Opening and closing wedge osteotomy guide and method
Inventors
Fallin, T. Wade • Triplett, Daniel J. • Hoy, Robert W.
Assignees
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Publication Number
US-11974760-B2
Publication Date
2024-05-07
Expiration Date
Abstract
Methods and devices for performing an osteotomy on a bone are presented. In one example of the invention, a method of performing an osteotomy on a bone includes removing a portion of bone from a first side of the bone to create a gap on the first side of the bone; making a cut on a second side of the bone, opposite the first side; and rotating the bone from a first position to a second position to close the gap on the first side of the bone and open the cut on the second side of the bone to create a gap on the second side of the bone.
Core Innovation
The invention relates to an opening and closing wedge osteotomy and an osteotomy guide for bone correction. The approach includes making a first cut from one side and a second cut from an opposite side, and rotating the bone from an initial position to a second position to close a gap at the first side while opening a gap at the opposite side. The resulting gap may be filled, and the bone may be fixed with plate and screws.
The osteotomy guide includes a body with a proximal end and a distal end, and first and second sides extending between the proximal end and the distal end. A first guide surface guides a cutter to make a first cut, and a second guide surface converges toward the first guide surface as it extends between the first side and the second side to guide a second cut.
A third guide surface extends from the second side toward the first side to guide a third cut, with the third guide surface being parallel to the first guide surface. The guide further includes at least one proximal fixation hole and at least one distal fixation hole aligned along an axis of the osteotomy guide, and a reference indicator or reference marks aligned to the guide angle with respect to the axis. The guide supports different correction angles and left/right use, including a left/right configuration based on a 180 degrees rotation.
Claims Coverage
The independent claim set defines two osteotomy guide configurations. Across the independent claims, the core inventive subject matter includes a guide body with multiple guide surfaces that direct a cutter to form first, second, and in one claim third cuts, aligned proximal and distal fixation holes along an osteotomy axis, and geometric angle and reference features including converging guide surfaces and a reference indicator oriented to define the angle with respect to the axis.
Osteotomy guide body with converging and parallel guide surfaces for multi-cut geometry
A body having a proximal end and a distal end, and first and second sides; a first guide surface operable to guide a cutter to make a first cut; a second guide surface that converges toward the first guide surface and is operable to guide a cutter to make a second cut; and a third guide surface extending from the second side toward the first side, operable to guide a cutter to make a third cut, wherein the third guide surface is parallel to the first guide surface.
Aligned proximal and distal fixation holes along an osteotomy axis
At least one proximal fixation hole proximal to the guide surfaces and aligned along an axis of the osteotomy guide; and at least one distal fixation hole distal to the guide surfaces, aligned with the at least one proximal fixation hole along the axis of the osteotomy guide, wherein the first and second sides are disposed on opposite sides of the axis.
Angle-defining reference indicator oriented with respect to the osteotomy axis
The first and second guide surfaces define an angle, and the osteotomy guide comprises a reference indicator that is oriented so as to define the angle with respect to the axis.
The independent claim coverage is centered on an osteotomy guide with defined guide-surface geometry, fixation-hole alignment along an osteotomy axis with sides on opposite sides of the axis, and angle-definition through an oriented reference indicator.
Stated Advantages
Documented Applications
No documented applications found
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