint replacement assembly comprising (A) a monopolar acetabular liner that encloses a femoral head, wherein the liner has a rim that creates an orifice, and wherein the orifice has a diameter that is smaller than the diameter of the femoral head;

(B) a metal shell; and (C) a femoral head.
15. The replacement assembly according to claim 14, wherein the femoral head is integral with or modular on a femoral stem.
16. The replacement assembly according to claim 14, wherein the femoral head is made of a cobalt chrome alloy, stainless steel, or ceramic.
17. The replacement assembly according to claim 15, wherein the femoral stem is made of a cobalt chrome alloy, stainless steel, or titanium.
18. The replacement assembly according to claim 14, wherein the rim extends beyond the center line of the head when the head is enclosed by the liner.
19. The replacement assembly according to claim 14, wherein the metal shell is made of titanium, stainless steel, or a cobalt chrome alloy.
20. The replacement assembly according to claim 14, wherein the femoral head has a large diameter.
21. The replacement assembly according to claim 14, wherein the liner has at least one recess.
22. A method of replacing a hip in a patient in need thereof, comprising the step of surgically implanting in a patient a monopolar acetabular liner or monopolar component that can enclose a femoral head to form a hip replacement prostheses, wherein the liner has a rim that creates an orifice,
23 and wherein the orifice has a diameter that is smaller than the diameter of the femoral head.

23. The method according to claim 22, wherein a metal shell also is implanted.
24. The method according to claim 22, wherein a femoral head and stem also are implanted.
25. The method according to claim 22, wherein the rim extends beyond the center line of the head when the head is enclosed by the liner.
26. The method according to claim 22, wherein the liner comprises ultra high molecular weight polyethylene.
27. The method according to claim 26, wherein ultra high molecular weight polyethylene is cross-linked.
28. The method according to claim 27, wherein the cross-linking is performed via irradiation.
29. The method according to claim 22, wherein the femoral head has a large diameter.
30. The method according to claim 22, wherein the liner has at least one recess.
31. A monopolar acetabular liner that can enclose a femoral head to form a hip replacement prostheses, wherein the liner has a rim that creates an orifice and the liner has at least one recess, and wherein the orifice has a diameter that is smaller than the diameter of the femoral head.
32. The monopolar acetabular liner according to claim 31, wherein the liner has at least two recesses.
33. A monopolar acetabular assembly comprising (A) a monopolar acetabular liner that encloses a femoral head, wherein the liner has a rim that creates an orifice and the liner has at least one recess, and wherein the orifice has a diameter that is smaller than the diameter of the femoral head; and (B) a metal shell.
34. The monopolar acetabular assembly according to claim 33, wherein the liner has at least two recesses.
35. A hip joint replacement assembly comprising:

(A) a monopolar acetabular liner that encloses a femoral head, wherein the liner has a rim that creates an orifice and the liner has at least one recess, and wherein the orifice has a diameter that is smaller than the diameter of the femoral head;

(B) a metal shell; and (C) a femoral head.
36. The hip joint assembly according to claim 35, wherein the liner has at least two recesses.
37. A method of replacing a hip in a patient in need thereof, comprising the step of surgically implanting in a patient a monopolar acetabular liner or monopolar component that can enclose a femoral head to form a hip replacement prostheses, wherein the liner has a rim that creates an orifice and the liner has at least one recess, and wherein the orifice has a diameter that is smaller than the diameter of the femoral head.
38. The method according to claim 37, wherein the liner has at least two recesses.
39. A constraining ring that is used in conjunction with a monopolar constrained acetabular liner or a cut away monopolar constrained acetabular liner, wherein the ring fits around the perimeter of the monopolar constrained acetabular liner, and wherein the ring is set onto the acetabular liner during the operative procedure after the femoral head is reduced into the acetabular liner.
40. The constraining ring according to claim 39, wherein the shape of the ring is circular.
41. The constraining ring according to claim 39, wherein the ring is made of high strength materials such as cobalt chrome alloy, titanium, or stainless steel.
42. The constraining ring according to claim 39, wherein the ring is a single piece.
43. The constraining ring according to claim 39, has no recess.
44. The constraining ring according to claim 39, has at least one recess.
45. The constraining ring according to claim 39, has at least two recesses.
46. The liner according to claim 39, has no recess.
47. The liner according to claim 39, has at least one recess.
48. The liner according to claim 39, has at least two recesses.
49. A monopolar constrained acetabular liner system with constraining ring assembly comprising:

(A) a monopolar acetabular liner that encloses a femoral head, wherein the liner has a rim that creates an orifice, wherein the orifice has a diameter that is smaller than the diameter of the femoral head, wherein a constraining ring fits around the perimeter of the monopolar constrained acetabular liner, wherein the constraining ring is set onto the acetabular liner during the operative procedure after the femoral head is reduced into the acetabular liner; and (B) a metal shell.
50. The assembly according to claim 49, wherein the constraining ring fastens directly to the polyethylene acetabular liner and has no direct contact with the metal shell into which the liner is set.
51. The assembly according to claim 49, wherein the constraining ring is not dependent on the use of a metal shell hence allowing this system to be used with an acetabular liner which is cemented directly into the acetabulum.
52. The assembly according to claim 49, wherein the constraining ring can be secured to the acetabular liner by means of a number of locking mechanisms.
53. The assembly according to claim 49, wherein the shape of the constraining ring is circular.
54. The assembly according to claim 49, wherein the constraining ring is made of high strength materials such as cobalt chrome alloy, titanium, or stainless steel.
55. The assembly according to claim 49, wherein the constraining ring is a single piece.
56. The assembly according to claim 49, wherein the constraining ring has no recess.
57. The assembly according to claim 49, wherein the constraining ring has at least one recess.
58. The assembly according to claim 49, wherein the constraining ring has at least two recesses.
59. The assembly according to claim 49, wherein the liner has no recess.
60. The assembly according to claim 49, wherein the liner has at least one recess.
61. The assembly according to claim 49, wherein the liner has at least two recesses.
62. A hip joint replacement assembly comprising:

(A) a monopolar acetabular liner that encloses a femoral head, wherein the liner has a rim that creates an orifice, wherein the orifice has a diameter that is smaller than the diameter of the femoral head, wherein a constraining ring fits around the perimeter of the monopolar constrained acetabular liner, wherein the constraining ring is set onto the acetabular liner during the operative procedure after the femoral head is reduced into the acetabular liner;

(B) a metal shell; and (C) a femoral head.
63. The hip joint assembly according to claim 62, wherein the constraining ring fastens directly to the polyethylene acetabular liner and has no direct contact with the metal shell into which the liner is set.
64. The hip joint assembly according to claim 62, wherein the constraining ring is not dependent on the use of a metal shell hence allowing this system to be used with an acetabular liner which is cemented directly into the acetabulum.
65. The hip joint assembly according to claim 62, wherein the constraining ring can be secured to the acetabular liner by means of a number of locking mechanisms.
66. The hip joint assembly according to claim 62, wherein the shape of the constraining ring is circular.
67. The hip joint assembly according to claim 62, wherein the constraining ring is made of high strength materials such as cobalt chrome alloy, titanium, or stainless steel.
68. The hip joint assembly according to claim 62, wherein the constraining ring is a single piece.
69. The hip joint assembly according to claim 62, wherein the constraining ring has no recess.
70. The hip joint assembly according to claim 62, wherein the constraining ring has at least one recess.
71. The hip joint assembly according to claim 62, wherein the constraining ring has at least two recesses.
72. The hip joint assembly according to claim 62, wherein the liner has no recess.
73. The hip joint assembly according to claim 62, wherein the liner has at least one recess.
74. The hip joint assembly according to claim 62, wherein the liner has at least two recesses.
75. A method of replacing a hip in a patient in need thereof, comprising the step of surgically implanting in a patient a monopolar acetabular liner or monopolar component that can enclose a femoral head to form a hip replacement prostheses, wherein the liner has a rim that creates an orifice, wherein the orifice has a diameter that is smaller than the diameter of the femoral head, wherein a constraining ring is used with the monopolar constrained acetabular liner or a cut away monopolar constrained acetabular liner, wherein the constraining ring fits around the perimeter of the constrained acetabular liner, wherein the constraining ring can be set onto the acetabular liner during the operative procedure after the femoral head is reduced into the acetabular liner.
76. The method according to claim 75, wherein the constraining ring fastens directly to the polyethylene acetabular liner and has no direct contact with the metal shell into which the liner is set.
77. The method according to claim 75, wherein the constraining ring is not dependent on the use of a metal shell hence allowing this system to be used with an acetabular liner which is cemented directly into the acetabulum.
78. The method according to claim 75, wherein the constraining ring can be secured to the acetabular liner by means of a number of locking mechanisms.
79. The method according to claim 75, wherein the shape of the constraining ring is circular.
80. The method according to claim 75, wherein the constraining ring is made of high strength materials such as cobalt chrome alloy, titanium, or stainless steel.
81. The method according to claim 75, wherein the constraining ring is a single piece.
82. The method according to claim 75, wherein the constraining ring has no recess.
83. The method according to claim 75, wherein the constraining ring has at least one recess.
84. The method according to claim 75, wherein the constraining ring has at least two recesses.
85. The method according to claim 75, wherein the liner has no recess.
86. The method according to claim 75, wherein the liner has at least one recess.
87. The method according to claim 75, wherein the liner has at least two recesses.
88. A cut away monopolar constrained acetabular liner system with constraining ring assembly comprising: a monopolar acetabular liner that encloses a femoral head, wherein the liner has a rim that creates an orifice, wherein the orifice has a diameter that is smaller than the diameter of the femoral head, wherein a constraining ring is used with the monopolar constrained acetabular liner or the cut away monopolar constrained acetabular liner, wherein the constraining ring fits around the perimeter of the constrained acetabular liner, and wherein the constraining ring is set onto the acetabular liner during the operative procedure after the femoral head is reduced into the acetabular liner.
89. The assembly according to claim 88, wherein the constraining ring fastens directly to the polyethylene acetabular liner.
90. The assembly according to claim 88, wherein the constraining ring is not dependent on the use of a metal shell hence allowing this system to be used with an acetabular liner which is cemented directly into the acetabulum.
91. The assembly according to claim 88, wherein the constraining ring can be secured to the acetabular liner by means of a number of locking mechanisms.
92. The assembly according to claim 88, wherein the shape of the constraining ring is circular.
93. The assembly according to claim 88, wherein the constraining ring is made of high strength materials such as cobalt chrome alloy, titanium, or stainless steel.
94. The assembly according to claim 88, wherein the constraining ring is a single piece.
95. The assembly according to claim 88, wherein the constraining ring has no recess.
96. The assembly according to claim 88, wherein the constraining ring has at least one recess.
97. The assembly according to claim 88, wherein the constraining ring has at least two recesses.
98. The assembly according to claim 88, wherein the liner has no recess.
99. The assembly according to claim 88, wherein the liner has at least one recess.
100. The assembly according to claim 88, wherein the liner has at least two recesses.
101. A hip joint replacement assembly comprising:

(A) a monopolar acetabular liner that encloses a femoral head, wherein the liner has a rim that creates an orifice, wherein the orifice has a diameter that is smaller than the diameter of the femoral head, wherein a constraining ring fits around the perimeter of the monopolar constrained acetabular liner, wherein the constraining ring is set onto the acetabular liner during the operative procedure after the femoral head is reduced into the acetabular liner; and (B) a femoral head.
102. The hip joint assembly according to claim 101, wherein the constraining ring fastens directly to the polyethylene acetabular liner.
103. The hip joint assembly according to claim 101, wherein the constraining ring is not dependent on the use of a metal shell hence allowing this system to be used with an acetabular liner which is cemented directly into the acetabulum.
104. The hip joint assembly according to claim 101, wherein the constraining ring can be secured to the acetabular liner by means of a number of locking mechanisms.
105. The hip joint assembly according to claim 101, wherein the shape of the constraining ring is circular.
106. The hip joint assembly according to claim 101, wherein the constraining ring is made of high strength materials such as cobalt chrome alloy, titanium, or stainless steel.
107. The hip joint assembly according to claim 101, wherein the constraining ring is a single piece.
108. The hip joint assembly according to claim 101, wherein the constraining ring has no.
109. The hip joint assembly according to claim 101, wherein the constraining ring has at least one recess.
110. The hip joint assembly according to claim 101, wherein the constraining ring has at least two recesses.
111. The hip joint assembly according to claim 101, wherein the liner has no recess.
112. The hip joint assembly according to claim 101, wherein the liner has at least one recess.
113. The hip joint assembly according to claim 101, wherein the liner has at least two recesses.
114. A method of replacing a hip in a patient in need thereof, comprising the step of surgically implanting in a patient a monopolar acetabular liner or monopolar component that can enclose a femoral head to form a hip replacement prostheses, wherein the liner has a rim that creates an orifice, wherein the orifice has a diameter that is smaller than the diameter of the femoral head, wherein a constraining ring is used with a monopolar constrained acetabular liner or a cut away monopolar constrained acetabular liner, wherein the constraining ring fits around the perimeter of the constrained liner, wherein the constraining ring can be set onto the acetabular liner during the operative procedure after the femoral head is reduced into the acetabular liner.
115. The method according to claim 114, wherein the constraining ring fastens directly to the polyethylene acetabular liner.
116. The method according to claim 114, wherein the constraining ring is not dependent on the use of a metal shell hence allowing this system to be used with an acetabular liner which is cemented directly into the acetabulum.
117. The method according to claim 114, wherein the constraining ring can be secured to the acetabular liner by means of a number of locking mechanisms.
118. The method according to claim 114, wherein the shape of the constraining ring is circular.
119. The method according to claim 114, wherein the constraining ring is made of high strength materials such as cobalt chrome alloy, titanium, or stainless steel.
120. The method according to claim 114, wherein the constraining ring is a single piece.
121. The method according to claim 114, wherein the constraining ring has no recess.
122. The method according to claim 114, wherein the constraining ring has at least one recess.
123. The method according to claim 114, wherein the constraining ring has at least two recesses.
124. The method according to claim 114, wherein the liner has no recess.
125. The method according to claim 114, wherein the liner has at least one recess.
CA2416256A 2000-07-31 2001-07-19 Monopolar constrained acetabular component Expired - Lifetime CA2416256C (en)

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CA2711010A CA2711010C (en) 2000-07-31 2001-07-19 Monopolar constrained acetabular component

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US22204900P 2000-07-31 2000-07-31
US60/222,049 2000-07-31
US23434500P 2000-09-22 2000-09-22
US60/234,345 2000-09-22
US28952801P 2001-05-09 2001-05-09
US60/289,528 2001-05-09
CA2416256A CA2416256C (en) 2000-07-31 2001-07-19 Monopolar constrained acetabular component
PCT/US2001/022638 WO2002009615A2 (en) 2000-07-31 2001-07-19 Acetabular components that decrease risks of dislocation

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107638233A (en) * 2017-10-27 2018-01-30 北京大学国际医院 The anti-dislocation hip prosthesis and its manufacture method of a kind of 3D printing femoral head

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107638233A (en) * 2017-10-27 2018-01-30 北京大学国际医院 The anti-dislocation hip prosthesis and its manufacture method of a kind of 3D printing femoral head

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