US7935119B2
Active / In Force
US
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Method for performing an open wedge, high tibial osteotomy
Assignee: Arthrex Inc
•
Filing: 2006-12-22
•
Granted: 2011-05-03
•
Expires: 2026-12-22
Abstract
Abstract Method for performing an open wedge, high tibial osteotomy, utilizing an apparatus comprising a wedge-shaped implant for disposition in a wedge-shaped opening created in the tibia, wherein the wedge-shaped implant comprises at least one key for disposition in at least one corresponding keyhole formed in the tibia adjacent to the wedge-shaped opening created in the tibia, wherein each of the at least one keys comprises an interior bore for receiving a fixation screw, at least one fixation screw for disposition in the interior bore of the at least one key, and further wherein the apparatus is configured so that when the at least one fixation screw is received in the interior bore, the at least one fixation screw terminates within the bore.
Inventors
- 👤 Kelly G. Ammann
- 👤 Vincent P. Novak
- 👤 Robert E. Schneider
- 👤 Ralph E. Burns
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 19:30
CPC Classifications
A; A61; A61B; A61B17/00; A61B17/14; A61B17/15; A61B17/151; A61B17/152; A61B17/16; A61B17/1613; A61B17/1615; A61B17/1662; A61B17/1675; A61B17/17; A61B17/1732; A61B17/1739; A61B17/1764; A61B17/56; A61B17/58; A61B17/68; A61B17/80; A61B17/8095; A61B17/88; A61B17/02; A61B2017/1602; A61B90/00; A61B90/03; A61B2090/033; A61B2090/034; A61B90/06; A61B2090/067; A61F; A61F2/00; A61F2/02; A61F2/30; A61F2/30721; A61F2/30734; A61F2002/30736
Claims Analysis
Total Claims: 45
Claim 1
Independent Claim
187 words
A method for performing an open wedge, high tibial osteotomy, the method comprising: cutting the bone along a cutting plane, with the cut terminating at a boundary line, and forming at least one keyhole in the tibia adjacent to the cut; moving the bone on either side of the cut apart so as to form a wedge-like opening in the bone; positioning a wedge-shaped implant in the wedge-shaped opening created in the tibia, wherein the wedge-shaped implant comprises at least one key for disposition in at least one corresponding keyhole formed in the tibia adjacent to the wedge-shaped opening created in the tibia, wherein each of the at least one keys comprises an interior bore for receiving a fixation screw; and positioning at least one fixation screw in the interior bore of the at least one key; wherein the apparatus is configured so that when the at least one fixation screw is received in the interior bore, the at least one fixation screw terminates within the bore; and further wherein the at least one key is disposed in the at least one keyhole formed in the tibia.
Claim 2
Independent Claim
187 words
A method for performing an open wedge, high tibial osteotomy, the method comprising: cutting the bone along a cutting plane, with the cut terminating at a boundary line, and forming at least one keyhole in the tibia adjacent to the cut; moving the bone on either side of the cut apart so as to form a wedge-like opening in the bone; positioning a wedge-shaped implant in the wedge-shaped opening created in the tibia, wherein the wedge-shaped implant comprises at least one key for disposition in at least one corresponding keyhole formed in the tibia adjacent to the wedge-shaped opening created in the tibia, wherein each of the at least one keys comprises an interior bore for receiving a fixation screw; and positioning at least one fixation screw in the interior bore of the at least one key; wherein the apparatus is configured so that when the at least one fixation screw is received in the interior bore, the at least one fixation screw terminates within the bore; and further wherein the at least one key is disposed in the at least one keyhole formed in the tibia.
Claim 3
Dependent Claim
16 words
A method according to claim 1 wherein the wedge-shaped implant comprises at least two separate components.
Claim 4
Dependent Claim
14 words
A method according to claim 2 wherein the wedge-shaped implant comprises three separate components.
Claim 5
Dependent Claim
21 words
A method according to claim 3 wherein the wedge-shaped implant comprises: a base component; a posterior component; and an anterior component.
Claim 6
Dependent Claim
17 words
A method according to claim 4 wherein the at least one key is disposed on the base.
Claim 7
Dependent Claim
18 words
A method according to claim 2 wherein the wedge-shaped implant is assembled prior to positioning in the tibia.
Claim 8
Dependent Claim
17 words
A method according to claim 2 wherein the wedge-shaped implant is assembled after positioning in the tibia.
Claim 9
Dependent Claim
21 words
A method according to claim 1 wherein the interior bore is axially aligned with the longitudinal axis of its host key.
Claim 10
Dependent Claim
31 words
A method according to claim 1 wherein each of the at least one keys is slotted longitudinally so as to permit expansion when a fixation screw is received by the key.
Claim 11
Dependent Claim
27 words
A method according to claim 1 wherein each of the at least one keys includes external ribs to facilitate fixation of the key relative to the keyhole.
Claim 12
Dependent Claim
18 words
A method according to claim 10 wherein the external ribs extend longitudinally along the at least one key.
Claim 13
Dependent Claim
18 words
A method according to claim 10 wherein the external ribs extend circumferentially along the at least one key.
Claim 14
Dependent Claim
26 words
A method according to claim 1 wherein each of the at least one keys includes at least two interior bores for receiving a fixation screw therein.
Claim 15
Dependent Claim
43 words
A method according to claim 1 wherein the wedge-shaped implant comprises a shear rib, laterally offset from the at least one key, for disposition in a corresponding shear rib keyhole formed in the tibia adjacent to the wedge-shaped opening created in the tibia.
Claim 16
Independent Claim
180 words
A method for performing an open wedge, high tibial osteotomy, the method comprising: cutting the bone along a cutting plane, with the cut terminating at a boundary line, and forming at least one keyhole in the tibia adjacent to the cut; moving the bone on either side of the cut apart so as to form a wedge-like opening in the bone; and positioning a wedge-shaped implant in the wedge-shaped opening created in the tibia, wherein the wedge-shaped implant comprises: at least one key for disposition in at least one corresponding keyhole formed in the tibia adjacent to the wedge-shaped opening created in the tibia, wherein each of the at least one keys comprises an interior bore for receiving an interior fixation screw, and a counterbore communicating with the interior bore; at least one distal draw nut disposed in the counterbore, wherein the draw nut comprises an interior bore for receiving the distal end of a fixation screw; and positioning a fixation screw in the interior bore of the at least one key and the interior bore of the draw nut.
Claim 17
Independent Claim
180 words
A method for performing an open wedge, high tibial osteotomy, the method comprising: cutting the bone along a cutting plane, with the cut terminating at a boundary line, and forming at least one keyhole in the tibia adjacent to the cut; moving the bone on either side of the cut apart so as to form a wedge-like opening in the bone; and positioning a wedge-shaped implant in the wedge-shaped opening created in the tibia, wherein the wedge-shaped implant comprises: at least one key for disposition in at least one corresponding keyhole formed in the tibia adjacent to the wedge-shaped opening created in the tibia, wherein each of the at least one keys comprises an interior bore for receiving an interior fixation screw, and a counterbore communicating with the interior bore; at least one distal draw nut disposed in the counterbore, wherein the draw nut comprises an interior bore for receiving the distal end of a fixation screw; and positioning a fixation screw in the interior bore of the at least one key and the interior bore of the draw nut.
Claim 18
Dependent Claim
16 words
A method according to claim 15 wherein the wedge-shaped implant comprises at least two separate components.
Claim 19
Dependent Claim
14 words
A method according to claim 16 wherein the wedge-shaped implant comprises three separate components.
Claim 20
Dependent Claim
21 words
A method according to claim 17 wherein the wedge-shaped implant comprises: a base component; a posterior component; and an anterior component.
Claim 21
Dependent Claim
17 words
A method according to claim 18 wherein the at least one key is disposed on the base.
Claim 22
Dependent Claim
18 words
A method according to claim 16 wherein the wedge-shaped implant is assembled prior to positioning in the tibia.
Claim 23
Dependent Claim
17 words
A method according to claim 16 wherein the wedge-shaped implant is assembled after positioning in the tibia.
Claim 24
Dependent Claim
21 words
A method according to claim 15 wherein the interior bore is axially aligned with the longitudinal axis of its host key.
Claim 25
Dependent Claim
31 words
A method according to claim 15 wherein each of the at least one keys is slotted longitudinally so as to permit expansion when a fixation screw is received by the key.
Claim 26
Dependent Claim
30 words
A method according to claim 15 wherein each of the at least one keys includes external ribs to facilitate fixation of the at least one key relative to the keyhole.
Claim 27
Dependent Claim
18 words
A method according to claim 24 wherein the external ribs extend longitudinally along the at least one key.
Claim 28
Dependent Claim
18 words
A method according to claim 24 wherein the external ribs extend circumferentially along the at least one key.
Claim 29
Dependent Claim
26 words
A method according to claim 15 wherein each of the at least one keys includes at least two interior bores for receiving a fixation screw therein.
Claim 30
Dependent Claim
43 words
A method according to claim 15 wherein the wedge-shaped implant comprises a shear rib, laterally offset from the at least one key, for disposition in a corresponding shear rib keyhole formed in the tibia adjacent to the wedge-shaped opening created in the tibia.
Claim 31
Independent Claim
192 words
A method for performing an open wedge, high tibial osteotomy, the method comprising: cutting the bone along a cutting plane, with the cut terminating at a boundary line, and forming at least one keyhole in the tibia adjacent to the cut; moving the bone on either side of the cut apart so as to form a wedge-like opening in the bone; and positioning a wedge-shaped implant in the wedge-shaped opening created in the tibia, wherein the wedge-shaped implant comprises: at least one open key for disposition in the at least one corresponding keyhole formed in the tibia adjacent to the wedge-shaped opening created in the tibia, wherein each of the at least one open keys comprises opposed longitudinal edges, and further wherein each of the at least one keys comprises a threaded recess for receiving a fixation screw, and at least one fixation screw for disposition in the interior bore of the at least one key; positioning at least one fixation screw in the interior bore of the at least one key; and further wherein the at least one key is disposed in the at least one keyhole formed in the tibia.
Claim 32
Independent Claim
192 words
A method for performing an open wedge, high tibial osteotomy, the method comprising: cutting the bone along a cutting plane, with the cut terminating at a boundary line, and forming at least one keyhole in the tibia adjacent to the cut; moving the bone on either side of the cut apart so as to form a wedge-like opening in the bone; and positioning a wedge-shaped implant in the wedge-shaped opening created in the tibia, wherein the wedge-shaped implant comprises: at least one open key for disposition in the at least one corresponding keyhole formed in the tibia adjacent to the wedge-shaped opening created in the tibia, wherein each of the at least one open keys comprises opposed longitudinal edges, and further wherein each of the at least one keys comprises a threaded recess for receiving a fixation screw, and at least one fixation screw for disposition in the interior bore of the at least one key; positioning at least one fixation screw in the interior bore of the at least one key; and further wherein the at least one key is disposed in the at least one keyhole formed in the tibia.
Claim 33
Dependent Claim
16 words
A method according to claim 29 wherein the wedge-shaped implant comprises at least two separate components.
Claim 34
Dependent Claim
14 words
A method according to claim 30 wherein the wedge-shaped implant comprises three separate components.
Claim 35
Dependent Claim
21 words
A method according to claim 31 wherein the wedge-shaped implant comprises: a base component; a posterior component; and an anterior component.
Claim 36
Dependent Claim
18 words
A method according to claim 32 wherein the at least one open key is disposed on the base.
Claim 37
Dependent Claim
18 words
A method according to claim 30 wherein the wedge-shaped implant is assembled prior to positioning in the tibia.
Claim 38
Dependent Claim
17 words
A method according to claim 30 wherein the wedge-shaped implant is assembled after positioning in the tibia.
Claim 39
Dependent Claim
22 words
A method according to claim 29 wherein the threaded recess is axially aligned with the longitudinal axis of its host open key.
Claim 40
Dependent Claim
36 words
A method according to claim 29 wherein each of the at least one open keys is slotted longitudinally so as to permit expansion when a fixation screw is received by the at least one open key.
Claim 41
Dependent Claim
32 words
A method according to claim 29 wherein each of the at least one open keys includes external ribs to facilitate fixation of the at least one open key relative to the keyhole.
Claim 42
Dependent Claim
19 words
A method according to claim 38 wherein the external ribs extend longitudinally along the at least one open key.
Claim 43
Dependent Claim
19 words
A method according to claim 38 wherein the external ribs extend circumferentially along the at least one open key.
Claim 44
Dependent Claim
27 words
A method according to claim 29 wherein each of the at least one open keys includes at least two threaded recesses for receiving a fixation screw therein.
Claim 45
Dependent Claim
43 words
A method according to claim 29 wherein the wedge-shaped implant comprises a shear rib, laterally offset from the at least one key, for disposition in a corresponding shear rib keyhole formed in the tibia adjacent to the wedge-shaped opening created in the tibia.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2014-05-02 | 2014-11-01 | 2015-05-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2018-05-02 | 2018-11-01 | 2019-05-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2022-05-02 | 2022-11-01 | 2023-05-03 | $7700.00 | Window Closed / Lapsed |