GB2348373A - A knee prosthesis - Google Patents

A knee prosthesis Download PDF

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Publication number
GB2348373A
GB2348373A GB9905250A GB9905250A GB2348373A GB 2348373 A GB2348373 A GB 2348373A GB 9905250 A GB9905250 A GB 9905250A GB 9905250 A GB9905250 A GB 9905250A GB 2348373 A GB2348373 A GB 2348373A
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GB
United Kingdom
Prior art keywords
knee prosthesis
component
meniscal
superior
inferior
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
GB9905250A
Other versions
GB2348373B (en
GB9905250D0 (en
Inventor
Peter Jeremy Gibson
Ian Hamilton Paling
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.)
Corin Medical Ltd
Corin Ltd
Original Assignee
Corin Medical Ltd
Corin Ltd
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 Corin Medical Ltd, Corin Ltd filed Critical Corin Medical Ltd
Priority to GB9905250A priority Critical patent/GB2348373B/en
Publication of GB9905250D0 publication Critical patent/GB9905250D0/en
Publication of GB2348373A publication Critical patent/GB2348373A/en
Application granted granted Critical
Publication of GB2348373B publication Critical patent/GB2348373B/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02—Prostheses implantable into the body
    • A61F2/30—Joints
    • A61F2/38—Joints for elbows or knees
    • A61F2/3868—Joints for elbows or knees with sliding tibial bearing
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02—Prostheses implantable into the body
    • A61F2/30—Joints
    • A61F2002/30001—Additional features of subject-matter classified in A61F2/28, A61F2/30 and subgroups thereof
    • A61F2002/30316—The prosthesis having different structural features at different locations within the same prosthesis; Connections between prosthetic parts; Special structural features of bone or joint prostheses not otherwise provided for
    • A61F2002/30535—Special structural features of bone or joint prostheses not otherwise provided for
    • A61F2002/30563—Special structural features of bone or joint prostheses not otherwise provided for having elastic means or damping means, different from springs, e.g. including an elastomeric core or shock absorbers

Abstract

A knee prosthesis includes a compressible meniscal or tibial component. In one example, the meniscal component 9 comprises superior and inferior parts 10 and 11 of non-compressible wear resistant material, such as ultra high molecular weight polyethylene, and an intermediate compressible layer 12, typically formed of biocompatible silicone elastomer, between the superior and inferior parts.

Description

A KNEE PROSTHESIS This invention relates to a knee prosthesis.
It is now known that the natural meniscus in a healthy knee joint moves anteriorly-posteriorly, rotates, moves medially-laterally and expands and contracts during flexion and extension.
According to the present invention there is provided a knee prosthesis including a compressible meniscal or tibial component.
Preferred and/or optional features of the invention are set forth in claims 2 to 13, inclusive.
The invention will now be more particularly described, by way of example, with reference to the accompanying drawings, in which: Figure 1 is a side view of a meniscal component of a knee prosthesis according to one embodiment of the invention, Figure 2 is a bottom plan view of the meniscal component shown in Figure 1,'""'"'" Figure 3 is a section taken through the line III-III of Figure 2, Figure 4 is a sectional view of a tibial component of a knee prosthesis according to a second embodiment of the invention, Figure 5 is a top plan view of the tibial component shown in Figure 4, Figure 6 is a front view of the tibial component shown in Figures 4 and 5.
Referring firstly to Figures 1 to 3 of the drawings, the meniscal component 9 of a total knee prosthesis shown therein comprises a superior part 10, an inferior part 11 and a layer 12 of compressible material between the superior and inferior parts 10 and 11, respectively.
The inferior surface 13 of the inferior part 11 of the meniscal component is generally planar and the superior surface 14 of the superior part 10 of the meniscal component comprises two condylar surfaces, one on either side of the centre, each having a radius of curvature which is replicated in the articulating area of a femoral component (not shown), such that the femoral component and the meniscal component, when in contact throughout the range of motion, are fully congruent.
The meniscal component also has two recesses 15 and 16 which co-operate with bollards 17 and 18 upstanding from a plateau of a tibial component 19 to allow limited anterior-posterior, medial-lateral and rotational movement between the meniscal and tibial components. These recesses 15 and 16 extend through the inferior part 11 and through the compressible layer 12 into the superior part 10 of the meniscal component.
As shown, the superior and inferior parts 10 and 11 of the meniscal component are formed of ultra high molecular weight polyethylene and the compressible layer 12 is formed of a biocompatible compressible material, typically silicone rubber. The superior and inferior parts could, however, be made of any biocompatible metallic material suitable for the purpose and typically of high carbon cobalt chromium alloy. These parts could also be made of a ceramic material, such as alumina or zirconia. The advantage of making these parts of metal or ceramics material is that these materials are more wear resistant than polyethylene and the parts 10 and 11 can, therefore, be made thinner enabling the compressible layer 12 to be made thicker.
The superior and inferior parts 10 and 11 and the intermediate compressible layer 12 are secured together by a biocompatible adhesive or by mechanical means or a combination of both.
Referring now to Figures 4 to 6 of the accompanying drawings, the tibial component 19 shown therein comprises a plateau 20 and fixing devices such as pegs or stems 21. The plateau 20 comprises an inferior part 22, a superior part 23 and a layer 24 of compressible material between the inferior and superior parts 22 and 23, respectively. The superior surface 25 of the superior part 23 is flat for co-operation with an inferior surface of a meniscal component.
The bollards 17 and 18 are integral with the inferior part 22 and extend upwardly through openings in the compressible layer 24 and the superior part 23.
The inferior and superior parts 22 and 23, respectively, of the tibial component 19 and the pegs or stems 21 are made of a biocompatible metallic material suitable for the purpose and typically of a cobalt chromium alloy. They could also be made of a ceramic material, such as alumina or zirconia. The compressible layer 24 is formed of a biocompatible compressible material, typically silicone rubber.
The advantage of providing a knee prosthesis which allows for expansion and contraction during flexion and extension is that it would:1. Accommodate the differing extension/flexion gap during articulation by expanding and compressing from flexion to extension and vice versa, as does the meniscus in the natural knee.
2. As a result of an equalisation of tension through expansion and compression, there may be more even load transmission.
3. A meniscal component or a prosthetic knee, which will allow compression and expansion, will be more resistant to compressive load and shock.
4. The change in ligamentous tension will mimic the natural knee as the meniscus expands and compresses. As such, the knee will be in greater tension than with conventional knee prostheses throughout the range of motion which, in the case of a mobile meniscal knee, will provide a more stable construction and, therefore, resist meniscal dislocation or lift-off, which has been a problem reported in certain mobile meniscal knees.
5. The ability of the prosthetic knee to expand and compress will make implantation of the knee and ligament tension balancing more forgiving for the operating surgeon.
6. The expansion/compression process of the prosthetic knee will make it feel more natural to the patient.
The above embodiments are given by way of example only and various modifications will be apparent to persons skilled in the art without departing from the scope of the invention as defined by the appended claims. For example, the meniscal component could be fixed to the tibial component or could, indeed, be an integral part of the tibial component. Also, although the knee prosthesis as described above is a total knee prosthesis, it could be a uni-condylar knee prosthesis.

Claims (12)

  1. CLAIMS 1. A knee prosthesis including a compressible meniscal or tibial component.
  2. 2. A knee prosthesis as claimed in claim 1, wherein the meniscal component and tibial component are separate parts.
  3. 3. A knee prosthesis as claimed in claim 2, wherein the meniscal component is capable of anterior-posterior movement relative to the tibial component.
  4. 4. A knee prosthesis as claimed in claim 2 or claim 3, wherein the meniscal component is capable of rotational movement relative to the tibial component.
  5. 5. A knee prosthesis as claimed in any one of claims 2 to 4, wherein the meniscal component is capable of medial-lateral movement relative to the tibial component.
  6. 6. A knee prosthesis as claimed in claim 1 or claim 2, wherein the meniscal component is fixed relative to the tibial component.
  7. 7. A knee prosthesis as claimed in any one of the preceding claims, wherein the meniscal component comprises superior and inferior non-compressible layers of wear resistant material and an intermediate compressible layer between the superior and inferior layers.
  8. 8. A knee prosthesis as claimed in claim 7, wherein the superior and inferior layers are of metal or ceramic material.
  9. 9. A knee prosthesis as claimed in any one of claims 1 to 7, wherein the tibial component includes a plateau having superior and inferior non-compressible layers and an intermediate compressible layer between the superior and inferior layers.
  10. 10. A knee prosthesis as claimed in any one of claims 7 to 9, wherein the compressible layer is formed of a biocompatible material.
  11. 11. A knee prosthesis as claimed in claim 10, wherein the compressible layer is formed of silicone elastomer.
  12. 12. A knee prosthesis substantially as hereinbefore described with reference to Figures 1 to 3, or Figures 4 to 6, of the accompanying drawings.
    12. A knee prosthesis as claimed in any one of the preceding claims, in the form of a total knee prosthesis.
    13. A knee prosthesis as claimed in any one of the preceding claims, in the form of a uni-condylar knee prosthesis.
    14. A knee prosthesis substantially as hereinbefore described with reference to Figures 1 to 3, or Figures 4 to 6, of the accompanying drawings.
    Amendments to the claims have been filed as follows CLAIMS 1. A knee prosthesis including a compressible meniscal or tibial component, the meniscal and tibial components being separate parts and the meniscal component being capable of anterior-posterior movement and/or rotational movement and/or medial-lateral movement relative to the tibial component.
    2. A knee prosthesis as claimed in claim 1, wherein the meniscal component is capable of anterior-posterior movement relative to the tibial component.
    3. A knee prosthesis as claimed in claim 1 or claim 2, wherein the meniscal component is capable of rotational movement relative to the tibial component.
    4. A knee prosthesis as claimed in any one of claims 1 to 3, wherein the meniscal component is capable of medial-lateral movement relative to the tibial component.
    5. A knee prosthesis as claimed in any one of the preceding claims, wherein the meniscal component comprises superior and inferior non-compressible layers of wear resistant material and an intermediate compressible layer between the superior and inferior layers.
    6. A knee prosthesis as claimed in claim 5, wherein the superior and inferior layers are of metal or ceramic material.
    7. A knee prosthesis as claimed in any one of claims 1 to 4, wherein the tibial component includes a plateau having superior and inferior non-compressible layers and an intermediate compressible layer between the superior and inferior layers.
    8. A knee prosthesis as claimed in any one of claims 5 to 7, wherein the compressible layer is formed of a biocompatible material.
    9. A knee prosthesis as claimed in claim 8, wherein the compressible layer is formed of silicone elastomer.
    10. A knee prosthesis as claimed in any one of the preceding claims, in the form of a total knee prosthesis.
    11. A knee prosthesis as claimed in any one of the preceding claims, in the form of a uni-condylar knee prosthesis.
GB9905250A 1999-03-09 1999-03-09 A knee prosthesis Expired - Fee Related GB2348373B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB9905250A GB2348373B (en) 1999-03-09 1999-03-09 A knee prosthesis

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB9905250A GB2348373B (en) 1999-03-09 1999-03-09 A knee prosthesis

Publications (3)

Publication Number Publication Date
GB9905250D0 GB9905250D0 (en) 1999-04-28
GB2348373A true GB2348373A (en) 2000-10-04
GB2348373B GB2348373B (en) 2001-03-14

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Family Applications (1)

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GB (1) GB2348373B (en)

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2003049650A1 (en) 2001-12-11 2003-06-19 Dimitrios Sifneos Endoprosthesis of the knee and / or other joints
EP1477142A3 (en) * 2003-05-13 2005-01-05 Privelop AG Endoprosthesis of the knee
US7796791B2 (en) 2002-11-07 2010-09-14 Conformis, Inc. Methods for determining meniscal size and shape and for devising treatment
US7799077B2 (en) 2002-10-07 2010-09-21 Conformis, Inc. Minimally invasive joint implant with 3-dimensional geometry matching the articular surfaces
US8545569B2 (en) 2001-05-25 2013-10-01 Conformis, Inc. Patient selectable knee arthroplasty devices
US9603711B2 (en) 2001-05-25 2017-03-28 Conformis, Inc. Patient-adapted and improved articular implants, designs and related guide tools
US9642632B2 (en) 2009-02-24 2017-05-09 Microport Orthopedics Holdings Inc. Orthopedic surgical guide
US9649117B2 (en) 2009-02-24 2017-05-16 Microport Orthopedics Holdings, Inc. Orthopedic surgical guide
US9675471B2 (en) 2012-06-11 2017-06-13 Conformis, Inc. Devices, techniques and methods for assessing joint spacing, balancing soft tissues and obtaining desired kinematics for joint implant components
US9700420B2 (en) 2008-03-05 2017-07-11 Conformis, Inc. Implants for altering wear patterns of articular surfaces
US9700971B2 (en) 2001-05-25 2017-07-11 Conformis, Inc. Implant device and method for manufacture
US9775680B2 (en) 2001-05-25 2017-10-03 Conformis, Inc. Patient-adapted and improved articular implants, designs and related guide tools
US9883870B2 (en) 2009-02-24 2018-02-06 Microport Orthopedics Holdings Inc. Method for forming a patient specific surgical guide mount
US10085839B2 (en) 2004-01-05 2018-10-02 Conformis, Inc. Patient-specific and patient-engineered orthopedic implants

Families Citing this family (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8882847B2 (en) 2001-05-25 2014-11-11 Conformis, Inc. Patient selectable knee joint arthroplasty devices
US7618451B2 (en) 2001-05-25 2009-11-17 Conformis, Inc. Patient selectable joint arthroplasty devices and surgical tools facilitating increased accuracy, speed and simplicity in performing total and partial joint arthroplasty
US7534263B2 (en) 2001-05-25 2009-05-19 Conformis, Inc. Surgical tools facilitating increased accuracy, speed and simplicity in performing joint arthroplasty
US8234097B2 (en) 2001-05-25 2012-07-31 Conformis, Inc. Automated systems for manufacturing patient-specific orthopedic implants and instrumentation
US8083745B2 (en) 2001-05-25 2011-12-27 Conformis, Inc. Surgical tools for arthroplasty
US8771365B2 (en) 2009-02-25 2014-07-08 Conformis, Inc. Patient-adapted and improved orthopedic implants, designs, and related tools
US8556983B2 (en) 2001-05-25 2013-10-15 Conformis, Inc. Patient-adapted and improved orthopedic implants, designs and related tools
US7468075B2 (en) 2001-05-25 2008-12-23 Conformis, Inc. Methods and compositions for articular repair
US8735773B2 (en) 2007-02-14 2014-05-27 Conformis, Inc. Implant device and method for manufacture
US7239908B1 (en) 1998-09-14 2007-07-03 The Board Of Trustees Of The Leland Stanford Junior University Assessing the condition of a joint and devising treatment
US7184814B2 (en) 1998-09-14 2007-02-27 The Board Of Trustees Of The Leland Stanford Junior University Assessing the condition of a joint and assessing cartilage loss
AU772012B2 (en) 1998-09-14 2004-04-08 Board Of Trustees Of The Leland Stanford Junior University Assessing the condition of a joint and preventing damage
WO2002022014A1 (en) 2000-09-14 2002-03-21 The Board Of Trustees Of The Leland Stanford Junior University Assessing the condition of a joint and devising treatment
US8439926B2 (en) 2001-05-25 2013-05-14 Conformis, Inc. Patient selectable joint arthroplasty devices and surgical tools
US8951260B2 (en) 2001-05-25 2015-02-10 Conformis, Inc. Surgical cutting guide
CA2447694A1 (en) 2001-05-25 2002-12-05 Imaging Therapeutics, Inc. Methods and compositions for articular resurfacing
TWI584796B (en) 2006-02-06 2017-06-01 康福美斯公司 Patient selectable joint arthroplasty devices and surgical tools
US8623026B2 (en) 2006-02-06 2014-01-07 Conformis, Inc. Patient selectable joint arthroplasty devices and surgical tools incorporating anatomical relief
AU2009246474B2 (en) 2008-05-12 2015-04-16 Conformis, Inc. Devices and methods for treatment of facet and other joints
BRPI1014917A2 (en) 2009-04-16 2016-04-19 Conformis Inc "Patient specific joint arthroplasty devices for ligament repair"
WO2012112694A2 (en) 2011-02-15 2012-08-23 Conformis, Inc. Medeling, analyzing and using anatomical data for patient-adapted implants. designs, tools and surgical procedures

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EP0046926A2 (en) * 1980-09-03 1982-03-10 Waldemar Link (GmbH & Co.) Knee joint endoprosthesis
US5092894A (en) * 1990-02-13 1992-03-03 Kenny Charles H Stabilized meniscus prosthesis
WO1994002086A1 (en) * 1992-07-16 1994-02-03 Henri Simon Implant for partial or total replacement of preferably cartilagenous or osseous organs
US5405398A (en) * 1993-08-30 1995-04-11 Intermedics Orthopedics, Inc. Prosthetic knee with posterior stabilized femoral component
FR2710837A1 (en) * 1993-10-07 1995-04-14 Tornier Sa Tibial plateau of a knee prosthesis provided with shock-absorbing blocks
US5645604A (en) * 1995-04-20 1997-07-08 Sulzer Medizinaltechnik Ag Tibia platform for a knee joint prosthesis
US5704946A (en) * 1996-03-13 1998-01-06 United States Manufacturing Company Multi-purpose prosthetic knee component

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* Cited by examiner, † Cited by third party
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EP0046926A2 (en) * 1980-09-03 1982-03-10 Waldemar Link (GmbH & Co.) Knee joint endoprosthesis
US5092894A (en) * 1990-02-13 1992-03-03 Kenny Charles H Stabilized meniscus prosthesis
WO1994002086A1 (en) * 1992-07-16 1994-02-03 Henri Simon Implant for partial or total replacement of preferably cartilagenous or osseous organs
US5405398A (en) * 1993-08-30 1995-04-11 Intermedics Orthopedics, Inc. Prosthetic knee with posterior stabilized femoral component
FR2710837A1 (en) * 1993-10-07 1995-04-14 Tornier Sa Tibial plateau of a knee prosthesis provided with shock-absorbing blocks
US5645604A (en) * 1995-04-20 1997-07-08 Sulzer Medizinaltechnik Ag Tibia platform for a knee joint prosthesis
US5704946A (en) * 1996-03-13 1998-01-06 United States Manufacturing Company Multi-purpose prosthetic knee component

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Cited By (31)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9700971B2 (en) 2001-05-25 2017-07-11 Conformis, Inc. Implant device and method for manufacture
US8545569B2 (en) 2001-05-25 2013-10-01 Conformis, Inc. Patient selectable knee arthroplasty devices
US9603711B2 (en) 2001-05-25 2017-03-28 Conformis, Inc. Patient-adapted and improved articular implants, designs and related guide tools
US9877790B2 (en) 2001-05-25 2018-01-30 Conformis, Inc. Tibial implant and systems with variable slope
US9775680B2 (en) 2001-05-25 2017-10-03 Conformis, Inc. Patient-adapted and improved articular implants, designs and related guide tools
WO2003049650A1 (en) 2001-12-11 2003-06-19 Dimitrios Sifneos Endoprosthesis of the knee and / or other joints
US7799077B2 (en) 2002-10-07 2010-09-21 Conformis, Inc. Minimally invasive joint implant with 3-dimensional geometry matching the articular surfaces
US7796791B2 (en) 2002-11-07 2010-09-14 Conformis, Inc. Methods for determining meniscal size and shape and for devising treatment
US8932363B2 (en) 2002-11-07 2015-01-13 Conformis, Inc. Methods for determining meniscal size and shape and for devising treatment
EP1477142A3 (en) * 2003-05-13 2005-01-05 Privelop AG Endoprosthesis of the knee
US10085839B2 (en) 2004-01-05 2018-10-02 Conformis, Inc. Patient-specific and patient-engineered orthopedic implants
US9700420B2 (en) 2008-03-05 2017-07-11 Conformis, Inc. Implants for altering wear patterns of articular surfaces
US9642632B2 (en) 2009-02-24 2017-05-09 Microport Orthopedics Holdings Inc. Orthopedic surgical guide
US10646238B2 (en) 2009-02-24 2020-05-12 Microport Orthopedics Holdings, Inc. Systems and methods for installing an orthopedic implant
US9675365B2 (en) 2009-02-24 2017-06-13 Microport Orthopedics Holdings Inc. System and method for anterior approach for installing tibial stem
US9883870B2 (en) 2009-02-24 2018-02-06 Microport Orthopedics Holdings Inc. Method for forming a patient specific surgical guide mount
US9901353B2 (en) 2009-02-24 2018-02-27 Microport Holdings Inc. Patient specific surgical guide locator and mount
US9949747B2 (en) 2009-02-24 2018-04-24 Microport Orthopedics Holdings, Inc. Systems and methods for installing an orthopedic implant
US10039557B2 (en) 2009-02-24 2018-08-07 Micorport Orthopedics Holdings, Inc. Orthopedic surgical guide
US9649117B2 (en) 2009-02-24 2017-05-16 Microport Orthopedics Holdings, Inc. Orthopedic surgical guide
US10512476B2 (en) 2009-02-24 2019-12-24 Microport Orthopedics Holdings, Inc. Orthopedic surgical guide
US11911046B2 (en) 2009-02-24 2024-02-27 Microport Orthopedics Holdings, Inc. Patient specific surgical guide locator and mount
US10660654B2 (en) 2009-02-24 2020-05-26 Microport Orthopedics Holdings Inc. Method for forming a patient specific surgical guide mount
US10973536B2 (en) 2009-02-24 2021-04-13 Microport Orthopedics Holdings, Inc. Orthopedic surgical guide
US11154305B2 (en) 2009-02-24 2021-10-26 Microport Orthopedics Holdings Inc. Patient specific surgical guide locator and mount
US11389177B2 (en) 2009-02-24 2022-07-19 Microport Orthopedics Holdings Inc. Method for forming a patient specific surgical guide mount
US11464527B2 (en) 2009-02-24 2022-10-11 Microport Orthopedics Holdings Inc. Systems and methods for installing an orthopedic implant
US11534186B2 (en) 2009-02-24 2022-12-27 Microport Orthopedics Holdings Inc. Orthopedic surgical guide
US11779356B2 (en) 2009-02-24 2023-10-10 Microport Orthopedics Holdings, Inc. Orthopedic surgical guide
US11779347B2 (en) 2009-02-24 2023-10-10 Microport Orthopedics Holdings Inc. System for forming a patient specific surgical guide mount
US9675471B2 (en) 2012-06-11 2017-06-13 Conformis, Inc. Devices, techniques and methods for assessing joint spacing, balancing soft tissues and obtaining desired kinematics for joint implant components

Also Published As

Publication number Publication date
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GB9905250D0 (en) 1999-04-28

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Effective date: 20120309