Systems and methods include solutions for fixation at the rib head for fractures and osteotomies adjacent to the rib head and transverse process. The disclosed rib plates, anchor systems, other implants, and instrumentation may also be applied to mid-rib fractures. The systems and methods may be used in the treatment of rib deformities, including the correction of rib hump deformity via thoracoplasty, as well as general corrections of chest and rib deformities. Systems and methods herein may be used in chest wall reconstructions due to trauma, cancer, or deformity.

Systems and methods include solutions for fixation at the rib head for fractures and osteotomies adjacent to the rib head and transverse process. The disclosed rib plates, anchor systems, other implants, and instrumentation may also be applied to mid-rib fractures. The systems and methods may be used in the treatment of rib deformities, including the correction of rib hump deformity via thoracoplasty, as well as general corrections of chest and rib deformities. Systems and methods herein may be used in chest wall reconstructions due to trauma, cancer, or deformity.

A receiver assembly includes a receiver with upright arms extending upward from a base to define an open channel for receiving a rod, and a central bore communicating with a bottom of the base through a bottom opening and having a discontinuous guide and advancement structure proximate the tops of the upright arms. Each upright arm further includes one or more tool engagement grooves extending horizontally and circumferentially below the top of the upright arm to a front or back outer face the receiver. The assembly also includes a closure with a cylindrical outer surface having a continuous guide and advancement structure that is mateable with the discontinuous guide and advancement structure to secure the rod within the open channel without engaging the tops or side outer faces of the upright arms, with the closure top being selected from a single-piece closure body with a solid closed-off bottom surface and two-piece closure body having an outer ring and an inner set screw with a solid closed-off bottom surface:

The present invention is directed at a polyaxial pedicle screw comprising a detachable polyaxial head and bone screw. The detachable polyaxial head may comprise a tulip head, a collet with one or more connectors (e.g., pins) to secure it, and a spherical locking member which may lock onto the bone screw.

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 polyaxial bone screw assembly includes a receiver having an axial bore with a pair of opposed downward-facing shoulder surfaces pre-formed therein between a discontinuous guide and advancement structure and a bottom opening, a shank having a capture portion configured for positioning into the axial bore with the shank extending downward through the bottom opening, and a pressure insert having upward-facing contact surfaces. The pressure insert is configured for positioning into the axial bore of the receiver into a first position and for subsequent rotation about a longitudinal axis by a tool into a second position that locates the upward-facing contact surfaces at least partially under the downward-facing shoulder surfaces to inhibit the pressure insert from moving upwardly within the axial bore.

Systems, devices, and associated methods for correcting spinal column deformities that help minimize a number of attachment anchors utilized for correction, facilitate use of straight or contoured rods, and/or help promote a more natural, physiologic motion of the spinal column.

A pivotal bone anchor assembly includes a shank having an upper capture portion and a lower anchor portion for fixation to the bone of a patient, and a receiver having an open channel for receiving a rod and a lower cavity for pivotably supporting the capture portion in a non- locked configuration. The assembly also includes an insert positionable into the receiver separate from the capture portion and thereafter downwardly deployable by tooling to apply a frictional force toward the capture portion that holds the angular position of the shank relative to the receiver prior to locking the assembly with a closure, with exterior surfaces of the insert entering into a non-threaded frictional biased engagement with interior surfaces of the receiver to maintain the insert in the deployed position. The exterior surfaces of the insert are further disengageable from the interior surfaces of the receiver by tooling to re-establish pivotal movement between the shank and the receiver.

The present invention is directed at a polyaxial pedicle screw comprising a detachable polyaxial head and bone screw. The detachable polyaxial head may comprise a tulip head, a collet with one or more connectors (e.g., pins) to secure it, and a spherical locking member which may lock onto the bone screw.

A vertebral column correction system for correcting a spinal deformity without fusing the joint segments is disclosed. The vertebral column correction system may have first and second vertebral anchors secured to first and second vertebrae. The vertebral column correction system may further comprise one or more intermediate vertebral anchors secured to vertebrae between the first and second vertebrae. A connection member may be disposed within a head portion of the vertebral anchors. At least a portion of the connection member may be a flexible member, such as a flexible cord, configured for tensioning between at least two vertebral anchors for providing a desired amount of tension to apply a correctional force to the spinal column. A spring member, or other tensioning member, may maintain the tension of the connection member.