摘要:
A spinal implant comprising: a substantially D-shaped body having an upper surface, a lower surface, an anterior portion, a posterior portion, curved sidewalls and a central opening extending between the upper and lower surfaces; and one or more apertures within the anterior portion of the body for receiving a fixation element, the one or more apertures comprising a first aperture centrally located on the anterior portion and two apertures laterally located on the anterior portion; wherein at least one of the apertures is configured to permit a predetermined amount of nutation by the fixation elements; and the body defines a generally wedge shaped structure suitable for a midline insertion approach.
摘要:
The embodiments provide a spinal implant that is configured for midline insertion into a patient's intervertebral disc space. The spinal implant may include structural guidance features to facilitate the angular approach of fixation elements into the apertures. The spinal implant may also be a configured with a tactile or visual feedback response feature to allow the user to know when the fixation elements are fully seated within the apertures.
摘要:
The embodiments provide a spinal implant that is configured for midline insertion into a patient's intervertebral disc space. The spinal implant may include structural guidance features to facilitate the angular approach of fixation elements into the apertures. The spinal implant may also be a configured with a tactile or visual feedback response feature to allow the user to know when the fixation elements are fully seated within the apertures.
摘要:
The embodiments of the present disclosure relate to a spinal implant assembly having features to prevent or minimize fixation elements, such as screws, from being dislodged, or from backing out over time and with use. The spinal implant assembly may comprise an implantable body (10) having first apertures (24) for receiving fixation elements (40). A plate (60) configured to nest against the posterior portion (14) of the implantable body and comprising one or more second apertures can be provided. These second apertures permit access to the head portions (42) of the fixation elements. One or more locking elements (50) are then passed through the second apertures and engage the head portions (42) of the fixation elements. In addition, the plate (60) may comprise an adjustable arm to allow the plate to be used with implantable bodies of different size.
摘要:
Spinal implants that are configured for a minimally invasive approach to a patient's intervertebral disc space, optimized to avoid blood vessels and nervous tissue, maximizing endplate coverage and promoting sagittal balance, are provided. Insertion and fixation can be accomplished through a narrow access window, thereby allowing better access to more spinal levels while being less invasive than other approaches. The spinal implants may facilitate fusion, and include visualization features to assist in the implantation and verify proper placement and vary segmental angle of lordosis. Methods of implanting the spinal implants to treat a patient's spine are also disclosed.
摘要:
A spinal implant comprising: a substantially D-shaped body having an upper surface, a lower surface, an anterior portion, a posterior portion, curved sidewalls and a central opening extending between the upper and lower surfaces; and one or more apertures within the anterior portion of the body for receiving a fixation element, the one or more apertures comprising a first aperture centrally located on the anterior portion and two apertures laterally located on the anterior portion; wherein at least one of the apertures is configured to permit a predetermined amount of nutation by the fixation elements; and the body defines a generally wedge shaped structure suitable for a midline insertion approach.
摘要:
The embodiments provide a spinal implant that is configured for lateral insertion into a patient's intervertebral disc space. The spinal implant may have a body having a tapered anterior portion and one or more apertures. The tapered anterior portion allows for concomitant distraction of soft tissue during insertion of the implant. In addition, at least some of the apertures are designed to permit a predetermined amount of nutation by a fixation element. The fixations elements that allow nutation enable the fixation element to toggle from one position to another, for example, during subsidence of the implant in situ.
摘要:
A spinal implant comprising: a substantially D-shaped body having an upper surface, a lower surface, an anterior portion, a posterior portion, curved sidewalls and a central opening extending between the upper and lower surfaces; and one or more apertures within the anterior portion of the body for receiving a fixation element, the one or more apertures comprising a first aperture centrally located on the anterior portion and two apertures laterally located on the anterior portion; wherein at least one of the apertures is configured to permit a predetermined amount of nutation by the fixation elements; and the body defines a generally wedge shaped structure suitable for a midline insertion approach.
摘要:
A spinal implant comprising: a substantially D-shaped body having an upper surface, a lower surface, an anterior portion, a posterior portion, curved sidewalls and a central opening extending between the upper and lower surfaces; and one or more apertures within the anterior portion of the body for receiving a fixation element, the one or more apertures comprising a first aperture centrally located on the anterior portion and two apertures laterally located on the anterior portion; wherein at least one of the apertures is configured to permit a predetermined amount of nutation by the fixation elements; and the body defines a generally wedge shaped structure suitable for a midline insertion approach.