A fiber-based surgical implant stabilized against fraying, includes a thermally crimped flat-knitted fabric of a biocompatible, optionally biodegradable, polymer material having a glass transition temperature or other thermally induced secondary conformational mobility threshold in the temperature range of from 20? C. to +170? C. Also disclosed is a corresponding fabric and methods of producing the implant and the fabric.

A surgical implant with recesses adapted to capture fixation medium that extravazates during implantation. The implant includes an elongated stem having a distal tip configured for insertion into an implant receiving area of a patient. A collar designed to house recesses for capturing extravazating fixation medium is attached on the stem. The collar can be fixed to the stem by a separable collar-engagement feature or the collar can be fixed to the stem via structures on the stem.

A distractor includes a first plate and a second plate. The first plate includes an outer surface having a surface irregularity provided thereon and an inner surface having a protrusion provided thereon. The second plate includes an outer surface having a surface irregularity provided thereon and an inner surface having a recess provided thereon. The protrusion engages with the recess in a ball and socket configuration that permits relative movement of the first and second plates.

The present disclosure relates to a spinal fusion impactor tool that includes an attachment means for securing an implant device to the distal end of the tool, a means for adjusting the angle of the distal head relative to the handle to better position the implant for introduction into the implant site, means for remotely releasing the implant device at the distal end and a clamp device on the shaft of the tool to secure tabs, attachments and other devices. The impactor tool is preferably used in conjunction with implantation of an intervertebral fusion cage that is equipped with shims having tabs or other removing means, but may also be used to introduce, for example, an implant, graft, fusion device, wedge or distractor device into any joint space or bony region in preparation for implantation.

A system for spinal surgery includes a prosthesis comprising a plurality of bone anchors which engage an intervertebral construct for fusion or motion preservation. The fusion construct comprises a spacer optionally encircled by a jacket. The motion preservation construct may comprise an articulating disc assembly or an elastomeric disc assembly. Any of the constructs may occupy the intervertebral disc space between adjacent vertebrae after removal of an intervertebral disc. The anchors slidingly engage the construct to securely fix the prosthesis to the vertebrae. The anchors and jacket of the fusion construct provide a continuous load path across opposite sides of the prosthesis so as to resist antagonistic motions of the spine.

A device for treatment of spondylotic disease includes a distractor for distracting vertebral facets of first and second vertebrae located adjacent each other. The distractor includes a first abutment surface for interfacing with an inferior articular facet of the first vertebra. The distractor also includes a second abutment surface for interfacing with the superior articular facet of the second vertebra corresponding to the inferior articular facet of the first vertebra. The first and second abutment surfaces of the distractor engage with each other and are separated by a predetermined distance.

A method and apparatus for replacing a selected portion of the anatomy is described. In particular, a prosthesis can be provided to replace a portion of an articulating joint, such as an elbow. The apparatus can be modular for various reasons and each of the modular portions can include a different dimension to achieve a selected result. For example, the prosthesis can achieve a different size condylar replacement, a selected offset, a selected articulation, or combinations thereof.

An implant may include a body having a first portion and a second portion and a structural member having a central member curve. In addition, the structural member may be exposed on an outer surface of the implant. Further, the central member curve may include a winding segment, and the winding segment of the central member curve may wind around a fixed path extending from the first portion of the body to the second portion of the body. Also, the central member curve may make one or more full turns around the fixed path. And, the structural member may have a member diameter at the winding segment, wherein the winding segment has a winding diameter corresponding with the full turn around the fixed path and the member diameter is greater than the winding diameter.

An expandable implant includes an upper main support of bone, a lower main support coupled to the upper main support, the lower main support comprising a first coupling feature and a second coupling feature being substantially parallel to the first coupling feature, and a control assembly configured to control relative movement between the upper main support and the lower main support, the control assembly including a first control member configured to engage the upper main support and the lower main support and interface with the first coupling feature a second control member configured to engage the upper main support and the lower main support and interface with the second coupling feature, and a control shaft configured to be received by the first control member and the second control member, wherein manipulation of the control shaft causes relative movement between the upper main support and the lower main support.

The invention relates to an assembled vertebral body used in a cervical reconstruction operation, comprising: an upper connecting element, an artificial vertebral body element and a lower connecting element, wherein the upper connecting element is disposed at an upper part of the artificial vertebral body element, the lower connecting element is disposed at an lower part of the artificial vertebral body element, and wherein the artificial vertebral body element is assembled with the upper connecting element and the lower connecting element, respectively. The invention has the advantages that the artificial vertebral body element is customized in accordance with the characteristics of patients and printed in 3D, and the length of the artificial vertebral body element can be precisely adjusted to adapt to the patient. Since the lower connecting element is standard part, the upper connecting element is standard part or non-standard part, and the artificial vertebral body element is non-standard part, in comparison to the traditional 3D printing which needs to be printed integrally, the adjustable assembled artificial vertebral body can reduce 3D printing materials and reduce the cost of 3D printing, thus reducing medical costs for the patient. The shape of the nested parts of the elements is a non-circular shape, which can resist rotation, so that no relative movement occurs among the three elements of the artificial vertebral body.