Abstract: Various methods and devices are provided for connecting spinal fixation elements, such as spinal rods, implanted in a patient's spinal column. In particular, various spinal cross connectors are provided for connecting to one or more spinal fixation elements implanted in a patient's spine. The cross connectors can have a variety of configurations, including a fixed or adjustable length, as well as various features that allow certain portions of the cross connectors to be angularly oriented.

Abstract: Methods and devices that utilize segmental fixation between several adjacent vertebrae, thus allowing each vertebrae to be adjusted independently, are provided. In general, the device includes a spinal anchoring element that is adapted to seat at least one spinal fixation element, and a closure mechanism that is adapted to mate to the spinal anchoring element to lock the at least one spinal fixation element in a fixed position relative to the spinal anchoring element.

Abstract: Methods and devices for implanting spinal fixation implants and devices are provided. In one embodiment, a method for implanting a spinal fixation system is provided and it includes the steps of positioning a spinal fixation element to extend along a patient's spinal column adjacent to one or more vertebrae, determining an implant site on at least one vertebra, implanting at least one spinal anchor at the implant site on at least one vertebra, and coupling the spinal fixation element to each implant.

Abstract: A bone anchor assembly includes a bone anchor, a receiver member for receiving a spinal fixation element to be coupled to the bone anchor, and a closure mechanism to fix the spinal fixation element with respect to the receiver member. The bone anchor includes a distal shaft having a distal threaded section and a proximal threaded section. The distal threaded section has a first pitch and a first number of thread starts and the proximal threaded section has a second pitch less than the first pitch and a second number of thread starts greater than the first number of thread starts. The distal threaded section and the proximal threaded section have a constant lead.

Abstract: Various methods and devices are provided for connecting spinal fixation elements, such as spinal rods, implanted in a patient's spinal column. In particular, various spinal cross connectors are provided for connecting to one or more spinal fixation elements implanted in a patient's spine. The cross connectors can have a variety of configurations, including a fixed or adjustable length, as well as various features that allow certain portions of the cross connectors to be angularly oriented.

Abstract: Methods and devices for implanting spinal fixation implants and devices are provided. In one embodiment, a method for implanting a spinal fixation system is provided and it includes the steps of positioning a spinal fixation element to extend along a patient's spinal column adjacent to one or more vertebrae, determining an implant site on at least one vertebra, implanting at least one spinal anchor at the implant site on at least one vertebra, and coupling the spinal fixation element to each implant.