GB2370227A - Ligament tensioning device - Google Patents

Ligament tensioning device Download PDF

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Publication number
GB2370227A
GB2370227A GB0028328A GB0028328A GB2370227A GB 2370227 A GB2370227 A GB 2370227A GB 0028328 A GB0028328 A GB 0028328A GB 0028328 A GB0028328 A GB 0028328A GB 2370227 A GB2370227 A GB 2370227A
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GB
United Kingdom
Prior art keywords
strap
ligament
endobutton
tensioning device
teeth
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
GB0028328A
Other versions
GB0028328D0 (en
GB2370227B (en
Inventor
Ahmed Mohamed Hosny Khashaba
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.)
Individual
Original Assignee
Individual
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Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to GB0028328A priority Critical patent/GB2370227B/en
Publication of GB0028328D0 publication Critical patent/GB0028328D0/en
Publication of GB2370227A publication Critical patent/GB2370227A/en
Application granted granted Critical
Publication of GB2370227B publication Critical patent/GB2370227B/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
    • A61F2/08—Muscles; Tendons; Ligaments
    • 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
    • A61F2/08—Muscles; Tendons; Ligaments
    • A61F2/0811—Fixation devices for tendons or ligaments

Landscapes

  • Health & Medical Sciences (AREA)
  • Orthopedic Medicine & Surgery (AREA)
  • Rehabilitation Therapy (AREA)
  • Rheumatology (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)

Abstract

Ligament tensioning device comprises (i) an button, (ii) an adjustable length strap b having teeth and (iii) a locking head a which allows passage of the strap through it in one direction only. In use, a ligament graft is sutured to one end of strap b and the other end is passed through head a which is sutured to an endobutton. The ligament is tensioned by pulling on sutures attached to the strap b and rearward movement is prevented by the teeth on the strap.

Description

< \oS\=''-" < - a < -
The anterior cruciate ligament (ACL) is an important ligament in the centre of the knee that ZD provides the knee with stability. It can rupture after certain types of trauma and in some cases requires ACL reconstruction.
Currently we used substitute ligaments (grafts) such as a portion of the patella tendon or hamstrings to surgically replace the deficient ACL. Usually these grafts are free grafts ie detailed at both ends and then re attached at both ends by a fixation device-be it"interference screws" or"endobutton suspension".
In my operation I propose to leave one end of the graft attached (therefore preserving blood supply) and to TENSION the other end. This has not been described before. I also tend to tension the graft within a tight tunnel thereby preventing further unnecessary incision onto the knee.
My invention will incorporate parts of 2 preeixisting separate inventions ie my invention is a concept of a simulation.
1. I'll modify a cable tie (drawing 1) 2. I'll modify the use of the Endobutton (drawing 2, US Patent no's 5306301, 5645588, other patents pending) Drawing 3 will illustrate how I intend to use my invention as a rachet mechanism to tension the
ACL graft. Drawing 3 shows basically the end result.
0 0 In my operation the ACL graft will be left attached to the tibial tuberosity as shown in 3. I will detach the top end of the graft from the knee cap and then stitch that bit to the 3 drill holes on the cut tail of the cable tie as shown. I'll also loop some structure through the 2 drill holes at the other end of the cut tail of the cable tie. I will then thread that structure loop (d) through the head end of the cut cable tie ie"b"will pass through"a"hence creating a one way tensioning valve effect.
The head"a"also has 3 drill holes in a remnant of the tail left attached to the head. I will structure the nylon ribbon (c) to the head via the drill holes. The length of nylon ribbon is variable and has to be calculated intra operatively-Once the graft has been set up to the KT1 (ie combination of endobutton and cable tie) I will then pull up the endobutton via its leading structure up the 9mm
(average) bony tunnel in the femur (by recognised routine methods) until its abutts and seats onto 0 the femoral bone as shown in 3 and hence is fixed there. I will then pull on the graft as the tail of the cable tie loops over and through the cable head until the graft becomes taut, when adjusted at = 200 of knee flexion. The suture d is then pulled out of the knee. This invention is unique and has not been described before. It allows a) Tensioning at the ACL graft b) Does it closed (ie no need to make an extra incision over the lateral aspect of the femur where the extra incision over the lateral aspect of the femur where the endobutton is c) the cable tie has a very high pull out strength, = 25kg is more that the interference screws. The cable tie remains in the bony tunnel of the femur

Claims (1)

  1. CLAIMS As explained in the description, my claim is that the KT1 is a novel way of simultaneously fixing
    and tensioning the ACL graft in ACL reconstruction of the knee 2- 1-1 Amendments to the claims have been filed as follows Amended claims Claim 1. Ligament tensioning device comprising the combination of 1) an endobutton for abutment on the femoral bone, 2) a first strap having teeth which has a number of holes at each end of the strap for attachment to a ligament and sature and each end, and 3) a second strap having a locking head at one end of the strap and a number of holes at the other end for attachment to the endobutton, where the locking head allows the passage of the first strap through it in one direction only.
    Claim 2: Ligament tensioning device as claimed in claim 1 wherein the endobutton is attached to holes of the second strap via a nylon ribbon and the first strap is looped through the locking head to lock the teeth of the first strap in position thereby simultaneously fixed and tensioning a ligament attached to the first strap.
    Claim 3: Ligament tensioning device as claimed in claims 1 or 2 wherein the endobutton is made of metal.
    Claim 4 Ligament tensioning device as claimed in claim 1 substantially as hereinbefore described with reference to the drawings.
GB0028328A 2000-11-21 2000-11-21 Khashaba Tensioner 1 (KT1) Expired - Fee Related GB2370227B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB0028328A GB2370227B (en) 2000-11-21 2000-11-21 Khashaba Tensioner 1 (KT1)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB0028328A GB2370227B (en) 2000-11-21 2000-11-21 Khashaba Tensioner 1 (KT1)

Publications (3)

Publication Number Publication Date
GB0028328D0 GB0028328D0 (en) 2001-01-03
GB2370227A true GB2370227A (en) 2002-06-26
GB2370227B GB2370227B (en) 2002-11-06

Family

ID=9903552

Family Applications (1)

Application Number Title Priority Date Filing Date
GB0028328A Expired - Fee Related GB2370227B (en) 2000-11-21 2000-11-21 Khashaba Tensioner 1 (KT1)

Country Status (1)

Country Link
GB (1) GB2370227B (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2316378A1 (en) * 2009-11-02 2011-05-04 Karl Storz GmbH & Co. KG Method and device for the fixation of a tendon graft
US8721683B2 (en) 2011-09-29 2014-05-13 Smith & Nephew, Inc. Attachment device to attach tissue graft
US8834523B2 (en) 2011-09-29 2014-09-16 Smith & Nephew, Inc. Attachment device to attach tissue graft
US8986327B2 (en) 2012-10-18 2015-03-24 Smith & Nephew, Inc. Flexible anchor delivery system
US9078651B2 (en) 2011-01-28 2015-07-14 Smith & Nephew, Inc. Tissue repair
US9820731B2 (en) 2012-03-09 2017-11-21 Smith & Nephew, Inc. Suture-based knotless repair

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8926662B2 (en) 2012-02-01 2015-01-06 Smith & Nephew, Inc. Tissue graft anchoring

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0117981A2 (en) * 1983-01-28 1984-09-12 Eliahu Prof. Antebi Process for tying live tissue and an instrument for performing the tying operation
EP0413549A2 (en) * 1989-08-18 1991-02-20 Minnesota Mining And Manufacturing Company Tensioning means for prosthetic devices
US5645588A (en) * 1993-02-11 1997-07-08 Acufex Microsurgical, Inc. Graft attachment device
WO1998011839A1 (en) * 1996-09-20 1998-03-26 Medicinelodge, Inc. Adjustable length strap and footing for ligament mounting and method for its use

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0117981A2 (en) * 1983-01-28 1984-09-12 Eliahu Prof. Antebi Process for tying live tissue and an instrument for performing the tying operation
EP0413549A2 (en) * 1989-08-18 1991-02-20 Minnesota Mining And Manufacturing Company Tensioning means for prosthetic devices
US5645588A (en) * 1993-02-11 1997-07-08 Acufex Microsurgical, Inc. Graft attachment device
WO1998011839A1 (en) * 1996-09-20 1998-03-26 Medicinelodge, Inc. Adjustable length strap and footing for ligament mounting and method for its use

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8523943B2 (en) 2009-11-02 2013-09-03 Karl Storz Gmbh & Co. Kg Method and device for the fixation of a tendon graft
EP2316378A1 (en) * 2009-11-02 2011-05-04 Karl Storz GmbH & Co. KG Method and device for the fixation of a tendon graft
US9044314B2 (en) 2009-11-02 2015-06-02 Karl Storz Gmbh & Co. Kg Method and device for the fixation of a tendon graft
US9370352B2 (en) 2011-01-28 2016-06-21 Smith & Nephew, Inc. Tissue repair
US11857176B2 (en) 2011-01-28 2024-01-02 Smith & Nephew, Inc. Tissue repair
US10631844B2 (en) 2011-01-28 2020-04-28 Smith & Nephew, Inc. Tissue repair
US9078651B2 (en) 2011-01-28 2015-07-14 Smith & Nephew, Inc. Tissue repair
US8834523B2 (en) 2011-09-29 2014-09-16 Smith & Nephew, Inc. Attachment device to attach tissue graft
US9517125B2 (en) 2011-09-29 2016-12-13 Smith & Nephew, Inc. Attachment device to attach tissue graft
US8721683B2 (en) 2011-09-29 2014-05-13 Smith & Nephew, Inc. Attachment device to attach tissue graft
US9820731B2 (en) 2012-03-09 2017-11-21 Smith & Nephew, Inc. Suture-based knotless repair
US10010314B2 (en) 2012-10-18 2018-07-03 Smith & Nephew, Inc. Flexible anchor delivery system
US10010316B2 (en) 2012-10-18 2018-07-03 Smith & Nephew, Inc. Flexible anchor delivery system
US8986327B2 (en) 2012-10-18 2015-03-24 Smith & Nephew, Inc. Flexible anchor delivery system

Also Published As

Publication number Publication date
GB0028328D0 (en) 2001-01-03
GB2370227B (en) 2002-11-06

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PCNP Patent ceased through non-payment of renewal fee

Effective date: 20131121