摘要:
A spinal implant for positioning in a space formed between vertebral members. The implant includes a number of sections that are pivotally attached together at pivot axes. The pivot axes include connectors that extend through at least a portion of the sections and are configured for the sections to be pivotally attached for the implant to be flexible to facilitate insertion into the space and to be configurable to the space. One of the sections may include a receptacle that is contained within the section. The receptacle has a fixed size and shape that holds bone growth material. The fixed size and shape of the receptacle prevents the bone growth from escaping during flexing of the implant.
摘要:
An adjustable connector including first and second connector members rotationally coupled together and configured to receive first and second spinal rods, respectively. In one embodiment, the first connector member includes an elongated slot that receives the first rod and has a length extending along an axis arranged transverse to the rotational axis, and the second connector member includes a second passage that receives the second rod. A lock member is positioned between the connector members and includes an angled rod bearing surface extending along a plane oriented at an oblique angle relative to the rotational axis. A compression member extends into the first passage of the first connector member and into compressed engagement with the first rod to displace the first rod along the length of the elongated slot and into sliding engagement with the angled rod bearing surface, which in turn axially displaces the lock member toward the second connector member to compress the first interface surface of the lock member against an opposing second interface surface to selectively prevent relative rotation between the connector members.
摘要:
A flexible spinal implant for insertion into an intervertebral disc space for sagittal and/or coronal intervertebral stabilization is provided comprising a flexible implant which enables bending of the flexible implant to facilitate insertion of the flexible spinal implant into the disc space via a spinal surgical procedure. The flexible spinal implant comprises a leading end, a trailing end flexibly connected to the leading end, a locking mechanism, wherein the implant is deformable at or about a flexible section to thereby permit a substantially straight entry of the implant into the disc space, and delivered to the selected disc space at a desired insertion angle of approach via a spinal surgical procedure. The implant can have a leading end comprising a curved or bullet shaped configuration, and the flexible section may be comprised of a flexible material or flexible sections which may be lockingly engaged.
摘要:
A side-loading bone anchor is provided, which may be used in cervical, thoracic, lumbar or sacral areas of the spine or other orthopedic locations. In one embodiment, the anchor includes an anchoring portion, a receiving portion, and an internal piece that is rotatable with respect to the receiving portion at least to a degree. The anchoring portion is attached to a bone. A rod or other elongated support member is received in the receiving portion in contact with the internal piece. The rod and internal piece may be rotated for variability substantially in a plane, and a set screw is threaded into the receiving portion to lock the rod within the receiving portion.
摘要:
A spinal stabilization apparatus and method according to which a fastener is engaged with a vertebra of a spinal system. The fastener is connected to a rod and the direction of extension of at least a portion of the rod in a coronal plane may be selectively adjusted.