Search Images Maps Play YouTube News Gmail Drive More »
Sign in
Screen reader users: click this link for accessible mode. Accessible mode has the same essential features but works better with your reader.


  1. Advanced Patent Search
Publication numberUS2719522 A
Publication typeGrant
Publication date4 Oct 1955
Filing date8 Jul 1952
Priority date8 Jul 1952
Publication numberUS 2719522 A, US 2719522A, US-A-2719522, US2719522 A, US2719522A
InventorsStephen S Hudack
Original AssigneeStephen S Hudack
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Articular replacement
US 2719522 A
Abstract  available in
Previous page
Next page
Claims  available in
Description  (OCR text may contain errors)

Oct. 4, 1955 5 s, HUDAcK 2,719,522

ARTICULAR REPLACEMENT Filed July 8, 1952 INVEN 575mm 5 Hum (34mm 6. m

H15 flTTOK V Y United States Patent ARTICULAR REPLACEMENT Stephen S. Hudack, Enumclaw, Wash., assignor, by mesne assignments, to the United States of America as represented by the Secretary of the Navy Application July 8, 1952, Serial No. 297,742

Claims. (Cl. 128-92) This invention relates to improvements in osteal appliances, and more particularly pertains to improvements in articular replacements for surgically excised bone.

Where it becomes necessary to excise surgically a part of a human bone and to replace the excised element with an osteal appliance, several desiderata must be considered. The structural strength of live bone must be provided in the resultant compound of live bone and replacement element. The replacement element must be able to withstand the constant minute vibratory muscular strains that will be imposed. Such element must also be unaffected by the highly corrosive chemical and electro lytic action in the body.

Particularly where an articular replacement is involved, there must be a dispersion of stress on the host tissue, as by decreasing the angle of the neck, expanding the surface area of the host tissue to avoid undue stress concentration and by elimination of screw-fixation techniques. Undisturbed vascular supply to the host tissue taking the compression strain must be maintained, since preservation of the bone element with impaired blood supply leads to necrosis and collapse. In addition, in femoral replacements, there must be maintenance or restitution of form and function, with preservation and reattachment, insofar as possible, of the ilio-psoas groups, the rectus femoris, the glutei groups, the tensor fascia femoris and the small external rotator muscles.

The principal object of this invention is to provide an osteal appliance affording a substantial equivalent and a substitute for surgically excised bone.

Another object is to provide an articular replacement for surgically excised bone.

Still another object is to provide an articular replacement substantially equivalent in structural strength, resistance to vibration, and chemically and electrolytically inert quality to human bone, wherein stress dispersion, affording of optimum vascular supply to the host tissue, and maintenance of restitution of form and function are achieved.

Other objects and many of the attendant advantages of this invention will be readily appreciated as the same becomes better understood by reference to the following detailed description when considered in connection with the accompanying drawing wherein:

Fig. 1 is an elevation of a portion of the ilium and a partially excised femur with fixation thereinbetween of an articular replacement, showing a preferred embodiment of the invention. (Relevant musculature is omitted for purposes of clarity.)

Fig. 2 is an enlarged side elevation of the articular replacement shown in Fig. 1;

Fig. 3 is a section taken on the line 33 of Fig. 2;

Pi g. 4 is a section taken on the line 44 of Fig. 2;

Fig. 5 is a section taken on the line 55 of Fig. 2; and

Fig. 6 is a section taken on the line 66 of Fig. 2.

Similar numerals refer to similar parts throughout the several views.

The articular replacement comprises a head 13 and 2,719,522 Patented Oct. 4, 1955 shank 14 adapted to be seated in a femur 18 the upper portion of which has been excised. The head 13 is preferably a cured methyl methacrylate polymer having no undiffused monomers, dimers or trimers, no plasticizer contaminant, and no bubbles, craze marks or other evidence of internal strain. Said head 13 comprises a substantially spherical or bulbous femoral head portion 15 having substantially the diameter of the excised femoral head to assure facile articulation in the cotyloid cavity of the innominate bone 16. Said head portion 15 flares into a substantially cylindrical throat portion 17 somewhat below the major dimension thereof, the axes of the head and throat portions defining an angle substantially equal to the corresponding angle of the excised portion of the femur.

A first fin or car 19 that extends radially from the throat portion at the center of the lateral side thereof and flares into the head at all meeting surfaces is provided with a plurality of holes 21 for the insertion of selected muscles having their origin in the innominate bone. Additional fins or cars 23 and 25 extend radially from the throat portion, each at a radial angle of approximately 45 from the ear 19 to provide a general symmetry, and each of said ears 23 and 25 flares into the head at all meeting surfaces. A plurality of holes 27 in ear 23 and a plurality of holes 29 in ear 25 are provided for the insertion of selected muscles having their origin in the innominate bone. The shank 14 is preferably a hexamethylene diamine adipate polymer such as the Dupont nylon formula 10,001 fabricated by the Polymer Corp. of Reading, Pa. It must be free of internal strain, quick-cooled to prevent crystallization that gives a predisposition to brittleness and radial fracture, and must be so fabricated as to be uncontaminated by other plastics or by other nylon formulas which may contain irritative impurities. Said shank 14 comprises a threaded stud 31 that extends above the upper face 33 to mate with an internally threaded bore 35 in the throat portion 17 and secure said shank in precise and coextensive abutment with the lower face 37 of the said throat portion 17, a generally frusto-conical intermediate portion 39 having smooth opposed flats 41 and a plurality of symmetrical grooves or flutes 43 extending longitudinally along the surface thereof, and an elongated tapered end portion 45 having a plurality of annular grooves or flutes 47. Said intermediate portion 39 and end portion 45 are integral elements characterized by a smooth transition with their respective meeting ends as shown in Figs. 1, 2 and 3. A threaded bore 49 extends through the upper shoulder 51 of the intermediate portion 39 and further eX- tends into the throat portion 17 to receive a molybdenum stainless steel screw 53, primarily to provide a reference marker to indicate post-operatively any rotation of the articular replacement and secondarily to prevent relative rotation of the head 13 and shank 14.

The operative procedure recommended for articular replacement of the upper portion of the femur with the subject device comprises the steps of exposure, excision, seating and closure. In exposure, the anterior Smith-Petersen approach is preferred, since the lateral or posterior approaches do not seem to give enough access to the anterior and mesial acetabulum. Whenever possible, the rectus femoris and its attachment are saved. Adequate detachment from both faces of the innominate bone contributes to ease of dislocation, excision of the femur and revision of the acetabulum. The capsule is then excised as completely as possible to remove diseased and scar tissue and to allow for greater operative flexibility. The amount of femur to be excised is estimated, allowing for restitution of length where possible. (Unless there is tumor or destruction of the greater trochanter it should be preserved. The transection of the femur should be above the lesser ice trochanter when possible. Accurate planographs or distortion-corrected X rays of the normal side (if there is one) also aid in reconstructing to approximately the desired nor ms) The-estimated segment is then excised with or without dislocation, depending upon limitation of movement, posterior scarring deformation and other factors. Where the outer shell of the greater trochanter is saved, the excision of the posterior capsule is then completed. Essentially, such excision dene'rvates the joint and reduces postoperative pain and muscle spasm, making active motion possible on the first postoperative day.

:In seating the subject device, the marrow canal is opened and its ipeculiarities felt out with an intrarnedullary pin. The canal is prepared for the seating and the length of the open gap tested to be sure that the -fit for the head element is :not too snug and that reduction is possible after the seating of the i-ntramedullary portion. The replacement element is seated with the patella straight up and the element rotated externally about 25 degrees. It is then reduced and tested for motion, snugness and stability. (In seating, if fiexion and adduction contracture are present and long standing, the replacement element should be adapted to allow optimum motion. When the anterior acetabulur lip is hypertrophied, it should be revised surgically to allow unimpaired flexion. When the acetabulum is shallow, as in chronic dislocation, it should be deepened to give a stable socket. When the joint is fused or destroyed it should be i e-formed surgically to proportions as nearly normal as possible. The marrow canal of the upper femur should be shaped to fit snugly the upper shank 39 to control torque, and the fit should be good but not right. If fitting is difficult, the upper femur can be split part way longitudinally to expand the marrow canal. The split should of course, be lateral and not long enough to weaken the femur structurally.)

Completing the surgery with the closure, the motor flanges are settled into the trochanteric shell and sutured into place, .pulling the shell anteriorly to snug up the gluteal aponeurosis. Where possible, the reflected lateral portion of the rectus femoris is utilized, being sutured to the anterior limit of the gluteal aponeurosis to stabilize against lateral slipping. The deep covering of the tensor fascia femoris is sutured to the lateral limit of the rectus femoris and the layers closed in. Where the foregoing reconstruction is deemed unstable, immobilization in plaster is effected. Otherwise, only a posterior shell with a cross bar to prevent rotation is used.

Postoperative roen-tgenograms, the objective and subjective postoperative indicia of restoration of function and alleviation of pain, and postmortem examinations have all supported the conclusion that the subject articular replacement accomplishes dispersion of stress on the host tissue, permits undisturbed vascular supply to the host tissue taking the compression strain and affords a striking maintenance or restitution of form and function. Progressive new-bone formations over the flats 41, and in the flutes 43 and grooves 47 is deemed a salient factor in accomplishing these results.

The application of the subject invention to the problem of articular-replacement of the upper part of the humerus, as well as to other bone structure, is apparent. Obvious 1y, many modifications and variations of the present invention are possible in the light of the above teachings.

t is therefore to be understood that within the scope of the appended claims the invention may be practiced otherwise than as specifically described.

I claim:

1. In an articular replacement for a host bone formation consisting of articulated bone structures, a head element of which one bone structure of the formation is host and a shank element of which another bone structure of the formation is host, the head and shank elements being secured to each other rigidly, the shank element comprising a shoulder proximate to the head element and a conical portion extending away from the head element beyond the shoulder, the shank element comprising a tapered portion remote from the head element and extending beyond the conical portion to the end of the shank element, the conical portion comprising lands and grooves alternated circumferentially and extending lengthwise of the shank element, the tapered portion comprising lands and grooves alternated lengthwise and extending transversely of the shank element, the head element being contoured to articulate with its host bone structure of the formation, the shank element being adapted to be projected into the medullary canal 'ofits host bone structure of the formation with its shoulder abutting against the excised end face of its host bone structure and supporting the head element in articulated relationship with its host bone structure of the formation.

2. In an articular replacement as defined in claim 1, the head and shank elements being separate pieces and comprising respective attaching devices companion to each other for securing the head and shank elements to each other rigidly.

3. 'In an articular replacementas defined in claim 1, the head 'elementcomprisingdevices located to be engaged by host musculature having-origin in the host bone formation.

4. In an articular replacement asdefined in claim 2, the head element consisting of a cured methyl methacrylate polymer, and the shank element consisting of a hexamethylene diamine adipate polymer.

5. An articular replacement comprising a head element having a bulbous :portion adapted to be seated for articulation in the cavity of a host bone formation and having a cylindrical portion bearing a plurality of spaced radial fins, a plurality of holes in each of said fins adapted to receive host musculature having origin in said host bone formation, a shank element having a threaded stud extending from an end thereof inserted into a threaded bore in the cylindrical portion of said head element, said shank element having a longitudinally fluted substantially conica'l portion, opposed flats cut in said conical portion and an elongated tapered portion having a multiplicity of annular grooves subtended from said conical portion, said shank element being adapted to be inserted into the medullary canal of a host bone at the excised end face thereof, and a pin threaded through a portion of said shank element and into said head element.

References Cited in the file of this patent FOREIGN PATENTS 837,294 Germany Apr. 21, 1952 989,341 France May 23, 1951 l,O47-,64O France July 22, 1953 OTHER REFERENCES The Journal 'of Bone and Joint Surgery for July 1943, pp. 690-1.

1948 Catalog of Austental Laboratories, Inc., 224 E. 39 street, N. Y. '16, N. Y.; p. 25. Copy in Division 55.

The Journal of Bone and Joint Surgery for October 1951, advertising p. 36.

The Journal of Bone and Joint Surgery for January 195 2, advertising p. 4.

The Journal of the International College of Surgeons, for April 1951, p. 499.

The Journal of Bone and Joint Surgery for October 1952 (paper read at meeting in Chicago on January 20, 1952 pp. 989-90.

Copies of the publications in Scientific Library.

Patent Citations
Cited PatentFiling datePublication dateApplicantTitle
DE837294C *17 Feb 195021 Apr 1952Maison Drapier Van SteenbrugghKnochengelenk-Prothese
FR989341A * Title not available
FR1047640A * Title not available
Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US2781758 *24 Jan 195519 Feb 1957Chevalier Michel JacquesArtificial femoral head
US3067740 *8 Sep 195911 Dec 1962Edward J HaboushHip joint prosthesis
US3715763 *21 Apr 197113 Feb 1973Link WArtificial limb for the knee joint
US3740769 *11 Feb 197126 Jun 1973E HaboushProsthesis for hip joints
US3781917 *12 Oct 19711 Jan 1974Mathys RHip joint prosthesis
US3803641 *30 Dec 197116 Apr 1974Golyakhovsky VEndoprosthesis of shoulder joint
US3848273 *29 Jan 197319 Nov 1974Sulzer AgShank for bone implants
US3874003 *4 Apr 19731 Apr 1975Oscobal AgArtificial hip joint
US3896505 *20 Aug 197329 Jul 1975Franz Donatus TimmermansEndoprosthesis for the hipjoint
US3918441 *17 Sep 197411 Nov 1975Philip E GetscherIntramedullary hip pin
US3964473 *19 Sep 197322 Jun 1976Telectronics Pty. LimitedBone prosthesis
US3996625 *28 Feb 197514 Dec 1976United States Surgical CorporationArtificial hip joint with novel stem
US4059854 *3 Jan 197729 Nov 1977Laure Prosthetics, Inc.Ribbed finger joint implant
US4115875 *19 Apr 197726 Sep 1978Andre RambertHip prosthesis
US4231120 *18 Sep 19784 Nov 1980National Research Development CorporationEndoprosthetic orthopaedic devices
US4292695 *25 Jun 19806 Oct 1981Lord CorporationProsthesis stem
US4314381 *25 Jun 19809 Feb 1982Lord CorporationHip joint prosthesis
US4404691 *25 Feb 198120 Sep 1983Howmedica International Inc.Modular prosthesis assembly
US4511336 *15 Dec 198216 Apr 1985Asahi Kogaku Kogyo Kabushiki KaishaArtificial apatite dental root
US4516569 *5 May 198314 May 1985National Research Development CorporationIntramedullary orthopaedic devices
US4520511 *30 Jul 19824 Jun 1985Paribelli GianezioHip prosthesis with expanding femoral component
US4531915 *14 Sep 198430 Jul 1985Tatum Jr O HiltDental implant
US4549319 *3 Aug 198229 Oct 1985United States Medical CorporationArtificial joint fixation to bone
US4578081 *24 May 198225 Mar 1986Howmedica International, Inc.Bone prosthesis
US4657552 *28 Mar 198514 Apr 1987Emil Schenker AgProsthesis of the hip
US4714475 *19 Feb 198622 Dec 1987S + G Implants GmbhTibial member of a knee joint endoprothesis
US4728334 *29 Aug 19861 Mar 1988Protek AgShaft for hip joint prosthesis
US4784124 *8 Jul 198615 Nov 1988Vereinigte Edelstahlwerke Aktiengesellschaft (Vew)Bone implant for prostheses and tool for inserting the implant into a bone
US4827919 *27 Oct 19869 May 1989Pfizer Hospital Products Group, Inc.Femoral spacer
US4846839 *8 Apr 198811 Jul 1989Joint Medical Products CorporationApparatus for affixing a prosthesis to bone
US4865608 *20 Nov 198712 Sep 1989Brooker Jr Andrew FGrooved endoprosthesis
US4944761 *8 Dec 198931 Jul 1990Sulzer Brothers LimitedBlade-like stem for a femoral head prosthesis
US5002580 *7 Oct 198826 Mar 1991Pfizer Hospital Products Group, Inc.Prosthetic device and method of implantation
US5032133 *23 Jan 199016 Jul 1991Orthovations, Inc.Method and apparatus for expanding a shaft for use in prosthesis
US5062854 *24 Jul 19905 Nov 1991Pfizer Hospital Products GroupProsthetic device and method of implantation
US5080685 *25 May 199014 Jan 1992Boehringer Mannheim CorporationModular hip prosthesis
US5089004 *19 Jan 198818 Feb 1992Osteonics Corp.Prosthetic implant procedure and femoral broach therefor
US5147386 *22 Feb 199015 Sep 1992Techmedica, Inc.Securable pistoning finger prosthesis
US5147408 *19 Jun 199115 Sep 1992Pfizer Hospital Products Group, Inc.Prosthetic device and method of implantation
US5181928 *13 Dec 198926 Jan 1993Boehringer Mannheim CorporationModular hip prosthesis
US5201767 *15 Jul 199113 Apr 1993Johnson & Johnson Orthopaedics, Inc.Fluted-wedge osteal prosthetic component
US5282865 *22 Jun 19921 Feb 1994Osteonics Corp.Humeral shoulder prosthesis
US5286260 *29 May 199215 Feb 1994Depuy Inc.Modular hip prosthesis
US5314479 *18 Nov 199124 May 1994Depuy Inc.Modular prosthesis
US5342366 *19 Feb 199230 Aug 1994Biomet, Inc.Surgical instruments for hip revision
US5370706 *13 Aug 19936 Dec 1994Depuy Inc.Modular hip prosthesis
US5480450 *11 Feb 19932 Jan 1996The General Hospital CorporationMethod and apparatus for reducing interfacial porosity in a cemented femoral prosthesis
US5480453 *18 Jan 19942 Jan 1996Burke; Dennis W.Collar for femoral implant and method and apparatus for installation thereof
US5489309 *6 Jan 19936 Feb 1996Smith & Nephew Richards Inc.Modular humeral component system
US5569255 *26 May 199529 Oct 1996Burke; Dennis W.Method for implanting a prosthetic device into a bone
US5591233 *16 May 19957 Jan 1997Depuy Dupont OrthopaedicsMetal/composite hybrid orthopedic implants
US5624443 *26 May 199529 Apr 1997Burke; Dennis W.Clamp for femoral implant
US5624445 *26 May 199529 Apr 1997Burke; Dennis W.Apparatus for cutting grooves in a bone
US5653765 *3 Jan 19955 Aug 1997Ortho Development CorporationModular prosthesis
US5702485 *16 Feb 199630 Dec 1997Burke; Dennis W.Collared prosthetic device with centering fins
US5725594 *12 Feb 199610 Mar 1998Ortho Development CorporationProximal conical stem
US5725596 *29 Aug 199610 Mar 1998Burke; Dennis W.Clamp for use with a bone prosthesis
US5755811 *4 Apr 199726 May 1998Zimmer, Inc.Prosthetic implant with fins
US5951606 *12 Mar 199714 Sep 1999Burke; Dennis W.Centering device for femoral implant and method and apparatus for implementation thereof
US5961555 *17 Mar 19985 Oct 1999Huebner; Randall J.Modular shoulder prosthesis
US6102953 *13 Nov 199815 Aug 2000Acumed, Inc.Shoulder prosthesis
US616862718 Jan 20002 Jan 2001Acumed, Inc.Shoulder prosthesis
US616862818 Jan 20002 Jan 2001Acumed, Inc.Shoulder Prosthesis
US61798778 Jun 199930 Jan 2001Dennis W. BurkeCentering device for femoral implant and method and apparatus for implementation thereof
US61937582 Oct 199827 Feb 2001Acumed, Inc.Shoulder prosthesis
US633289612 Nov 199825 Dec 2001Ortho Development CorporationOrthopaedic implant with proximal collar
US649491318 Feb 200017 Dec 2002Acumed, Inc.Shoulder prosthesis
US6887278 *4 Nov 20023 May 2005Mayo Foundation For Medical Education And ResearchProsthetic implant having segmented flexible stem
US69136249 Oct 20015 Jul 2005Ortho Development CorporationOrthopaedic implant with proximal collar
US70706224 Feb 20034 Jul 2006Biomet, Inc.Prosthesis having a modular soft tissue fixation mechanism
US7112203 *22 May 200326 Sep 2006Centerpulse Orthopedics Ltd.Apparatus for the preparation of a femur bone for the implantation of a prosthesis
US71756643 Jul 200213 Feb 2007Biomet, Inc.Prosthetic having a modular soft tissue fixation mechanism
US729716316 Dec 200220 Nov 2007Acumed LlcShoulder prosthesis
US732301313 Sep 200229 Jan 2008Encore Medical Asset CorporationDifferential porosity prosthetic hip system
US753761813 Nov 200626 May 2009Howmedica Osteonics Corp.Modular humeral head
US755995014 Jan 200414 Jul 2009Waldemar Link Gmbh & Co. KgHip prosthesis including a shaft to be fixed in the medullary canal of the femur
US778537010 Apr 200931 Aug 2010Howmedica Osteonics Corp.Modular humeral head
US778537110 Apr 200931 Aug 2010Howmedica Osteonics Corp.Modular humeral head
US791889219 Nov 20075 Apr 2011Acumed LlcShoulder prosthesis
US80295737 Dec 20064 Oct 2011Ihip Surgical, LlcMethod and apparatus for total hip replacement
US806677512 Jun 200929 Nov 2011Branovacki GeorgeJoint implant
US811000511 Feb 20117 Feb 2012Biomet Manufacturing Corp.Modular prosthesis and use thereof for replacing a radial head
US811416329 Nov 200414 Feb 2012Biomet Manufacturing Corp.Method and apparatus for adjusting height and angle for a radial head
US8177849 *13 Nov 200915 May 2012Zimmer, Inc.Methods and apparatuses for attaching tissue to orthopaedic implants
US821118316 Mar 20113 Jul 2012Ihip Surgical, LlcMethods and systems for total hip replacement
US836678130 Jun 20105 Feb 2013Biomet Manufacturing Corp.Modular prosthesis and use thereof for replacing a radial head
US842561513 Oct 200923 Apr 2013Biomet Manufacturing Corp.Method and apparatus for adjusting height and angle for a radial head
US853538213 Dec 201117 Sep 2013Biomet Manufacturing, LlcModular radial head prostheses
US857998522 Dec 201112 Nov 2013Ihip Surgical, LlcMethod and apparatus for hip replacement
US8715356 *13 Apr 20116 May 2014Biomet Manufacturing, LlcProsthetic having a modular soft tissue fixation mechanism
US879538114 May 20125 Aug 2014Ihip Surgical, LlcMethods and systems for hip replacement
US89205094 Jun 201030 Dec 2014Biomet Manufacturing, LlcModular radial head prosthesis
US8974540 *12 Mar 201310 Mar 2015Ihip Surgical, LlcMethod and apparatus for attachment in a modular hip replacement or fracture fixation device
US8979940 *14 Dec 201217 Mar 2015Biomet Manufacturing, LlcModular attachment mechanism in prosthetic implants
US900530526 Mar 201214 Apr 2015Zimmer, Inc.Methods and apparatuses for attaching tissue to orthopaedic implants
US20030074079 *13 Sep 200217 Apr 2003Osteoimplant Technology, Inc.Differential porosity prosthetic hip system
US20040010319 *31 Mar 200315 Jan 2004Osteoimplant Technology Inc.Intrinsic stability in a total hip stem
US20040015239 *22 May 200322 Jan 2004Beguec Pierre LeApparatus for the preparation of a femur bone for for the implantation of a prosthesis
US20040088056 *4 Nov 20026 May 2004Lewallen David G.Prosthetic implant having segmented flexible stem
US20060041316 *14 Jan 200423 Feb 2006Waldemar Link Gmbh 7 Co. KgHip prosthesis comprising a shaft to be fixed in the medullary canal of the femur
US20100318191 *12 Jun 200916 Dec 2010Branovacki GeorgeJoint implant
US20120035733 *9 Feb 2012Biomet Manufacturing Corp.Prosthetic having a modular soft tissue fixation mechanism
US20130204390 *12 Mar 20138 Aug 2013Ihip Surgical, LlcMethod and apparatus for attachment in a modular hip replacement or fracture fixation device
US20140039637 *11 Oct 20136 Feb 2014Zimmer, Inc.Sleeve for modular revision hip stem
US20140296986 *5 May 20142 Oct 2014Biomet Manufacturing LlcProsthetic Having A Modular Soft Tissue Fixation Mechanism
USRE32471 *23 Jan 198511 Aug 1987Waldemar Link Gmbh & Co.Hip joint prosthesis with a shaft to be fitted into the medullary canal of the femur
DE2462313A1 *11 Mar 197416 Dec 1976Oscobal AgHueftgelenkkopf-prothese
DE2607315A1 *23 Feb 19762 Sep 1976United States Surgical CorpSchaft fuer gelenkprothese
DE3216539A1 *3 May 19823 Nov 1983Link Waldemar Gmbh CoKnochenenimplantat, insbesondere femorale hueftgelenkprothese
EP0093378A1 *26 Apr 19839 Nov 1983Waldemar Link (GmbH & Co.)Femur hip joint prosthesis
EP0098224A1 *28 Jun 198311 Jan 1984Gérald LordBone prosthesis and its manufacture
EP0099403A1 *21 Jan 19831 Feb 1984JOINT MEDICAL PRODUCTS CORPORATION (a Delaware corporation)Prosthesis fixation to bone
EP0112423A1 *17 Dec 19824 Jul 1984Francis Henri BréardJoint prosthesis, especially femoral prosthesis with self-blocking, wedge-shaped intramedullary stem
EP0135755A1 *8 Aug 19843 Apr 1985Protek AGStem for a hip joint prosthesis
EP0159462A1 *12 Jan 198530 Oct 1985Orthoplant Endoprothetik GmbHFemoral part of a total endoprosthesis for a hip joint
EP0159510A2 *9 Mar 198530 Oct 1985HOWMEDICA INTERNATIONAL, INC. Zweigniederlassung KielHip joint endoprosthesis
EP0163013A1 *4 Mar 19854 Dec 1985Emil Schenker AGStem for a hip prosthesis
EP0181586A2 *26 Apr 198321 May 1986Waldemar Link (GmbH & Co.)Femural hip joint prosthesis
EP0198163A2 *5 Feb 198622 Oct 1986Gebrüder Sulzer AktiengesellschaftConnection of two parts of an implant
EP0238860A2 *12 Jan 198530 Sep 1987orthoplant Endoprothetik GmbHFemoral part of a endoprosthesis for a hip joint
EP0378044A1 *2 Nov 198918 Jul 1990Gebrüder Sulzer AktiengesellschaftFlat stem for a femoral head prosthesis
WO1983000616A1 *13 Aug 19823 Mar 1983Tatum, O., Hilt, Jr.Dental implant
WO1994020046A1 *14 Mar 199415 Sep 1994Brigham & Womens HospitalBone prosthesis and method of implanting the same