US3656186A - Elbow joint prosthesis - Google Patents

Elbow joint prosthesis Download PDF

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US3656186A
US3656186A US9678A US3656186DA US3656186A US 3656186 A US3656186 A US 3656186A US 9678 A US9678 A US 9678A US 3656186D A US3656186D A US 3656186DA US 3656186 A US3656186 A US 3656186A
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arm
hinge part
plane
bearing member
generally
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US9678A
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Roger Dee
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National Research Development Corp UK
National Research Development Corp of India
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National Research Development Corp UK
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    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS 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
    • A61F2/00Filters 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
    • A61F2/02Prostheses implantable into the body
    • A61F2/30Joints
    • A61F2/38Joints for elbows or knees
    • A61F2/3804Joints for elbows or knees for elbows
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS 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
    • A61F2/00Filters 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
    • A61F2/02Prostheses implantable into the body
    • A61F2/30Joints
    • A61F2002/30001Additional features of subject-matter classified in A61F2/28, A61F2/30 and subgroups thereof
    • A61F2002/30621Features concerning the anatomical functioning or articulation of the prosthetic joint
    • A61F2002/30624Hinged joint, e.g. with transverse axle restricting the movement

Definitions

  • ABSTRACT A prosthetic elbow joint device comprising a first arm curved in two mutually transverse planes and formed with a first hinge part at one end thereof, and a second arm curved in one plane and formed with a second hinge part at one end thereof, the arms and hinge parts being adapted for securement by cement with the first and second arms respectively located in the ulna and humerus in intramedullary manner, the first hinge part seated on a shoulder cut in the olecranon, and the two parts disposed for mutual pivotal connection.
  • elbow joint prosthesis has been proposed but these are not always completely satisfactory in practice.
  • the proposed forms normally involve provision of members which are to be effectively secured within the humerus and ulna by a force fit. This involves a risk of bone damage or, if this risk is to be reduced, the manufacture of a custom-built prosthesis for each recipient.
  • the proposed forms normally involve removal of a substantial part of the olecranon to provide space for the hinge or pivot joint of the prosthesis, but this results in the joint being largely unprotected from any impact on the elbow as when bending and resting the same.
  • an object of the present invention is to reduce the above difficulties and, to this end, the invention provides a prosthetic elbow joint device comprising a first arm curved in two mutually transverse planes and formed with a first hinge part at one end thereof, and a second arm curved in one plane and formed with a second hinge part at one end thereof, the arms and hinge parts being adapted for securement by cement with the first and second arms respectively located in the ulna and humerus in intramedullary manner, the first hinge part seated on a shoulder cut in the olecranon, and the two hinge parts disposed for mutual pivotal connection.
  • FIGS. 1, 2 and 3 respectively illustrate in plan, side and underneath views the first arm and hinge parts of one embodiment of the invention.
  • Figs. 4, and 6 similarly illustrate the associated second arm and hinge parts.
  • Figure 7 illustrates a pivot pin for connection of the two hinge parts.
  • the arm 1 is of generally rounded corner, trapezoidal cross-sectional shape and with similarly rounded edges at its outer or free end which is chamfered on one side. At its other end, the arm is integrally connected with the first hinge part 2.
  • the hinge part 2 has a base 3 which is generally flat apart from an increase in thickness at 4 by divergence of one side 5 surface from the other 6.
  • the arm 1 joins the hinge part 2 partly in end-to-end relation at this thicker base portion, and by passing below such portion partway along the non-divergent surface 6 of the base. This last part of the arm is transversely grooved at 7 to assist securement by cement.
  • a flange 8 projects upwardly from the surface 6 of base 3, this flange being generally aligned with the adjacent part of arm 1, and being of generally triangular shape in side view.
  • the flange 8 is transversely bored at 9.
  • the second arm 10 is seen to be curved in only one plane.
  • Arm 10 is of generally rounded comer, rectangular shape in cross-section along most of its length to its free end.
  • the arm 10 is integral with its associated hinge part 11.
  • the arm 10 joins the hinge part 11 wholly in end-to-end relation, the relevant arm end being outwardly flared and of rounded cross-sectional shape except its lower surface.
  • the arm 10 is provided with two lugs 12 extending one from each side of the arm adjacent its hinge part.
  • the hinge part 11 comprises a generally U-shaped portion, with U-base 13 joined at its center across the inner end of arm 10, and U-arms 14 extending away from the arm 10.
  • the U- arms are bridged, for part of their length from the U-base, by a web 15 which is flush with the arms on one side, but inclined on the other so that the web tapers towards the U-arm outer ends. Beyond the web, the U-arms are transversely bored at 16.
  • the hinge parts are so shaped and dimensioned for alignment of the bores 9 and 16 with the U-portion of part 11 embracing the flange 8 or part 2, and the inclined surface of web 15 facing the outermost such surface of flange 8.
  • the hinge parts are connected by a pin, such as that of FIG. 7, which is passed through the bores and upset at its ends by a G-clamp or other suitable tool.
  • the curvature of the arms 1 and 11) is so designed that, as noted above, they can be freely inserted in the ulna and humerus, with the base portion 3 of hinge part 2 seated on a shoulder cut in the olecranon and the hinge parts connected.
  • the seating of base 3 is indicated in Figure 2 relative to the olecranon shown in chain line. securement will be by cement, such as by use of suitable acrylic resin, and this is enhanced by the slotting at 7 and the lugs 12.
  • This mode of implantation is advantageous in that the arms 1 and 10 can be of reduced dimensions relative to force-fitting arms, and so permit a few standard size parts to be provided for use with a relatively large range of bone sizes. It might be mentioned in this connection that the only basic variation required in practice is one of geometry, since the illustrated arm 1 is for a right hand side ulna and would have its curvature reversed as seen in FIGS. 1 and 3 for a left hand side ulna.
  • a further advantage is that retention of part of the olecranon as a seat for the hinge serves to avoid effectively direct impact on the hinge when the elbow is bent.
  • this is preferably of chrome cobalt alloy such as that under the name "Vinertia which is well suited to this application.
  • An alternative, although less preferable, is stainless steel.
  • a prosthetic elbow joint device comprising:
  • a hinge assembly including a first hinge part and a second hinge part pivotally coupled for relative rotation about a generally transverse axis therethrough;
  • first rigid intramedullary arm extending from said first hinge part, said first arm following a compound curvature along a lower, first portion thereof, disposed nearer said first hinge part, with a first component of curvature out" wardly convex and laterally offsetting outwardly relative to a first plane including said rotation axis and a second component of curvature rearwardly convex and offsetting forwardly relative to a second plane mutually perpendicu lar to both said first plane and said rotation axis, and said first arm having an upper, free end second portion with a generally straight longitudinal axis substantially parallel to said second plane and orthogonal with said rotation axis;
  • said hinge assembly being wholly off-set forwardly from said longitudinal axis of said first arm free end portion.
  • a device according to claim 1 wherein said second arm is curved rearwardly along substantially the whole of its length relative to said second plane, but in the opposite sense to said second component of curvature of said first arm, while said second arm is substantially straight in said first plane.
  • said first hinge part comprises a base member portion with a generally flat undersurface parallel to said longitudinal axis, and a first bored bearing member portion upstanding from a generally centralized zone of the opposite surface of said base portion
  • said second hinge part comprises a pair of second bored bearing member portions projecting in fork-like manner from a common portion joined with said second arm, said second bearing member portions embracing said first bored bearing member portion with their respective bores all aligned, and a pivot pin passing through and rotatably secured in said bores.
  • said first bearing member portion is of generally triangular shape in said common plane with the triangle base joined with said base member portion and the free apex rounded, and wherein said second bearing member portions are bridged by a web joined with said common portion and chamfered in generally complementary manner with the adjacent side of said triangular shape when said arms are oppositely directed.

Abstract

A prosthetic elbow joint device comprising a first arm curved in two mutually transverse planes and formed with a first hinge part at one end thereof, and a second arm curved in one plane and formed with a second hinge part at one end thereof, the arms and hinge parts being adapted for securement by cement with the first and second arms respectively located in the ulna and humerus in intramedullary manner, the first hinge part seated on a shoulder cut in the olecranon, and the two parts disposed for mutual pivotal connection.

Description

United States Patent Dee [15.1 3,656,186 [45] Apr. 18, 1972 [54] ELBOW JOINT PROSTHESIS [72] Inventor: Roger Dee, London, England [73] Assignee: National Research Development Corporation, London, England [22] Filed: Feb. 10,1970
[21] App]. No.: 9,678
[30] Foreign Application Priority Data Feb. 18, 1969 Great Britain ..8,855/69 [52] US. Cl. ..3/1, 128/92 C [51] Int. Cl. ..A61f1/24 [58] Field ofSearch ..128/92 R,92 BC,92 C, 92 CA; 3/1; 287/14, 96, 100
[56] References Cited UNITED STATES PATENTS 2,696,817 12/1954 Prevo ..128/92 C 2,668,531 2/1954 Haboush ..128/92 CA FOREIGN PATENTS OR APPLICATIONS 482,509 7/1953 1,506,594 11/1967 France ..128/92 C OTHER PUBLICATIONS Arthroplasty of the Knee by L. G. P. Shiers, The Journal of Bone & Joint Surgery, Vol. 363, No, 4, Nov. 1954, page 554 & 555.
Primary Examiner-Richard A. Gaudet Assistant Examiner-Ronald L. F rinks Attorney-Cushman, Darby and Cushman [5 7] ABSTRACT A prosthetic elbow joint device comprising a first arm curved in two mutually transverse planes and formed with a first hinge part at one end thereof, and a second arm curved in one plane and formed with a second hinge part at one end thereof, the arms and hinge parts being adapted for securement by cement with the first and second arms respectively located in the ulna and humerus in intramedullary manner, the first hinge part seated on a shoulder cut in the olecranon, and the two parts disposed for mutual pivotal connection.
4 Claims, 7 Drawing Figures Italy ..128/92 CA ELBOW JOINT PROSTHESIS Various forms of elbow joint prosthesis have been proposed but these are not always completely satisfactory in practice. The proposed forms normally involve provision of members which are to be effectively secured within the humerus and ulna by a force fit. This involves a risk of bone damage or, if this risk is to be reduced, the manufacture of a custom-built prosthesis for each recipient. Also, the proposed forms normally involve removal of a substantial part of the olecranon to provide space for the hinge or pivot joint of the prosthesis, but this results in the joint being largely unprotected from any impact on the elbow as when bending and resting the same.
An object of the present invention is to reduce the above difficulties and, to this end, the invention provides a prosthetic elbow joint device comprising a first arm curved in two mutually transverse planes and formed with a first hinge part at one end thereof, and a second arm curved in one plane and formed with a second hinge part at one end thereof, the arms and hinge parts being adapted for securement by cement with the first and second arms respectively located in the ulna and humerus in intramedullary manner, the first hinge part seated on a shoulder cut in the olecranon, and the two hinge parts disposed for mutual pivotal connection.
In order that the invention may be more clearly understood, the same will now be described by way of example with reference to the accompanying drawings, in which:
FIGS. 1, 2 and 3 respectively illustrate in plan, side and underneath views the first arm and hinge parts of one embodiment of the invention.
Figs. 4, and 6 similarly illustrate the associated second arm and hinge parts.
Figure 7 illustrates a pivot pin for connection of the two hinge parts.
Considering Figures 1 to 3, comparison of the side view with the other views clearly indicates curvature of the first arm 1 in two mutually perpendicular planes. The arm 1 is of generally rounded corner, trapezoidal cross-sectional shape and with similarly rounded edges at its outer or free end which is chamfered on one side. At its other end, the arm is integrally connected with the first hinge part 2.
The hinge part 2 has a base 3 which is generally flat apart from an increase in thickness at 4 by divergence of one side 5 surface from the other 6. The arm 1 joins the hinge part 2 partly in end-to-end relation at this thicker base portion, and by passing below such portion partway along the non-divergent surface 6 of the base. This last part of the arm is transversely grooved at 7 to assist securement by cement.
A flange 8 projects upwardly from the surface 6 of base 3, this flange being generally aligned with the adjacent part of arm 1, and being of generally triangular shape in side view. The flange 8 is transversely bored at 9.
Turning now to FIGS. 4 to 6, the second arm 10 is seen to be curved in only one plane. Arm 10 is of generally rounded comer, rectangular shape in cross-section along most of its length to its free end. Also, the arm 10 is integral with its associated hinge part 11. However, the arm 10 joins the hinge part 11 wholly in end-to-end relation, the relevant arm end being outwardly flared and of rounded cross-sectional shape except its lower surface. In place of the grooving of arm 1 to assist securement, the arm 10 is provided with two lugs 12 extending one from each side of the arm adjacent its hinge part.
The hinge part 11 comprises a generally U-shaped portion, with U-base 13 joined at its center across the inner end of arm 10, and U-arms 14 extending away from the arm 10. The U- arms are bridged, for part of their length from the U-base, by a web 15 which is flush with the arms on one side, but inclined on the other so that the web tapers towards the U-arm outer ends. Beyond the web, the U-arms are transversely bored at 16.
The hinge parts are so shaped and dimensioned for alignment of the bores 9 and 16 with the U-portion of part 11 embracing the flange 8 or part 2, and the inclined surface of web 15 facing the outermost such surface of flange 8. The hinge parts are connected by a pin, such as that of FIG. 7, which is passed through the bores and upset at its ends by a G-clamp or other suitable tool.
The curvature of the arms 1 and 11) is so designed that, as noted above, they can be freely inserted in the ulna and humerus, with the base portion 3 of hinge part 2 seated on a shoulder cut in the olecranon and the hinge parts connected. The seating of base 3 is indicated in Figure 2 relative to the olecranon shown in chain line. securement will be by cement, such as by use of suitable acrylic resin, and this is enhanced by the slotting at 7 and the lugs 12.
This mode of implantation is advantageous in that the arms 1 and 10 can be of reduced dimensions relative to force-fitting arms, and so permit a few standard size parts to be provided for use with a relatively large range of bone sizes. It might be mentioned in this connection that the only basic variation required in practice is one of geometry, since the illustrated arm 1 is for a right hand side ulna and would have its curvature reversed as seen in FIGS. 1 and 3 for a left hand side ulna.
A further advantage is that retention of part of the olecranon as a seat for the hinge serves to avoid effectively direct impact on the hinge when the elbow is bent.
Regarding manufacture of the prosthesis, this is preferably of chrome cobalt alloy such as that under the name "Vinertia which is well suited to this application. An alternative, although less preferable, is stainless steel.
Iclaim:
1. A prosthetic elbow joint device comprising:
a hinge assembly including a first hinge part and a second hinge part pivotally coupled for relative rotation about a generally transverse axis therethrough;
a first rigid intramedullary arm extending from said first hinge part, said first arm following a compound curvature along a lower, first portion thereof, disposed nearer said first hinge part, with a first component of curvature out" wardly convex and laterally offsetting outwardly relative to a first plane including said rotation axis and a second component of curvature rearwardly convex and offsetting forwardly relative to a second plane mutually perpendicu lar to both said first plane and said rotation axis, and said first arm having an upper, free end second portion with a generally straight longitudinal axis substantially parallel to said second plane and orthogonal with said rotation axis;
and a second rigid intramedullary arm extending from said second hinge part;
said hinge assembly being wholly off-set forwardly from said longitudinal axis of said first arm free end portion.
2. A device according to claim 1 wherein said second arm is curved rearwardly along substantially the whole of its length relative to said second plane, but in the opposite sense to said second component of curvature of said first arm, while said second arm is substantially straight in said first plane.
3. A device according to claim 1 wherein said first hinge part comprises a base member portion with a generally flat undersurface parallel to said longitudinal axis, and a first bored bearing member portion upstanding from a generally centralized zone of the opposite surface of said base portion, and wherein said second hinge part comprises a pair of second bored bearing member portions projecting in fork-like manner from a common portion joined with said second arm, said second bearing member portions embracing said first bored bearing member portion with their respective bores all aligned, and a pivot pin passing through and rotatably secured in said bores.
4. A device according to claim 3 wherein said first bearing member portion is of generally triangular shape in said common plane with the triangle base joined with said base member portion and the free apex rounded, and wherein said second bearing member portions are bridged by a web joined with said common portion and chamfered in generally complementary manner with the adjacent side of said triangular shape when said arms are oppositely directed.

Claims (4)

1. A prosthetic elbow joint device comprising: a hinge assembly including a first hinge part and a second hinge part pivotally coupled for relative rotation about a generally transverse axis therethrough; a first rigid intramedullary arm extending from said first hinge part, said first arm following a compound curvature along a lower, first portion thereof, disposed nearer said first hinge part, with a first component of curvature outwardly convex and laterally offsetting outwardly relative to a first plane including said rotation axis and a second component of curvature rearwardly convex and offsetting forwardly relative to a second plane mutually perpendicular to both said first plane and said rotation axis, and said first arm having an upper, free end second portion with a generally straight longitudinal axis substantially parallel to said second plane and orthogonal with said rotation axis; and a second rigid intramedullary arm extending from said second hinge part; said hiNge assembly being wholly off-set forwardly from said longitudinal axis of said first arm free end portion.
2. A device according to claim 1 wherein said second arm is curved rearwardly along substantially the whole of its length relative to said second plane, but in the opposite sense to said second component of curvature of said first arm, while said second arm is substantially straight in said first plane.
3. A device according to claim 1 wherein said first hinge part comprises a base member portion with a generally flat undersurface parallel to said longitudinal axis, and a first bored bearing member portion upstanding from a generally centralized zone of the opposite surface of said base portion, and wherein said second hinge part comprises a pair of second bored bearing member portions projecting in fork-like manner from a common portion joined with said second arm, said second bearing member portions embracing said first bored bearing member portion with their respective bores all aligned, and a pivot pin passing through and rotatably secured in said bores.
4. A device according to claim 3 wherein said first bearing member portion is of generally triangular shape in said common plane with the triangle base joined with said base member portion and the free apex rounded, and wherein said second bearing member portions are bridged by a web joined with said common portion and chamfered in generally complementary manner with the adjacent side of said triangular shape when said arms are oppositely directed.
US9678A 1969-02-18 1970-02-10 Elbow joint prosthesis Expired - Lifetime US3656186A (en)

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DE (1) DE2007214C3 (en)
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GB (1) GB1305391A (en)

Cited By (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3760427A (en) * 1972-03-24 1973-09-25 R Schultz Surgically implantable prosthetic joint
US3772709A (en) * 1972-06-15 1973-11-20 A Swanson Prosthetic joint
US3813700A (en) * 1973-04-16 1974-06-04 S Tennant Prosthetic knee device
US3816854A (en) * 1973-07-03 1974-06-18 A Schlein Prosthesis for total arthroplasty of the elbow joint
US3852831A (en) * 1973-01-31 1974-12-10 Nat Res Dev Endoprosthetic elbow joint
US3879766A (en) * 1972-10-19 1975-04-29 Nat Res Dev Endoprosthetic bone joint device
US3991425A (en) * 1975-11-20 1976-11-16 Minnesota Mining And Manufacturing Company Prosthetic bone joint devices
US4008495A (en) * 1974-07-03 1977-02-22 National Research Development Corporation Prosthetic bone joint devices
US4187559A (en) * 1975-04-04 1980-02-12 Sybron Corporation Body joint endoprosthesis
US4383337A (en) * 1980-10-22 1983-05-17 Zimmer Usa, Inc. Elbow prosthesis
US5997543A (en) * 1997-02-21 1999-12-07 Biomet Limited Surgical instrumentation
US6162253A (en) * 1997-12-31 2000-12-19 Iowa State University Research Foundation, Inc. Total elbow arthroplasty system
US6306171B1 (en) 1998-12-09 2001-10-23 Iowa State University Research Foundation, Inc. Total elbow arthroplasty system
US20030181984A1 (en) * 2002-02-14 2003-09-25 Abendschein Walter F. Method and instrumentation for patello-femoral joint replacement
US20050049710A1 (en) * 2003-08-28 2005-03-03 O'driscoll Shawn W. Prosthesis for partial replacement of an articulating surface on bone
US20050216090A1 (en) * 2004-03-11 2005-09-29 O'driscoll Shawn W Systems for bone replacement
US9155626B2 (en) 2012-09-10 2015-10-13 Acumed Llc Radial head prosthesis with floating articular member
US9763792B2 (en) 2015-10-01 2017-09-19 Acumed Llc Radial head prosthesis with rotate-to-lock interface

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4301553A (en) * 1975-08-15 1981-11-24 United States Surgical Corporation Prosthetic knee joint
SE409170B (en) * 1976-06-28 1979-08-06 Hagert Carl Goran LEDPROTES
US4332037A (en) * 1980-12-15 1982-06-01 Hospital For Joint Disease Orthopaedic Institute Artificial joint
DE3223925C2 (en) * 1982-06-26 1986-07-31 Feldmühle AG, 4000 Düsseldorf Implantable elbow joint
DE9216202U1 (en) * 1992-11-28 1993-01-14 S + G Implants Gmbh, 2400 Luebeck, De
EP1252870A1 (en) 2001-04-25 2002-10-30 Waldemar Link (GmbH & Co.) Knee prosthesis with a bending hinge

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2668531A (en) * 1952-02-15 1954-02-09 Edward J Haboush Prosthesis for hip joint
US2696817A (en) * 1952-04-30 1954-12-14 Samuel B Prevo Prosthetic elbow joint
DE976768C (en) * 1951-07-01 1964-04-16 Frans Donatus Dr Me Timmermans Alloplastic prostheses
FR1506594A (en) * 1966-11-10 1967-12-22 Benoist Et Girard Reunis Total hip replacement

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE976768C (en) * 1951-07-01 1964-04-16 Frans Donatus Dr Me Timmermans Alloplastic prostheses
US2668531A (en) * 1952-02-15 1954-02-09 Edward J Haboush Prosthesis for hip joint
US2696817A (en) * 1952-04-30 1954-12-14 Samuel B Prevo Prosthetic elbow joint
FR1506594A (en) * 1966-11-10 1967-12-22 Benoist Et Girard Reunis Total hip replacement

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
Arthroplasty of the Knee by L. G. P. Shiers, The Journal of Bone & Joint Surgery, Vol. 36B, No. 4, Nov. 1954, page 554 & 555. *

Cited By (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3760427A (en) * 1972-03-24 1973-09-25 R Schultz Surgically implantable prosthetic joint
US3772709A (en) * 1972-06-15 1973-11-20 A Swanson Prosthetic joint
US3879766A (en) * 1972-10-19 1975-04-29 Nat Res Dev Endoprosthetic bone joint device
US3852831A (en) * 1973-01-31 1974-12-10 Nat Res Dev Endoprosthetic elbow joint
US3813700A (en) * 1973-04-16 1974-06-04 S Tennant Prosthetic knee device
US3816854A (en) * 1973-07-03 1974-06-18 A Schlein Prosthesis for total arthroplasty of the elbow joint
US4008495A (en) * 1974-07-03 1977-02-22 National Research Development Corporation Prosthetic bone joint devices
US4187559A (en) * 1975-04-04 1980-02-12 Sybron Corporation Body joint endoprosthesis
US3991425A (en) * 1975-11-20 1976-11-16 Minnesota Mining And Manufacturing Company Prosthetic bone joint devices
US4383337A (en) * 1980-10-22 1983-05-17 Zimmer Usa, Inc. Elbow prosthesis
US5997543A (en) * 1997-02-21 1999-12-07 Biomet Limited Surgical instrumentation
US6162253A (en) * 1997-12-31 2000-12-19 Iowa State University Research Foundation, Inc. Total elbow arthroplasty system
US6306171B1 (en) 1998-12-09 2001-10-23 Iowa State University Research Foundation, Inc. Total elbow arthroplasty system
US20030181984A1 (en) * 2002-02-14 2003-09-25 Abendschein Walter F. Method and instrumentation for patello-femoral joint replacement
US20090326660A1 (en) * 2002-02-14 2009-12-31 Biomet Manufacturing Corp. Method and Instrumentation for Patello-Femoral Joint Replacement
US8226726B2 (en) 2002-02-14 2012-07-24 Biomet Manufacturing Corp. Method and instrumentation for patello-femoral joint replacement
US20050049710A1 (en) * 2003-08-28 2005-03-03 O'driscoll Shawn W. Prosthesis for partial replacement of an articulating surface on bone
US20050216090A1 (en) * 2004-03-11 2005-09-29 O'driscoll Shawn W Systems for bone replacement
US7608110B2 (en) 2004-03-11 2009-10-27 O'driscoll Shawn W Systems for bone replacement
US9155626B2 (en) 2012-09-10 2015-10-13 Acumed Llc Radial head prosthesis with floating articular member
US9707084B2 (en) 2012-09-10 2017-07-18 Acumed Llc Radial head prosthesis with floating articular member
US9763792B2 (en) 2015-10-01 2017-09-19 Acumed Llc Radial head prosthesis with rotate-to-lock interface

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DE2007214B2 (en) 1979-05-23
FR2035459A5 (en) 1970-12-18
DE2007214C3 (en) 1980-01-17
GB1305391A (en) 1973-01-31
CH520499A (en) 1972-03-31
DE2007214A1 (en) 1970-09-03

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