Abstract: An orthopaedic gauge 1 for measuring a length dimension of an elongated orthopaedic device, such as a screw 50, 60, or 70 or a pin or other elongated orthopaedic device. The gauge 1 includes a base portion 10 having a fixed reference point thereon, such as a raised post 12, and a raised platform 20 extending from the base portion 10 and spaced from the reference point. The raised platform 20 includes a plurality of stops 22. One end of the orthopaedic device is positioned about the reference point and the device is swung through an arc about the reference point until the other end of the device abuts one of the plurality of stops on the raised platform. A suitable scale such as 38 or 39 is provided to correspond with the plurality of stops for determining a length dimension of the device.

Abstract: A modular prosthesis system which includes a modular stem extension which has an offset between its attachment point to the prosthesis base portion and the main body of the stem. The stem extension can be attached in a selected orientation with respect to the base portion, thus enabling the main body of the stem to be positioned in any of one of a plurality of orientations with respect to the base portion.

Abstract: An acetabular cup inserting instrument includes a first handle and a second handle rotatable about and extending from the first handle. The second handle is ratchetable about the first handle and selectively lockable in a desired position with respect to the first handle. The ratchet mechanism of the second handle includes a biased pawl that engages radially spaced notches on the first handle.

Abstract: A spinal implant system including components designed to be affixed to the spinal column. The system includes spinal rods, attachment devices, and interpositional sleeves for securing the attachment devices to the rods. The attachment devices may be various types of spinal hooks, screws, couplers, rod connectors, clamps, or other such devices.

Abstract: The present invention relates to a locking sleeve assembly for use in a posterior spinal system including components designed to be affixed to the spinal column of a person to correct for various lateral and sagittal deformities. The locking sleeve assembly is for interconnecting an elongated rod with another structure. The locking sleeve assembly includes an elongated sleeve having a bore therethrough. The sleeve has a tapered first end and a second end having a lock member thereon. The sleeve includes at least one split extending into the sleeve. The bore is sized to slidably receive the rod. The tapered surface of the sleeve is insertable into a tapered passage of the other structure with the rod in the bore, to form an interference fit between the two tapered surfaces.

Abstract: A femoral component of a knee prosthesis, including a cobalt-based alloy substrate and a titanium fiber metal pad bonded thereto by means of an interlayer of a cobalt-based alloy including nickel. More specifically, a method of bonding a titanium porous surface to a cobalt-based alloy in an orthopaedic implant device, by first applying an interlayer of a cobalt-based alloy including nickel to the substrate and then bonding a porous structure to the interlayer. In one embodiment, an interlayer of L-605 is first applied to a substrate of Co-Cr-Mo by diffusion bonding at approximately 2200.degree. F. and then a fiber metal pad of CP-titanium is diffusion bonded to the interlayer at approximately 1650.degree. F. A layer of CP-titanium may optionally be placed intermediate the fiber metal pad and interlayer before the second diffusion step. In an alternative embodiment, MP-35N alloy may be substituted for the L-605 alloy.

Abstract: A surgical reamer assembly for cutting a planar bone surface. The surgical reamer assembly enables the angle or the level of the cutting of the planar reamer to be adjusted. This adjustment is advantageously provided by the use of an adaptor which is positioned between the base support and the planar reamer.

Abstract: An orthopaedic prosthesis for implanation in a bone, the prosthesis including a collar extending outwardly therefrom. The collar includes an access recess aligned above the bone cement when the stem is implanted with cement in bone, or aligned above the bone/implant interface when the stem is biologically affixed to the bone. The access recess may be a dimple partially extending into the collar or it may be a through hole. The dimple provides a preset drill start for a drill to be aligned therewith for drilling through the collar to form a hole therethrough. In either case, whether starting with a dimple and then forming a hole or starting directly with a through hole, the hole may be progressively enlarged by use of sequentially larger drill sizes.

Abstract: An instrument for bending a rod, wherein the instrument includes an elongated handle and an angled tip extending therefrom. The tip includes a channel or bore therethrough for receiving the rod. The top side of the tip may include a flat surface thereon. Two such instruments are used to bend a rod by inserting one end of the rod into the channel of one instrument and the other end of the rod into the channel of the other instrument. Force is applied to the instruments to preliminarily bend the rod. The instruments are each then rotated 180 degrees, and further force is then applied to the instruments to further bend the rod. The force may be applied until the flat surface on each instrument abuts each other.

Abstract: A set of hip prosthesis components including a plurality of head components and an adaptor component for use in assembling together one of the head components and a femoral stem component. The first head component is an endo head component having a first bore of a first shape or length. The second head component includes a second bore that is of a second shape or length different from the first shape or length. The adaptor includes an axially extending protruding portion wherein the first shape or length of the first bore is sufficient for the bore to accept and frictionally retain therein the protruding portion. The second shape or length of the second bore is insufficient or inappropriate for the second bore to frictionally retain therein the protruding portion.

Abstract: A set of provisional prosthesis instrumentation including an outer shell component, a first inner component, and a second inner component different from the first inner component. The first inner component comprises a substantially hemispherical interior surface therein, while the second inner component comprises a nonhemispherical, truncated cone or a nonhemispherical, substantially cylindrical surface therein. Either the first inner component style or the second inner component style may be selectively inserted into the shell component. The first and second inner components (inserts) are releasably connectable with the shell. The first style inner component may typically be used as a provisional for a bipolar prosthesis for a hemiarthroplasty procedure, while the second style of inner component may typically be used as a unipolar endoprosthesis provisional for a hemiarthroplasty procedure. The same style of shell component is utilized for both styles of inner components.