摘要:
A spinous process implant with two plates that are connected together with a post. The implant is configured for each plate to be positioned on outer lateral sides of spinous processes with the post extending through the interspinous space. One or both plates may be movable along the length of the post to accommodate different anatomies such as for relatively wide or thin spinous processes. The post includes an enlarged head at a first end to prevent the first plate from disassociating from the post in a first direction. The post also includes a boss at a second end to prevent the second plate from disassociating from the post in a second direction. Methods of attaching the implants to the spinous processes are also disclosed.
摘要:
Spinous process implants that may include a first plate sized to extend along a first lateral side of the spinous processes and a second plate sized to extend along a second lateral side of the spinous processes. The second plate may include a bore that extends through the second plate. An elongated post may extend through the bore with a first end attached to the first plate and a second end positioned outward beyond the outer surface of the second plate away from the first plate. A joint may be positioned along the post that attaches a first section of the post to a second section of the post. The joint may be constructed to align the first and second sections in a collinear orientation and to remove the second section from the first section. Additional joints may also be positioned along the post. The bore may be sized relative to the post for the second plate to be movable along a length of the post.
摘要:
A spinous process implant with two plates that are connected together with a post. The implant is configured for each plate to be positioned on outer lateral sides of spinous processes with the post extending through the interspinous space. One or both plates may be movable along the length of the post to accommodate different anatomies such as for relatively wide or thin spinous processes. The post includes an enlarged head at a first end to prevent the first plate from disassociating from the post in a first direction. The post also includes a boss at a second end to prevent the second plate from disassociating from the post in a second direction. Methods of attaching the implants to the spinous processes are also disclosed.
摘要:
A vertebral construct includes a first fastening element having a first portion and a second portion configured for engagement with tissue. A rod defines an elongated cavity configured to facilitate dynamic translation of the first portion therein relative to the rod. A second fastening element has a first portion fixedly connected to the rod. Methods of use are disclosed.
摘要:
An apparatus for monitoring the characteristics of tissue adjacent a surgical site and communicating that information to a health care provider includes a retractor, a sensor, and a processing system. The sensor is disposed on the retractor and is configured to measure a parameter indicative of at least one characteristic of the tissue adjacent the first or the second blade. The processing system is in communication with the sensor and configured and arranged to receive information from the sensor indicative of the measured parameter. It includes a threshold stored therein indicative of excessive trauma to the tissue and it is configured in a manner such that it compares the received information to the stored threshold and communicates information to the health care provider regarding the comparison.
摘要:
Medical devices for the treatment of spinal conditions are described herein. Such a medical device may include a pair of plates with spikes adapted to be embedded in a superior spinous process and an adjacent inferior spinous process. The device may also allow relative motion between adjacent spinous processes.
摘要:
Various embodiments of a vertebral tension band assembly and associated connection structure are provided. The tension band assemblies may be attached to vertebral bodies to, for example, connect one vertebrae to another, retain the band in approximately a preferred position by application of tension to the band during insertion and/or limit, impede, inhibit, reduce or interfere with the separation from one vertebra to another and may further block, impede, interfere with, inhibit, reduce or present an obstacle to dislodgement of a spinal implant from between the vertebrae to which it is attached. Flexible band portions of the assemblies may be treated and/or configured to promote bony integration between the band and the associated vertebrae, limit tissue adhesion to the band, and/or to elute a therapeutic substance from the installed band to the surgical site.
摘要:
Embodiments of the invention include instruments, implants, and methods for surgically treating facet joints of vertebrae. An instrument may be advanced into one or more facet joints to one or both separate vertebrae and remove tissue from one or more articular processes. A stop on the instrument may be used to terminate advancement of the instrument by contacting a vertebra, and one or more implants may be placed into one or more facet joints.
摘要:
Embodiments of the invention include instruments, implants, and methods for surgically treating facet joints of vertebrae. An instrument may be advanced into one or more facet joints to one or both separate vertebrae and remove tissue from one or more articular processes. A stop on the instrument may be used to terminate advancement of the instrument by contacting a vertebra, and one or more implants may be placed into one or more facet joints.
摘要:
An intervertebral disc space preparation guide comprises a spacer portion having a first recess and a first machining guide comprising a first bore. The first bore and the first recess are aligned and adapted to receive a first bone removal mechanism.