Patent US4677973A successfully refreshed from Google Patents.
US4677973A
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Proximal, tibial osteotomy for leveling a tibial plateau
Assignee: D Barclay Slocum Trust Agreement
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Filing: 1985-05-28
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Granted: 1987-07-07
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Expires: 2005-05-28
Abstract
Abstract A method of performing a proximal tibial osteotomy, portion of the metaphysis of the tibia is cut free from a remaining (lower) portion of the tibia with a cylindrical cut which has a curvature axis that is perpendicular to the sagittal plane. The thus-cut proximal portion is rotated relative to the lower portion of the tibia to establish a new desired angular relation therebetween, and the two portions are then fixed relative to one another in any suitable manner, as by pinning.
Inventors
- 👤 Barclay Slocum
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 13:36
CPC Classifications
A; A61; A61B; A61B17/00; A61B17/14; A61B17/15; A61B17/151; A61B17/16; A61B17/1637
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
119 words
A method of performing a proximal tibial osteotomy comprising producing a curvilinear cut adjacent the proximal metaphysis of the tibia, the lower part of which cut is concave as viewed from such metaphysis, such cut being made generally perpendicular to the sagittal plane, to free a caudal, tibial portion within the metaphyseal region of the tibia for movement relative to the remaining portion of the tibia that includes the diaphysis of the tibia and the tibial crest, rotating the two thus-cut-separated tibial portions to produce a new angular relationship therebetween in such plane without effecting translation of the thus-cut-separated tibial portions relative to one another, and fixing the two thus-rotated portions to anchor them in such new angular relationship.
Claim 2
Independent Claim
119 words
A method of performing a proximal tibial osteotomy comprising producing a curvilinear cut adjacent the proximal metaphysis of the tibia, the lower part of which cut is concave as viewed from such metaphysis, such cut being made generally perpendicular to the sagittal plane, to free a caudal, tibial portion within the metaphyseal region of the tibia for movement relative to the remaining portion of the tibia that includes the diaphysis of the tibia and the tibial crest, rotating the two thus-cut-separated tibial portions to produce a new angular relationship therebetween in such plane without effecting translation of the thus-cut-separated tibial portions relative to one another, and fixing the two thus-rotated portions to anchor them in such new angular relationship.
Claim 3
Dependent Claim
20 words
The method of claim 1, wherein production of a curvilinear cut is accomplished, more specifically, by generating a cylindrical cut.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1990-07-06 | 1991-01-05 | 1991-07-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-07-06 | 1995-01-05 | 1995-07-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-07-06 | 1999-01-05 | 1999-07-07 | $7700.00 | Window Closed / Lapsed |