摘要:
Apparatus for performing an open wedge, high tibial osteotomy, the apparatus comprising: cutting apparatus for forming an osteotomy cut in the tibia, the cutting apparatus comprising: targeting apparatus for identifying a cutting plane through the tibia and a boundary line for terminating a cut made along the cutting plane, wherein the boundary line is located within the tibia, parallel to the anterior-posterior slope of the tibia and parallel to the sagittal plane of the patient. A method for performing an open wedge, high tibial osteotomy, the method comprising: positioning targeting apparatus for identifying a cutting plane through the tibia and a boundary line for terminating a cut made along the cutting plane, wherein the boundary line is located within the tibia, parallel to the anterior-posterior slope of the tibia and parallel to the sagittal plane of the patient; cutting the bone along the cutting plane, with the cut terminating at the boundary line; moving the bone on either side of the cut apart so as to form the wedge-like opening in the bone; and stabilizing the bone.
摘要:
Apparatus for performing an open wedge, high tibial osteotomy, the apparatus comprising: cutting apparatus for forming an osteotomy cut in the tibia, the cutting apparatus comprising: targeting apparatus for identifying a cutting plane through the tibia and a boundary line for terminating a cut made along the cutting plane, wherein the boundary line is located within the tibia, parallel to the anterior-posterior slope of the tibia and parallel to the sagittal plane of the patient. A method for performing an open wedge, high tibial osteotomy, the method comprising: positioning targeting apparatus for identifying a cutting plane through the tibia and a boundary line for terminating a cut made along the cutting plane, wherein the boundary line is located within the tibia, parallel to the anterior-posterior slope of the tibia and parallel to the sagittal plane of the patient; cutting the bone along the cutting plane, with the cut terminating at the boundary line; moving the bone on either-side of the cut apart so as to form the wedge-like opening in the bone; and stabilizing the bone.
摘要:
An apparatus and method for performing an open wedge osteotomy. The apparatus includes devices for forming an open wedge osteotomy in bone, including a keyed-wedge implant. The method includes the steps of forming a cut in a bone, forming a keyhole in the bone surface at the proximal end of the cut, and positioning a keyed wedge-shaped implant into the cut formed into the bone.
摘要:
Apparatus for performing an open wedge, high tibial osteotomy, the 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.
摘要:
A keyhole drill guide stabilizer for stabilizing a drill guide when forming a second keyhole after the formation of a first keyhole, wherein the drill guide comprises a first drill bore and a second drill bore, the keyhole drill guide stabilizer comprising a body sized and shaped so as to make a close sliding fit with (i) the first bore of the drill guide, and (ii) the first keyhole, whereby to reduce the possibility of any positional variation between the first and second drilled keyholes.
摘要:
Apparatus for performing an open wedge, high tibial osteotomy, the 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.
摘要:
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.
摘要:
A method and apparatus for performing an open wedge osteotomy utilizing a keyed, wedge-shaped implant for disposition in a keyed, wedge-shaped opening created in a bone. The keys may be disposed in vertical or horizontal arrangements. In addition, a shear rib key hole may be formed adjacent the wedge-shaped opening in the bone.
摘要:
Apparatus for performing an open wedge, high tibial osteotomy, the 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 two keys, laterally offset from one another, for disposition in corresponding keyholes formed in the tibia adjacent to the wedge-shaped opening created in the tibia.
摘要:
Apparatus for performing an open wedge, high tibial osteotomy, the apparatus comprising: a wedge-shaped implant for disposition in a wedge-shaped opening created in the tibia, wherein the wedge-shaped implant comprises a hole extending therethrough; a fixation screw for extending through the hole and securing the wedge-shaped implant to the tibia; and a locking mechanism for releasably locking the fixation screw to the wedge-shaped implant. The fixation screw comprises: a shaft having a distal threaded portion and a proximal threaded portion, wherein the distal threaded portion and the proximal threaded portion are characterized by different thread pitches.