A bone screw comprises a main body including a shank portion, a head portion attached to the shank portion, and a cap moveably attached to the head portion. The head portion includes a tool interface structure therein having a closed end portion, an open end portion and sidewall extending therebetween. A tool lock recess is provided in at least one of the sidewalls of the tool interface structure. The tool interface structure is accessible through an opening within an exterior surface of the cap.

A compression device may include, but is not limited to, a threaded body, a sliding element, and a compression element connecting the threaded body and the sliding element. According to one embodiment, upon implantation, the threaded body contacts a first bony fragment and the sliding element contacts to a second bony fragment. In at least one embodiment, upon being engaged, the compression element applies sustained tension to the sliding element and opposing tension to the threaded body, thereby compressing the first bony fragment and the second bony fragment along a plane of contact promoting healing.

A surgical instrument for the nondestructive removal of screws or fasteners, the device includes an elongated body having a first end including a handle portion and a second end including a screw engaging portion, the first end is offset at an angle to the second end, the screw engaging portion is a bifurcated protrusion that includes a first part and a second part wherein the first and second parts define a generally V-shaped groove; the protrusion has an exterior surface that is biocompatible and retains a cutting edge, the instrument is configured for impaction and bending resistance.

Methods of joint repair employing sutures and attached fixation devices are discussed. For example, a bone block graft procedure (e.g., Latarjet) is discussed which employs fixation devices to secure contact between graft surfaces of two bones. A suture construct, including a continuous suture loop routed through a first fastener, is secured to a first bone. Looped ends of the suture loop are passed through passageways formed in the two bones. The looped suture ends are further routed through a second fastener. The second fastener is mounted to the second bone and a sliding knot, formed in the looped suture ends, is advanced into contact with the second fastener. The suture is further tensioned using a tensioner device to secure the two bones together.

Methods and devices for treating spinal deformities are provided. In one exemplary embodiment, a low-profile spinal anchoring device is provided for receiving a spinal fixation element, such as a tether, therethrough. The device generally includes a staple body that is adapted to seat a spinal fixation element, a fastening element for fixing the staple body to bone, and a locking assembly for coupling a spinal fixation element to the staple body. In one embodiment, the locking assembly includes a washer that is adapted to couple to the staple body such that the spinal fixation is disposed therebetween, and a locking nut that is adapted to engage the staple body to mate the washer to the staple body.

A surgical system includes a bone fastener having a head and a shaft, The head has a drive interface surface including elliptical edges. A surgical instrument includes an inner drive and an outer sleeve that is engageable with an outer surface of the head to dispose the inner drive and the outer sleeve with the head in a co-axial, capture orientation, The inner drive has a drive interface surface including a plurality of spaced apart lobes. Each lobe has an elliptical edge engageable with one of the elliptical edges of the drive interface surface of the head. Spinal constructs, implants and methods are disclosed.

A twist-drivable pin assembly includes first and second drivers, each having a driving end which can be received in a bore in the end of a twist-drivable pin, and an opposite end at which torque can be applied. The cross-sectional shape of each of the drivers at its driving end has a first plurality of apexes whose relative locations coincide with the apexes of a regular polygon such as a hexagon. The drivers differ from one another in their cross-sectional shapes at the driving end by virtue of one or more faces of at least one of the drivers between adjacent pairs of apexes having a groove formed in it. Each of first and second twist-drivable pins has a bore extending into it which is defined by a second plurality of apexes arranged as a regular polygon such as a hexagon and which is open at one end.

Methods of joint repair employing sutures and attached fixation devices are discussed. For example, a bone block graft procedure (e.g., Latarjet) is discussed which employs fixation devices to secure contact between graft surfaces of two bones. A suture construct, including a continuous suture loop routed through a first fastener, is secured to a first bone. Looped ends of the suture loop are passed through passageways formed in the two bones. The looped suture ends are further routed through a second fastener. The second fastener is mounted to the second bone and a sliding knot, formed in the looped suture ends, is advanced into contact with the second fastener. The suture is further tensioned using a tensioner device to secure the two bones together.

Provided are a screw driver system and a screw driving bit. The screw driving bit includes a body having a first end and a second end with a longitudinal axis defined therebetween and an outer surface between the first and second ends. The screw driving bit includes a first circumferential groove and a second circumferential groove that are affixed in coaxially positioned arrangement about the longitudinal axis on the outer surface of the body each having a bottom surface. The bottom surface of the first circumferential groove defines a first outer diameter that is larger than a second outer diameter defined by the second circumferential groove. The guide clamp includes a jaw for holding the screw driving bit. When engaged with the first circumferential groove, the guide clamp prevents rotation of the screw driving bit. When engaged with the second circumferential groove, the guide clamp does not prevent rotation of the screw driving bit.

A compression nut for treating a bone includes a head and a body extending longitudinally from the head to a free end. The body includes an exterior threading along an exterior surface of a threaded portion of the body separated from the head via an unthreaded portion. The nut also includes a channel extending longitudinally through the body. The channel includes an interior threaded extending along an interior surface of the channel configured to threadedly engage an end of a locking screw received therein.