US3696446A - Total knee prosthesis - Google Patents

Total knee prosthesis Download PDF

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Publication number
US3696446A
US3696446A US110950A US3696446DA US3696446A US 3696446 A US3696446 A US 3696446A US 110950 A US110950 A US 110950A US 3696446D A US3696446D A US 3696446DA US 3696446 A US3696446 A US 3696446A
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United States
Prior art keywords
axis
knee
tibia
prosthesis
spherical element
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Expired - Lifetime
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US110950A
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English (en)
Inventor
Gilles Bousquet
Andre Rambert
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ASS de l ECOLE CATHOLIQUE D AR
ASSOCIATION DE L'ECOLE CATHOLIQUE D'ARTS ET MATIERS DE LYON
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ASS de l ECOLE CATHOLIQUE D AR
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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
    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02—Prostheses implantable into the body
    • A61F2/30—Joints
    • A61F2/38—Joints for elbows or knees
    • A61F2/3836—Special connection between upper and lower leg, e.g. constrained
    • A61F2/3854—Special connection between upper and lower leg, e.g. constrained with ball and socket joint

Definitions

  • This invention is directed to a total prosthesis of the human knee.
  • the design of a prosthesis of the knee must take into account two essential factors, namely the knee flexion and the rotation of the tibia about its axis, as normally observed in the knee function. Now these two factors are closely connected. No knee flexion can take place without a tibial rotation. Admittedly, complete knee prostheses now proposed provide only the flexion stretching movements. Nevertheless, the importance of the tibia rotation should be regarded as an essential element for it permits of absorbing the greater portion of the stress exerted on the femoral and tibial anchoring rods of prostheses having only one type of movement.
  • the tibial rotation reduces considerably the possibility of loosening the femoral and tibial rods and also of causing ulcers in the femoral bone cortex. Moreover, it enables periarticular muscles to operate under conditions approximating normal conditions.
  • the complete knee prosthesis comprises two members pivotally interconnected and provided with opposed rods for fastening and sealing these members to the lower end of the thigh-bone and to the upper end of the tibia, respectively, and with bearing plates ensuring a proper distribution of stresses throughout the cross-sectional area of the thigh-bone and tibia, ischaracterized in that the articulation consists of a spherical or ball-joint element rigid with the upper member fastened to the thigh-bone and engaging a part-spherical concavity of a socket rigid with the lower member fastened to the tibia, means, being provided for producing the systematic inward rotation of the tibia about its axis during the antero-posterior knee flexion, other means being provided for limiting to the desired angular values the free part-rotational movements, both inwards and outwards, of the tibia about its axis, complementary means being also provided for maintaining the tibia in
  • a guide plate secured to the front edge of the bearing plate of the upper member fastened to the thigh-bone is a guide plate formed with an external groove inclined by 10 to the rod rigid with the upper member, the function of said groove consisting in properly guiding the patella or kneecap.
  • the means provided for producing the systematic inward rotation of the tibia about its axis during the anteroposterior knee flexion comprise on the one hand a spindle extending diametrally through said spherical or ball-joint element rigid with the upper member the projecting, trunnion-forming portions of this spindle engaging bearing forming elongated apertures formed perpendicularly thereto in lateral upstanding flanges of the lower member which in the operative condition of the assembly are disposed on either side of said spherical element, and on the other hand a guide stud rigid with the part-spherical concavity of said socket and projecting radially into a groove having an at least partially helical configuration which is formed in the surface of said spherical element along an angle approximating 120 about the spindle extending through this spherical element, to permit the knee flexion through the normal amplitude
  • the reaction of said said spherical element rigid with the upper member
  • the groove formed in said spherical element rigid with the thighbone member comprises three successive sections, namely a first section extending along the first 30 with a gradient of the order of 6, an intermediate following or second section of about 30, having a gradient of the order of 4, and finally an end or third section covering the last 60 with a zero gradient.
  • the means for limiting the free inward and outward rotational movements of the tibia about its axis to the desired values comprise a boss formed on the bearing plate of the upper member fastened to the thighbone, on either side of the portion interconnecting said plate and said spherical element, said boss being normally engaged between the edges of the ends of said upstanding flanges supporting the trunnion-forming portions of the diametral spindle which project from said spherical element, the clearance provided between each end of said boss and the relevant flange determining the value of the permissible free rotation.
  • the spindle extend ing diametrally through the spherical element is inclined by with respect to the axis of the rod rigid with the upper member of the prosthesis, so that in the hereto, illustrating by way of example a typical form stretched knee position the tibia axis is inclined by about 10 outwards in relation to the imaginary downward extension of the thigh-bone axis.
  • FIG. 1 is a diagram showing the kinematics of the prosthesis as seen in side elevational view
  • FIG. 2 is a front view corresponding to FIG. 1 but showing the tibia and thigh-bone angular relationship, in the case of the left-hand leg or knee
  • FIGS. 3 and 4 are perspective views of the prosthesis members secured to the thigh-bone and tibia, respectively
  • FIG. 5 is an axial section showing the complete prosthesis in the stretched-knee position
  • FIG. 6 is a cross section taken along the line 6-6 of FIG. 5.
  • the thighbone is illustrated in the form of a vertical straight line 2 and the tibia by another straight line 3 adapted to pivot angularly between two limit positions 3a and 3b, illustrated in dash and dot lines, with respect to the thigh-bone 2, these positions forming an angle of 120 to l30 with each other.
  • the tibia 3a in the stretched knee position, is slightly inclined forwards by about 3 with respect to the imaginary downward extension of the thigh-bone 2.
  • the systematic rotation of tibia 3 is that accomplished internally about the axis OZ during the first 60 of the knee flexion, i.e. during the rotation of the tibia 3 about the axis OX from position 3a to position 3c.
  • the free rotation of the tibia is a rotation permitted about the axis 02 within the limits set forth in the foregoing.
  • the prosthesis should be so designed as to prevent any rotational movement of the tibia about the axis OY perpendicularto axes OX and OZ.
  • FIG. 2 shows how in the stretched position the tibia 3a must form an angle of about with the downward extension 2a of thigh-bone 2.
  • FIG. 3 shows in perspective the upper member 4 of the prosthesis, i.e. the member to be fastened to the thigh-bone.
  • This member 4 comprises a bearing plate 5 adapted properly to distribute the stress throughout the thigh-bone cross-sectional area, a rod 6 adapted to be sealed in the medullary canal of the thigh-bone, a guide plate 7 secured to the front edge 5d of plate 5, and having formed in its front surface a groove 7a adapted to guide the patella or the kneecap.
  • the guide plate 7 may be replaced by another, thicker guide plate adapted to compensate the loss of thickness due to the absence of patella while reducing the loss of strength of the quadriceps as a consequence of this patellectomy.
  • the plate 5 On its lower face the plate 5 carries a boss 8 serving a purpose to be explained presently this boss has secured thereto a spherical element 9 somewhat offset to the rear with respect to the rod 6 and receiving diametrally therethrough a spindle 11 forming an angle of about with the axis of rod 6.
  • a groove 12 surrounding the spindle concentrically through an angle of about to is formed; this groove 12 comprises three successive sections 12a, 12b and 120 having different gradients, namely a lower section 12a extending along 30 circa and having a gradient of about 6, an intermediate section 12b extending along the next 30 with a gradient of the order of 4, and finally an upper section 12c covering the last 60 or 70 but without any gradient.
  • FIG. 4 illustrated in perspective the lower member 13 of the prosthesis, i.e. the member to be secured to the upper portion of the patients tibia.
  • This member 13 comprises a bearing plate 14 also adapted to ensure a proper distribution of stress throughout a cross-sectional surface of the tibia and formed with a hole 14a for receiving a fastening rod 15 to be sealed in the patients tibia.
  • the rear portion of the upper surface of plate 14 has formed therein a part-spherical bearing concavity 16 adapted to be engaged by the spherical element 9 of upper member 4 a stud 17 projecting from this partspherical concavity 16 is adapted to engage the groove 12 of spherical element 9.
  • a flange 18 On either side of this partspherical concavity 16 is a flange 18 the two flanges 18 are each formed with an elongated aperture 19 adapted to act as a bearing to one of the trunniomforming projecting ends of the spindle 11 extending diametrally through spherical element 9.
  • the main members 4 and 13 of the prosthesis are assembled to each other before the surgical operation.
  • FIGS. 5 illustrates the prosthesis after this operation, in the stretched knee position.
  • the axes of thigh-bone 2 and tibia 3 which may be considered as merging into the axes of rods 6 and 15, are not exactly co-extensive in that the axis of rod 15 is offset forwards by about 3 with respect to the downward extension of the axis of rod 6.
  • This angular difference with respect to a simply aligned relative position between the axes 2 and 3 improves the knee stability in the stretched position.
  • the lower edge of guide plate 7 acts as an abutment due to its engagement by the front edge of lateral flanges 18.
  • the tibia can pivot in either direction about its axis until the spindle l1 abutes against the ends of said apertures 19. It is thus clear that with this arrangement the tibia 3 can rotate about its axis since, furthermore, the stud 17 is secured radially with respect to the mutually-engaged part-spherical bearing concavity 16 and spherical element 9. Besides, this arrangement is provided with a view to permit the systematic and free rotational movements of the tibia about its axis.
  • the boss 8 carried by bearing plate 5 of upper member 4 is partially engaged between the front edges of flanges 18 of the lower member 13, and a predetermined functional clearance is provided between each end of boss 8 and the corresponding flange 18.
  • the purpose of this clearance is to limit the rotation of flanges 18 about the center of spherical element 9. Under these conditions it is possible, by giving an accurate value to each one of these clearances (which may vary with the knee flexion) to limit within the desired values the free, inward and outward rotational movements of the tibia.
  • the free inward rotation must be zero during the first 30 of the flexion movement. Therefore, as long as the flexion is less than 30, the operative clearance between the outer flange 18 and boss 8 must be strictly limited to that necessary for the systematic rotation. Under these conditions and considering this systematic rotation no play should exist or develop between the boss 8 and the outer flange 18, until the tibia has cleared the 30 limit. Beyond this 30 flexion some clearance must be available to permit the inward rotation to an extent of the order of 5. Besides, as the free outward rotation is of the order of 8, up to 30 of tibia flexion, the operative clearance provided between the boss 8 and the inner flange 18 must be such as to permit this 8 rotation with due consideration for the systematic rotation. Beyond 30, this clearance must increase to permit a outward rotation, still considering the systematic inward rotation;
  • Complete prosthesis for the knee comprising two respectively upper and lower members pivotally interconnected and each provided with a rod permitting the sealing of these members to the lower end of the thigh-bone and to the upper end of the tibia, respectively, each member aforesaid having a longitudinal axis and being provided with a transverse bearing plate adapted properly to distribute the stress throughout the cross-sectional area of said thigh-bone and tibia, wherein the pivotal interconnection comprises a spherical element rigid with the upper member and engaging a part-spherical bearing concavity formed in said lower member, means for producing the systematic inward rotation of the lower member about its said axis during the antero-posterior flexion of the knee, other means for limiting to the desired values the free inward and outward movements of rotation of said lower member about its said axis, and third means adapted to impart the normal angular position between said lower and upper members as compared to the tibia in relation to the thigh-bone
  • the means for producing the systematic inward rotation of the lower member about its axis, during the anteroposterior flexion of the knee comprise a spindle extending diametrally through said spherical element rigid with the upper member, the projecting portions of said spindle acting as trunnions and engaging bearingforming elongated apertures formed perpendicularly to said axis in upstanding lateral flanges rigid with said lower member, said flanges being disposed on opposite sides of said part-spherical concavity, and a guide stud carried by said concavity projecting radially into a groove formed with an at least partially helical configuration in said spherical element through substantially about the spindle extending through said spherical element, to permit the knee flexion with the normal amplitude.
  • said groove formed in the spherical element comprises three successive sections, namely a first section extending along the first 30 and having a gradient of the order of 6, a second or intermediate section covering the next 30 and having a gradient of the order of 4, and finally a third section extending along the last 60 with a zero gradient.
  • said means for limiting to the desired values the free inward and outward rotational movements of said lower member about its axis consist of a boss formed on said bearing plate having ends extending to opposite sides of said spherical element, said boss being normally engaged between the front edges of the ends of the upstanding flanges supporting the spindle extending diametrally through said spherical element, the clearance provided between each end of said boss and the corresponding lateral flange determining the value of the permissible free rotation.

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  • Health & Medical Sciences (AREA)
  • Orthopedic Medicine & Surgery (AREA)
  • Physical Education & Sports Medicine (AREA)
  • Cardiology (AREA)
  • Oral & Maxillofacial Surgery (AREA)
  • Transplantation (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Vascular Medicine (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Prostheses (AREA)
US110950A 1970-01-30 1971-01-29 Total knee prosthesis Expired - Lifetime US3696446A (en)

Applications Claiming Priority (1)

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FR7003234A FR2076838A5 (da) 1970-01-30 1970-01-30

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US (1) US3696446A (da)
CA (1) CA934901A (da)
CH (1) CH526952A (da)
DE (1) DE2103886A1 (da)
FR (1) FR2076838A5 (da)
GB (1) GB1321353A (da)

Cited By (45)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3772709A (en) * 1972-06-15 1973-11-20 A Swanson Prosthetic joint
US3798679A (en) * 1971-07-09 1974-03-26 Ewald Frederick Joint prostheses
US3806961A (en) * 1972-02-16 1974-04-30 Sulzer Ag Phosthetic patella implant
US3824630A (en) * 1972-06-23 1974-07-23 Zimmer Mfg Co Prosthetic joint for total knee replacement
US3837009A (en) * 1972-12-07 1974-09-24 New York Soc Relief Of Rupture Knee prosthesis
US3869729A (en) * 1972-01-05 1975-03-11 Nat Res Dev Bone joint prosthesis
US3886601A (en) * 1972-03-04 1975-06-03 Eric George Findlay Prosthetic knee joint assembly
US3909854A (en) * 1973-05-03 1975-10-07 Ysidore M Martinez Knee implant prosthesis
US3939496A (en) * 1973-10-15 1976-02-24 National Research Development Corporation Endoprosthetic bone joint
US3945053A (en) * 1973-03-05 1976-03-23 Purdue Research Foundation Rolling contact prosthetic knee joint
DE2452412A1 (de) * 1974-11-05 1976-05-06 Karl Dr Med Tillmann Gleit-reibe-totalendoprothese fuer kniegelenke
US4016606A (en) * 1975-07-14 1977-04-12 Research Corporation Knee joint prosthesis
US4057858A (en) * 1975-02-17 1977-11-15 Arthur Jacob Helfet Elbow prosthesis
USRE29757E (en) * 1971-04-21 1978-09-12 Replacements for bicondylar joints in human limbs
US4136405A (en) * 1977-04-29 1979-01-30 Zimmer U.S.A. Rotational offset knee prosthesis
US4187559A (en) * 1975-04-04 1980-02-12 Sybron Corporation Body joint endoprosthesis
US4199824A (en) * 1977-10-12 1980-04-29 Sulzer Brothers Limited Intramedullary stem
US4219893A (en) * 1977-09-01 1980-09-02 United States Surgical Corporation Prosthetic knee joint
DE3013155A1 (de) * 1979-04-05 1980-10-23 Minnesota Mining & Mfg Tibia-prothese
US4301553A (en) * 1975-08-15 1981-11-24 United States Surgical Corporation Prosthetic knee joint
US4353135A (en) * 1980-05-09 1982-10-12 Minnesota Mining And Manufacturing Company Patellar flange and femoral knee-joint prosthesis
US4358859A (en) * 1979-10-04 1982-11-16 Schurman David J Articulated prosthetic knee and method for implanting same
US4462120A (en) * 1981-07-06 1984-07-31 Andre Rambert Total knee prosthesis
US4791919A (en) * 1985-01-25 1988-12-20 Chas F Thackray Limited Surgical instruments
US4834758A (en) * 1988-05-26 1989-05-30 New York Society For The Relief Of The Ruptured And Crippled, Maintaining The Hospital For Special Surgery Bone prosthesis for the leg and thigh
US5413607A (en) * 1990-11-29 1995-05-09 Gmt Gesellschaft Fur Medizinische Technik Mbh Knee joint prosthesis
US6485519B2 (en) 2001-01-29 2002-11-26 Bristol-Myers Squibb Company Constrained prosthetic knee with rotating bearing
US20030163201A1 (en) * 2002-02-26 2003-08-28 Mcminn Derek James Wallace Knee prosthesis
US6719800B2 (en) 2001-01-29 2004-04-13 Zimmer Technology, Inc. Constrained prosthetic knee with rotating bearing
US6773461B2 (en) 2001-01-29 2004-08-10 Zimmer Technology, Inc. Constrained prosthetic knee with rotating bearing
US20040186584A1 (en) * 2001-04-25 2004-09-23 Arnold Keller Knee prosthesis with a flexion hinge
JP2006500166A (ja) * 2002-09-26 2006-01-05 スパインコア，インコーポレイテッド 捕捉されたボール・ソケット形ジョイントを有する人工椎間板
US20060161259A1 (en) * 2005-01-18 2006-07-20 Cheng-Kung Cheng Knee joint prosthesis
US20060189998A1 (en) * 2005-02-08 2006-08-24 Rasmussen G L Guide assembly for guiding cuts to a femur and tibia during a knee arthroplasty
US20090043309A1 (en) * 2005-02-08 2009-02-12 Rasmussen G Lynn Systems and methods for guiding cuts to a femur and tibia during a knee arthroplasty
US20090043310A1 (en) * 2005-02-08 2009-02-12 Rasmussen G Lynn Arthroplasty systems and methods for optimally aligning and tensioning a knee prosthesis
CN100469337C (zh) * 2005-01-11 2009-03-18 郑诚功 改良构造的人工膝关节
US20090143866A1 (en) * 2007-11-30 2009-06-04 Howmedica Osteonics Corp. Knee prosthesis with four degrees of freedom
US20130103158A1 (en) * 2011-09-21 2013-04-25 Linares Medical Devices, Llc Implantable elbow joint assembly with spherical inter-support
EP3049027A4 (en) * 2013-09-27 2017-03-15 Joint Innovation Technology, LLC Reverse knee prosthesis
US20180125667A1 (en) * 2016-11-07 2018-05-10 John Bodeker Savage Prosthetic apparatus and systems for total knee arthroplasty
WO2019145965A1 (en) * 2018-01-25 2019-08-01 Nonferrous Materials Technology Development Centre Distal femur total knee prosthesis with self limiting small angle tibial-femoral rotation
US20200276024A1 (en) * 2019-02-28 2020-09-03 Oxford Performance Materials, Inc. Articulating Knee Spacer and Method of Manufacture
US11229521B2 (en) 2010-07-30 2022-01-25 Howmedica Osteonics Corp. Stabilized knee prosthesis
US11992230B2 (en) 2016-11-30 2024-05-28 G. Lynn Rasmussen Systems and methods for providing a tibial baseplate

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH555671A (de) * 1972-09-01 1974-11-15 Sulzer Ag Endo-prothese fuer ein kniegelenk.
GB1582974A (en) * 1975-11-06 1981-01-21 Schuett & Grundei Sanitaet Finger joint endoprostheses
DE2549819C3 (de) * 1975-11-06 1982-04-29 Sanitätshaus Schütt & Grundei, Werkstätten für Orthopädie-Technik, 2400 Lübeck Endoprothese für ein Kniegelenk
US4213209A (en) * 1978-05-22 1980-07-22 New York Society For The Relief Of The Ruptured And Crippled Knee joint prosthesis
EP0049298B1 (en) * 1979-02-22 1985-02-13 John Milton Agee Joint prosthesis
FR2628316A1 (fr) * 1988-03-08 1989-09-15 Lebeguec Pierre Prothese totale du genou
GB2237200B (en) * 1989-09-27 1994-02-23 Univ London Knee prosthesis
FR2702368B1 (fr) * 1993-03-10 1995-06-09 Medinov Sa Implant tibial pour prothèse du genou.

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1122634A (fr) * 1955-02-25 1956-09-11 Perfectionnements aux prothèses articulaires
US3506982A (en) * 1965-06-21 1970-04-21 Cleveland Clinic Endoprosthetic joints

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1122634A (fr) * 1955-02-25 1956-09-11 Perfectionnements aux prothèses articulaires
US3506982A (en) * 1965-06-21 1970-04-21 Cleveland Clinic Endoprosthetic joints

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
Use of a Hinged Vitallium Prosthesis for Arthroplasty of the Knee, by H. H. Young; Journal of Bone and Joint Surgery, Vol. 45A, No. 8, Dec. 1963, pages 1627 1642. *

Cited By (72)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USRE29757E (en) * 1971-04-21 1978-09-12 Replacements for bicondylar joints in human limbs
US3798679A (en) * 1971-07-09 1974-03-26 Ewald Frederick Joint prostheses
US3869729A (en) * 1972-01-05 1975-03-11 Nat Res Dev Bone joint prosthesis
US3806961A (en) * 1972-02-16 1974-04-30 Sulzer Ag Phosthetic patella implant
US3886601A (en) * 1972-03-04 1975-06-03 Eric George Findlay Prosthetic knee joint assembly
US3772709A (en) * 1972-06-15 1973-11-20 A Swanson Prosthetic joint
US3824630A (en) * 1972-06-23 1974-07-23 Zimmer Mfg Co Prosthetic joint for total knee replacement
US3837009A (en) * 1972-12-07 1974-09-24 New York Soc Relief Of Rupture Knee prosthesis
US3945053A (en) * 1973-03-05 1976-03-23 Purdue Research Foundation Rolling contact prosthetic knee joint
US3909854A (en) * 1973-05-03 1975-10-07 Ysidore M Martinez Knee implant prosthesis
US3939496A (en) * 1973-10-15 1976-02-24 National Research Development Corporation Endoprosthetic bone joint
DE2452412A1 (de) * 1974-11-05 1976-05-06 Karl Dr Med Tillmann Gleit-reibe-totalendoprothese fuer kniegelenke
US4057858A (en) * 1975-02-17 1977-11-15 Arthur Jacob Helfet Elbow prosthesis
US4187559A (en) * 1975-04-04 1980-02-12 Sybron Corporation Body joint endoprosthesis
US4016606A (en) * 1975-07-14 1977-04-12 Research Corporation Knee joint prosthesis
US4301553A (en) * 1975-08-15 1981-11-24 United States Surgical Corporation Prosthetic knee joint
US4136405A (en) * 1977-04-29 1979-01-30 Zimmer U.S.A. Rotational offset knee prosthesis
US4219893A (en) * 1977-09-01 1980-09-02 United States Surgical Corporation Prosthetic knee joint
US4199824A (en) * 1977-10-12 1980-04-29 Sulzer Brothers Limited Intramedullary stem
DE3013155A1 (de) * 1979-04-05 1980-10-23 Minnesota Mining & Mfg Tibia-prothese
US4358859A (en) * 1979-10-04 1982-11-16 Schurman David J Articulated prosthetic knee and method for implanting same
US4353135A (en) * 1980-05-09 1982-10-12 Minnesota Mining And Manufacturing Company Patellar flange and femoral knee-joint prosthesis
US4462120A (en) * 1981-07-06 1984-07-31 Andre Rambert Total knee prosthesis
US4791919A (en) * 1985-01-25 1988-12-20 Chas F Thackray Limited Surgical instruments
US4834758A (en) * 1988-05-26 1989-05-30 New York Society For The Relief Of The Ruptured And Crippled, Maintaining The Hospital For Special Surgery Bone prosthesis for the leg and thigh
US5413607A (en) * 1990-11-29 1995-05-09 Gmt Gesellschaft Fur Medizinische Technik Mbh Knee joint prosthesis
DE4038037B4 (de) * 1990-11-29 2010-06-02 Waldemar Link Gmbh & Co. Kg Kniegelenkendoprothese
US6719800B2 (en) 2001-01-29 2004-04-13 Zimmer Technology, Inc. Constrained prosthetic knee with rotating bearing
US8888857B2 (en) 2001-01-29 2014-11-18 Zimmer, Inc. Constrained prosthetic knee with rotating bearing
US6773461B2 (en) 2001-01-29 2004-08-10 Zimmer Technology, Inc. Constrained prosthetic knee with rotating bearing
USRE44476E1 (en) 2001-01-29 2013-09-03 Zimmer, Inc. Constrained prosthetic knee with rotating bearing
US20040249467A1 (en) * 2001-01-29 2004-12-09 Meyers John E. Constrained prosthetic knee with rotating bearing
US20100234962A1 (en) * 2001-01-29 2010-09-16 Zimmer Technology, Inc. Constrained prosthetic knee with rotating bearing
US8268006B2 (en) 2001-01-29 2012-09-18 Zimmer, Inc. Constrained prosthetic knee with rotating bearing
US20080097616A1 (en) * 2001-01-29 2008-04-24 Zimmer Technology, Inc. Constrained prosthetic knee with rotating bearing
US6485519B2 (en) 2001-01-29 2002-11-26 Bristol-Myers Squibb Company Constrained prosthetic knee with rotating bearing
US20040186584A1 (en) * 2001-04-25 2004-09-23 Arnold Keller Knee prosthesis with a flexion hinge
US6984249B2 (en) * 2001-04-25 2006-01-10 Walde Mar Link Gmbh & Co. Kg Knee prosthesis with a flexion hinge
US20030163201A1 (en) * 2002-02-26 2003-08-28 Mcminn Derek James Wallace Knee prosthesis
US6846329B2 (en) * 2002-02-26 2005-01-25 Mcminn Derek James Wallace Knee prosthesis
JP2006500166A (ja) * 2002-09-26 2006-01-05 スパインコア，インコーポレイテッド 捕捉されたボール・ソケット形ジョイントを有する人工椎間板
CN100469337C (zh) * 2005-01-11 2009-03-18 郑诚功 改良构造的人工膝关节
US20060161259A1 (en) * 2005-01-18 2006-07-20 Cheng-Kung Cheng Knee joint prosthesis
US8876831B2 (en) 2005-02-08 2014-11-04 G. Lynn Rasmussen Arthroplasty systems and methods for optimally aligning and tensioning a knee prosthesis
US20090043310A1 (en) * 2005-02-08 2009-02-12 Rasmussen G Lynn Arthroplasty systems and methods for optimally aligning and tensioning a knee prosthesis
US10624650B2 (en) 2005-02-08 2020-04-21 G. Lynn Rasmussen Systems and methods for guiding cuts to a femur and tibia during a knee arthroplasty
US7927336B2 (en) * 2005-02-08 2011-04-19 Rasmussen G Lynn Guide assembly for guiding cuts to a femur and tibia during a knee arthroplasty
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Also Published As

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GB1321353A (en) 1973-06-27
DE2103886A1 (de) 1971-08-12
FR2076838A5 (da) 1971-10-15
CA934901A (en) 1973-10-09
CH526952A (fr) 1972-08-31

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