Abstract: An embodiment includes devices and methods for using an expandable intervertebral body fusion device with two expansion wedges within a generally hollow main body. After implantation into the intervertebral disc space, the expansion wedges are simultaneously moved from the center of the device toward the ends, which flexes the arms of the cage and increases the size of the implant. This expansion stabilizes the device in the disc space and increases the disc height, thereby reducing foraminal compression of spinal nerves and creating a stable motion segment for eventual fusion. Other embodiments are described herein.

Abstract: An embodiment includes an expandable intervertebral body fusion device with two expansion wedges within a generally hollow main body. After implantation into the intervertebral disc space, the expansion wedges are simultaneously moved from the center of the device toward the ends, which flexes the arms of the cage and increases the size of the implant. This expansion stabilizes the device in the disc space and increases the disc height, thereby reducing foraminal compression of spinal nerves and creating a stable motion segment for eventual fusion. Other embodiments are described herein.

Abstract: An embodiment includes an expandable intervertebral body fusion device with two expansion wedges within a generally hollow main body. After implantation into the intervertebral disc space, the expansion wedges are simultaneously moved from the center of the device toward the ends, which flexes the arms of the cage and increases the size of the implant. This expansion stabilizes the device in the disc space and increases the disc height, thereby reducing foraminal compression of spinal nerves and creating a stable motion segment for eventual fusion. Other embodiments are described herein.

Abstract: An embodiment includes a system comprising: a lower piston in a lower chamber and an upper piston in an upper chamber; a filter between the lower and upper pistons; at least one processor and memory to: move the lower piston away from the filter, while the upper piston is still, to draw bone marrow aspirate (BMA) into the lower chamber from an external container; move the lower piston towards the filter while simultaneously moving the upper piston away from the filter to advance BMA fluid of the BMA from the lower chamber across the filter and into the upper chamber and to locate BMA cells of the BMA adjacent the filter and within the lower chamber; move the lower piston toward the filter, while the upper piston is still, to advance the BMA cells out of the lower chamber and into one of the external container and another external container.

Abstract: An embodiment includes an expandable intervertebral body fusion device with two expansion wedges within a generally hollow main body. After implantation into the intervertebral disc space, the expansion wedges are simultaneously moved from the center of the device toward the ends, which flexes the arms of the cage and increases the size of the implant. This expansion stabilizes the device in the disc space and increases the disc height, thereby reducing foraminal compression of spinal nerves and creating a stable motion segment for eventual fusion. Other embodiments are described herein.

Abstract: An embodiment includes an expandable intervertebral body fusion device with two expansion wedges within a generally hollow main body. After implantation into the intervertebral disc space, the expansion wedges are simultaneously moved from the center of the device toward the ends, which flexes the arms of the cage and increases the size of the implant. This expansion stabilizes the device in the disc space and increases the disc height, thereby reducing foraminal compression of spinal nerves and creating a stable motion segment for eventual fusion. Other embodiments are described herein.

Abstract: An embodiment includes an expandable intervertebral body fusion device with two expansion wedges within a generally hollow main body. After implantation into the intervertebral disc space, the expansion wedges are simultaneously moved from the center of the device toward the ends, which flexes the arms of the cage and increases the size of the implant. This expansion stabilizes the device in the disc space and increases the disc height, thereby reducing foraminal compression of spinal nerves and creating a stable motion segment for eventual fusion. Other embodiments are described herein.

Abstract: An embodiment includes an expandable intervertebral body fusion device with two expansion wedges within a generally hollow main body. After implantation into the intervertebral disc space, the expansion wedges are simultaneously moved from the center of the device toward the ends, which flexes the arms of the cage and increases the size of the implant. This expansion stabilizes the device in the disc space and increases the disc height, thereby reducing foraminal compression of spinal nerves and creating a stable motion segment for eventual fusion. Other embodiments are described herein.

Abstract: An embodiment includes an expandable intervertebral body fusion device with two expansion wedges within a generally hollow main body. After implantation into the intervertebral disc space, the expansion wedges are simultaneously moved from the center of the device toward the ends, which flexes the arms of the cage and increases the size of the implant. This expansion stabilizes the device in the disc space and increases the disc height, thereby reducing foraminal compression of spinal nerves and creating a stable motion segment for eventual fusion. Other embodiments are described herein.

Abstract: An embodiment includes an expandable intervertebral body fusion device with two expansion wedges within a generally hollow main body. After implantation into the intervertebral disc space, the expansion wedges are simultaneously moved from the center of the device toward the ends, which flexes the arms of the cage and increases the size of the implant. This expansion stabilizes the device in the disc space and increases the disc height, thereby reducing foraminal compression of spinal nerves and creating a stable motion segment for eventual fusion. Other embodiments are described herein.

Abstract: A surgical distractor for distracting a joint space to facilitate passage of a surgical tool. The distractor includes a first arm, a second arm, a coupling device, and a limit device. Each arm includes a handle portion and a flange. The coupling device pivotably couples the first and second arms such that the flanges combine to define a passage. A size of the passage increases when transitioning the distractor from a first state of expansion to a second state of expansion. The limit device is associated with the arms for selectively preventing transitioning of the distractor from the second state of expansion to the first state of expansion. In some embodiments, the flanges, and thus the passage, is laterally and/or angularly offset from the handle portions.

Abstract: A sizing instrument for measuring a bodily joint bounded by top and bottom surfaces, such as a disc space bounded by a top vertebra and a bottom vertebra, including a jaw assembly, a handle assembly, and an indicator portion. The jaw assembly includes an upper contact pad and a lower contact pad. The upper pad is adapted to substantially rigidly engage the top surface, and the lower pad is adapted to substantially rigidly engage the bottom surface. The handle assembly is linked to the jaw assembly and is adapted to vary a distance between the upper contact pad and the lower contact pad. In turn, the indicator portion is adapted to communicate the distance between the upper contact pad and the lower contact pad.

Abstract: A method and associated system of implanting a vertebral anchor such as a pedicle screw assembly includes the steps of implanting a number of pedicle screws into a series of vertebrae; attaching a number of provisional posts to respective pedicle screws, each provisional post including a provisional saddle; bending a rod to conform to a desired alignment of the provisional saddles; removing the provisional posts from the pedicle screw heads; and connecting the bent rod to the pedicle screw heads. Advantageously, the method allows external fitting and sizing of a fixation rod before it is implanted and secured to the vertebral anchors via a minimally invasive manner.

Abstract: A surgical instrument for use during a spinal surgery procedure. The surgical instrument being configured to distract two adjacent vertebral elements as retract the nerve root to provide access to the distracted site. The instrument including an elongated blade member having a wing located on an edge of the blade member, and a handle.