Abstract: An adjustable rod for spinal corrective surgery is provided that includes a first elongate member and a second elongate member, each having rod portions couplable to one or more bone connecting elements and expansion portions slidably moveable with respect to one another. A plurality of holes in each expansion portion are alignable with one another to choose the length of the adjustable rod and a locking element is inserted through a pair of aligned holes to couple the first and second elongate members and secure or fix the length of the expandable rod.

Abstract: A reamer for use in performing arthroplasty includes a first cutting structure having an inner concave surface that defines a first cavity and terminates in a generally circular leading edge. The inner concave surface includes a first cutting feature that is spaced apart from the leading edge. An elongate member extends from the first cutting structure into the first cavity toward the leading edge that includes a second cutting feature. A second cutting structure is secured to the elongate member and positioned within the first cavity. The second cutting structure extends outwardly from the elongate member toward the inner concave surface and includes a third cutting feature.

Abstract: An intervertebral implant comprises first and second parts having outer surfaces engaging adjacent vertebral surfaces. An insert between these parts provides relative movement therebetween. The first and/or second parts may have engagement means in the form of apertures for engagement with insertion instruments. The first and second parts may nest together, in the absence of the insert, for insertion into the intervertebral space. The boundaries of the implant may form a working space which would include insertion instruments therein. A detent and detent recess may be provided for engagement of the insert and one of said first and second parts.

Abstract: A flexible connection unit for spinal stabilization, including: a first end portion having a first longitudinal channel and configured to be coupled to a first securing member secured to a patient's spine; a second end portion having a second longitudinal channel and configured to be coupled to a second securing member secured to the patient's spine; and a flexible wire extending through at least a portion of the first and second longitudinal channels and flexibly linking the first and second end portions.

Abstract: A system for preparing an implant for implantation includes a trial implant including a first dialable component and a datum, a final implant including a second dialable component, and an instrument including (i) a base assembly configured to support the trial implant so that the datum is in a predetermined orientation, (ii) a fixture supported on the base assembly, the fixture including a domed element, and an alignment tool configured to engage the first dialable component when the trial implant is supported by said base assembly, and (iii) a locking assembly including a guide member defining a spherical surface for nested engagement with said domed element, the locking assembly configured to record the angular orientation of said alignment tool relative to said fixture with said alignment tool engaged with the first dialable component, and to replicate the recorded angular orientation with the alignment tool and a second dialable component.

Abstract: The present invention relates to an interspinous spacer (10, 10?, 10?, 10??, 10??, 10???) for implantation between adjacent spinous process (SP) to treat spinal stenosis. The interspinous spacer preferably includes a W-shaped or S-shaped leaf spring body member (21) for insertion between adjacent spinous processes and one or more wire straps (42) extending from the body to attach the spacer to the adjacent spinous processes. The wire straps are preferably sized and configured to extend from one side of the leaf spring, along one side of a spinous process, over or under the spinous process to the other side wherein the wire strap can be coupled to the leaf spring. Alternatively, the spacer may include one or more hooks (60) for engaging one or both of the adjacent spinous processes.

Abstract: A measuring device 1 configured to receive a drill bit 3, and determine the relative displacement of the drill bit 3, is disclosed. The measuring device 1 is configured to be deployed proximate to the material to be drilled, reset, and subsequently determine the relative displacement of the drill bit 3. The measuring device 1 can be used in orthopaedic surgery procedures for determining the depth of a bore hole in bone.

Abstract: An orthopaedic implant comprises a fixation plate and an articulation component comprising a bearing surface and an opposing securement surface formed of a porous material. The orthopaedic implant further includes at least one fastener extending through the fixation plate and secured within the porous material of the securement surface of the articulation component.

Abstract: A device for binding a cable about a fractured bone to stabilize a fracture comprises a slot including a distal opening sized to receive an enlarged end of a cable and a proximal opening sized to permit the cable to slide therethrough while preventing the enlarged end from passing therethough and a bore sized to slidably receive the cable, the bore extending to a proximal opening in combination with a locking element channel extending to a distal end opening into the bore and a locking element movable into a locking position in which a distal end of the locking element extends into the bore to engage a portion of the cable received therein and lock the cable in a desired position within the bore.

Abstract: A liner adapted for insertion into an acetabular shell for use in hip arthroplasty. The liner includes a concave inner surface adapted to engage a femoral head. The liner also includes an outer surface adapted to engage the acetabular shell and a rim that extends between the inner surface and the outer surface. The outer surface includes a locking section extending from the rim, a composite-curved section extending from the locking section at a first transition point, and a dome section extending from the composite-curved section, wherein at the first transition point, the composite-curved section is tangential to the locking section.

Abstract: A method for assembling a glenoid assembly. The method includes using a base having a first side and an opposing second side. The first side includes a plurality of connection features arranged in an array. The method further includes using a plurality of glenoid attachment members, wherein each of the plurality of glenoid attachment members has a locking mechanism. One of the plurality of glenoid attachment members is selected and is connected to the base by connecting the locking mechanism of the selected one of the plurality of glenoid attachment members to one of the plurality of connection features of the base.

Abstract: A growing rod for mounting between attachment mechanisms that are secured to anatomical structures of a patient having scoliosis. The growing rod includes an outer housing and an inner housing disposed within the outer housing. The inner housing includes a magnet assembly including a magnet having a first pole and a second pole and a gear reduction mechanism coupled to the magnet. A first rod is secured to the inner housing and a second rod is secured to the outer housing. The gear reduction mechanism reduces an output rotation of the magnet to rotate a driver that operates to move the inner housing along a longitudinal axis with respect to the outer housing.

Abstract: Reciprocating rasps for the surgical preparation of the bone prior to the implantation of a glenoid or acetabular component with complex geometry are disclosed. Surgical methods for the use of such reciprocating rasps are also disclosed.

Abstract: An implantable spinal cross connector is provided for connecting one or more spinal fixation devices, and more preferably for connecting two spinal fixation rods that are implanted within a patient's spinal system. In general, an exemplary cross connector in accordance with the present invention includes an elongate body with at least one rod-receiving recess formed therein, and a locking mechanism that is adapted to couple to the elongate body and that is effective to lock a spinal fixation rod within the rod-receiving recess(es). The present invention also provides an inserter tool to facilitate implanting a spinal implant or device, such as a spinal cross connector.

Abstract: A method of treating a vertebra, comprising: (a) accessing an interior of a vertebra; and (b) introducing a sufficient amount of artificial biocompatible material which does not set to a hardened condition in storage, into said bone, with sufficient force to move apart fractured portions of said bone.

Abstract: A kit for reaming a portion of a long bone cavity for use in implanting a joint prosthesis, the reamers for cooperation with portions of an orthopaedic implant component. The kit includes a distal reamer for reaming a distal portion of the long bone and a proximal reamer for reaming a proximal portion of the long bone. The kit further includes a pilot shaft for insertion into a reamed distal portion and attachment to the proximal reamer during the reaming of the proximal portion. At least one of the distal reamer, proximal reamer, and pilot shaft is expandable, such that the at least one of the distal reamer, proximal reamer, and pilot shaft includes an expandable body adapted to adjust between a plurality of diameters.

Abstract: A bone fixation system includes a bone fixation device, including a first element having a first channel extending therethrough and a second element including a proximal portion sized and shaped to be received within the first channel such that the longitudinal axes of the first and second elements are substantially coaxial and a distal portion including a bone engaging structure, a proximal end of the second element slidably locked within the first channel such that the first and second elements are longitudinally movable relative to one another between a permitted range of motion. The system also includes a driving tool, including an outer sleeve and an inner sleeve slidably received therethrough, a distal end of the outer sleeve configured to engage the proximal end of the first element to prevent relative rotation therebetween, a distal end of the inner sleeve configured to engage the proximal end of the second element.

Abstract: An adjustable rod for spinal corrective surgery is provided that includes a first elongate member and a second elongate member, each having rod portions couplable to one or more bone connecting elements and expansion portions slidably moveable with respect to one another. A plurality of holes in each expansion portion are alignable with one another to choose the length of the adjustable rod and a locking element is inserted through a pair of aligned holes to couple the first and second elongate members and secure or fix the length of the expandable rod.

Abstract: A two-piece fusion cage having opposed interior surfaces, vertical and lateral throughholes adapted to enhance fusion and a dovetail feature mating the opposed interior surfaces.

Abstract: A method and device for inserting screws into a patient, such that when the device is removed the device does not stick to the screw. The device, being a push-off driver, may have a handle, an inner driver, and a threaded driver sleeve having a button mechanism and a plurality of spheres, and an inner sleeve. The method includes the steps of assembling a push-off driver attaching a bone screw to the push-off driver inserting the bone screw and detaching the bone screw from the driver by unthreading the threaded driver sleeve from the polyaxial screw which causes the spheres in the recess of the inner driver to back up against the start of the recess and causing the threaded driver sleeve to “push-off” the polyaxial screw from the inner driver.