Abstract: Instruments and methods for preparing an intervertebral space for receiving an implant. An adjustable trial implant has an adjustable stop mechanism having a stop member connected thereto to vary the distance that a body portion of the trial implant can move into the intervertebral space. Cutting tools for forming cutouts in the adjacent vertebrae use the trial implant and/or a guide to position a cutting tool which may be a burr or a chisel. The chisel cutting tool can be moveable relative to a selected trial implant or the chisel cutting tools can be fixed onto a trial implant shaped body portion.

Abstract: Instruments and methods for inserting an intervertebral implant. Insertion of the implant is accomplished by grasping the implant between the arms of an insertion instrument having arms which separate from each other and close against each other onto the implant, such that the ends of the arms of the insertion instrument engage recesses of the implant. A spacer may be provided between the arms of the insertion instrument to help position the implant while held by the arms.

Abstract: Trials for spinal surgery include: (a) a trial implant portion having a shape corresponding to an implantable spinal disc implant; (b) a shaft connected to the trial implant portion; and (c) at least one axially extending cutting guide slot attached to the shaft at a position that is axially spaced apart from the trial implant portion, the cutting guide slot configured to releasably slidably receive and guide a cutting blade toward vertebral bone. Also described are additional surgical instruments, including, for example, pilot-hole punches, inserters, and methods of cutting keelways.

Abstract: An intervertebral implant, alone and in combination with an insertion tool for inserting same and a method for inserting same. The implant has upper and lower parts which have universal movement relative to each other. Each of the upper and lower parts also has a surface engaging an adjacent vertebrae. Each part has a keel extending from said surface into a cutout in the adjacent vertebrae, and each keel has an anterior opening recess therein. An insert tool has a pair of arms which are received in the recess of the keels through the anterior opening to securely hold and insert the implant. Projections and matching indentations in each arm and the base of its recess securely attached each arm within its keel.

Abstract: An intervertebral implant, alone and in combination with an insertion tool for inserting same and a method for inserting same. The implant has upper and lower parts which have universal movement relative to each other. Each of the upper and lower parts also has a surface engaging an adjacent vertebrae. Each part has a keel extending from said surface into a cutout in the adjacent vertebrae, and each keel has an anterior opening recess therein. An insert tool has a pair of arms which are received in the recess of the keels through the anterior opening to securely hold and insert the implant. Projections and matching indentations in each arm and the base of its recess securely attached each arm within its keel.

Abstract: Instruments and methods for inserting an intervertebral implant. Insertion of the implant is accomplished by grasping the implant between the arms of an insertion instrument having arms which separate from each other and close against each other onto the implant, such that the ends of the arms of the insertion instrument engage recesses of the implant. A spacer may be provided between the arms of the insertion instrument to help position the implant while held by the arms.

Abstract: Instruments and methods for inserting an intervertebral implant. Insertion of the implant is accomplished by grasping the implant between the arms of an insertion instrument having arms which separate from each other and close against each other onto the implant, such that the ends of the arms of the insertion instrument engage recesses of the implant. A spacer may be provided between the arms of the insertion instrument to help position the implant while held by the arms.

Abstract: In an implant for fusion of bones or bone parts, particularly of the carpal region of a wrist, as well as for application of compression between the bones or bone parts, a base body with bone screws is provided, which are guided in recesses that possess a geometry by means of which the compression between the bone, in each instance, can be adjusted, whereby the base body is configured with rotation symmetry. The geometry of its recesses has the shape of an oblong hole curved in the circumference direction of the base body, in each instance, whose curvature, with reference to the central axis of the base body, runs at an incline to this axis, in such a manner that the bone screws screwed into the bones and guided in the recesses in the manner of a motion link can be moved in the direction of the inclined oblong holes, radially toward the central axis of the base body, by means of a rotational movement of the base body.

Abstract: The invention relates to a joint part prosthesis, particularly for a finger joint, consisting either of a proximal or a distal component as well as a shaft extending away from this component, to be mounted in a bone. The invention provides that the shaft (4) is at least partially formed as an expansion sleeve (7).

Abstract: The invention relates to a joint part prosthesis, particularly for a finger joint, consisting of either a proximal or a distal component, as well as a shaft that extends away from this component, to be mounted in a bone, which shaft is configured with a fin-like anti-twist device. According to the invention, it is provided that as an anti-twist device (7), at least two anti-twist elements (8) are disposed on the mantle surface (6) of the shaft (4), with rotation symmetry, and extend radially away from this mantle surface (6) and in the longitudinal direction of the shaft (4), whereby the distance of the anti-twist elements (8) from the mantle surface (6) decreases slightly in the direction toward the free end (5) of the shaft (4).

Abstract: The invention relates to the preparation of an intervertebral space with a trial implant (9), the insertion of an implant (5, 6, 7), the inserters (13, 16), and the method for feeding and inserting the implant (5, 6, 7) by means of an oblique anterior approach. In the novel improved method, the associated instruments (13, 16) for inserting an implant (5, 6, 7) into an intervertebral space, in particular for the lumbar spine at an oblique anterior angle of 45° was developed, the left side of the body being preferred for insertion of the implant (5, 6, 7). Either the implant (5, 6, 7) can be inserted all in one, or first the upper part (5) and lower parts (7) and then the inlay (6) may be inserted. By insertion by means of the left oblique anterior approach at 45°, optimum utilization of the area of the intervertebral space is ensured (footprint), and better retention of the implant is guaranteed by the exact chiselling at an angle of 90° normal to the respective intervertebral surface.

Abstract: An instrument and method are disclosed for inserting an artificial intervertebral disc implant having upper and lower parts and a pivot element therebetween into an intervertebral space. The instrument has a mounting structure, and an elongated upper arm and elongated lower arms, the arms being pivotally attached to the mounting structure. A distractor separates the upper and lower arms, and hence the upper and lower parts, when moving along the arms so as to permit insertion of the pivot element. The distractor includes a fork arm that extends beyond a main body thereof to engage and support with heads thereof a facing surface of the upper and/or lower part during and following separation of the parts.

Abstract: Instruments and methods for preparing an intervertebral space for receiving an implant. An adjustable trial implant has an adjustable stop mechanism having a stop member connected thereto to vary the distance that a body portion of the trial implant can move into the intervertebral space. Cutting tools for forming cutouts in the adjacent vertebrae use the trial implant and/or a guide to position a cutting tool which may be a burr or a chisel. The chisel cutting tool can be moveable relative to a selected trial implant or the chisel cutting tools can be fixed onto a trial implant shaped body portion.

Abstract: An orthopedic screw fastener system, includes at least one screw, consisting in each case of a screw head and of a screw shank, the screw head being provided with a thread, and at least one plate with a thickness, provided with at least one through-bore which is able to receive a screw. The plate has a through-opening, formed by at least two through-bores, each through-bore being defined by a midpoint and by a radius, and the through-bores are offset relative to each other and intersect each other in such a way that intersection lines and/or intersection surfaces form, which extend into the depth of the through-opening.

Abstract: Trials for spinal surgery include: (a) a trial implant portion having a shape corresponding to an implantable spinal disc implant; (b) a shaft connected to the trial implant portion; and (c) at least one axially extending cutting guide slot attached to the shaft at a position that is axially spaced apart from the trial implant portion, the cutting guide slot configured to releasably slidably receive and guide a cutting blade toward vertebral bone. Also described are additional surgical instruments, including, for example, pilot-hole punches, inserters, and methods of cutting keelways.

Abstract: A surgical instrument for implanting a wire, preferably into a bone, can be operated with one hand and thus acts as an extension of a surgeon's arm. The instrument is made up of a receiving element and a clamp part and also of a grip element. The grip element has two grip parts, the receiving element including the first grip part, and the clamp part including the second grip part. The receiving element has a recess for at least partial support of the wire, and the clamp part is mounted on the receiving element, so as to be able to move in rotation about a bearing point, and includes a clamp element which engages in the recess and is designed in such a way that, when the grip parts are pressed together, the clamp part presses the wire against the support.

Abstract: Instruments and methods for preparing an intervertebral space for receiving an implant. An adjustable trial implant has an adjustable stop mechanism having a stop member connected thereto to vary the distance that a body portion of the trial implant can move into the intervertebral space. Cutting tools for forming cutouts in the adjacent vertebrae use the trial implant and/or a guide to position a cutting tool which may be a burr or a chisel. The chisel cutting tool can be moveable relative to a selected trial implant or the chisel cutting tools can be fixed onto a trial implant shaped body portion.

Abstract: Instruments and methods for preparing an intervertebral space for receiving an implant. An adjustable trial implant has an adjustable stop mechanism having a stop member connected thereto to vary the distance that a body portion of the trial implant can move into the intervertebral space. Cutting tools for forming cutouts in the adjacent vertebrae use the trial implant and/or a guide to position a cutting tool which may be a burr or a chisel. The chisel cutting tool can be moveable relative to a selected trial implant or the chisel cutting tools can be fixed onto a trial implant shaped body portion.

Abstract: A sizing instrument for measuring a size of a bodily joint, such as an intervertebral disc space. The instrument includes an expansion assembly, a handle assembly, and an indicator assembly. The expansion assembly includes a movable member that is transversely transitionable relative to a reference member between a first position and a second position. The handle assembly actuates the moveable member. The indicator assembly includes an indicator adapted to communicate a dimensional measurement associated with the second position of the moveable member.

Abstract: An intervertebral implant, alone and in combination with an insertion tool for inserting same and a method for inserting same. The implant has upper and lower parts which have universal movement relative to each other. Each of the upper and lower parts also has a surface engaging an adjacent vertebrae. Each part has a keel extending from said surface into a cutout in the adjacent vertebrae, and each keel has an anterior opening recess therein. An insert tool has a pair of arms which are received in the recess of the keels through the anterior opening to securely hold and insert the implant. Projections and matching indentations in each arm and the base of its recess securely attached each arm within its keel.