摘要:
Orthopedic implants are adapted to replace the function of a natural disc of the spine. In an embodiment, the implant can be placed across the disc space through a trans-pedicular corridor using a substantially posterior surgical approach. In another embodiment, an implant can be placed across the disc space at a different level through a substantially lateral or anterior approach.
摘要:
Multiple implants and methods for the minimally invasive treatment of spinal stenosis are disclosed. A spinal implant device includes a spacer region and an attachment region. The spacer region is adapted to be positioned between first and second spinous processes of first and second vertebral bodies to limit movement of the first spinous process and the second spinous process toward one another. The attachment region attaches to the first spinous process via a fastener that extends substantially along a long axis of the spinous process.
摘要:
A barrier is placed across a portion of or across the totality of a spinal implant. The barrier can serve a variety of purposed, including, for example: (1) to keep tissue away from the implant and minimize or eliminate the likelihood of tissue adhesion with the spine or implant; (2) to decrease or eliminate the likelihood of tissue growth, migration, invasion and/or interaction with the implant; (3) to decrease or eliminate the likelihood of the dissemination of implant wear debris and particles away from the implant and into body cavities; and (4) to decrease or eliminate the likelihood of calcification, ossification, and/or bone formation adjacent to the implant.
摘要:
Orthopedic implants are adapted to replace the function of a natural disc of the spine. In an embodiment, the implant can be placed across the disc space through a trans-pedicular corridor using a substantially posterior surgical approach. In another embodiment, an implant can be placed across the disc space at a different level through a substantially lateral or anterior approach.
摘要:
A bone plate system is adapted to be attached to bone. The system includes a base plate having at least one aperture for location adjacent to a bone member and a bone screw sized to be inserted through the aperture such that the bone screw sits within a seat of the aperture for engaging the bone member. A retainer member is adapted to transition between a deployed state wherein the retainer member at least partially blocks the aperture for retaining the bone screw in the seat, and an undeployed state wherein the bone screw permits the bone screw to be inserted into the aperture. The retainer member automatically transitions to the undeployed state as the bone screw is inserted into the aperture and automatically transitions to the deployed state once the bone screw is seated within the seat.