Abstract: A vertebral disc prosthesis, a method of implanting a prosthesis and a deployment device is provided. The prosthesis may be implanted into the interior region of the vertebral disc so as to displace existing vertebral tissue, such as NP. The size or amount of the prosthesis inserted into the interior region of the vertebral disc may be a characteristic of the disc or the prosthesis. For example, the amount or size of prosthesis inserted into the disc may be dependent upon restoring the functionality of the disc (e.g., the ability of the disc to transfer nutrients or otherwise survive, the ability of the disc to carry the required loads and absorb stress or the reduction of pain). The method may include monitoring at least one of: a) one or more characteristics of the vertebral disc, and b) one or more characteristics of the prosthesis.

Abstract: A vertebral disc prosthesis, a method of implanting a prosthesis and a deployment device is provided. The prosthesis may be implanted into the interior region of the vertebral disc so as to displace existing vertebral tissue, such as NP. The size or amount of the prosthesis inserted into the interior region of the vertebral disc may be a characteristic of the disc or the prosthesis. For example, the amount or size of prosthesis inserted into the disc may be dependent upon restoring the functionality of the disc (e.g., the ability of the disc to transfer nutrients or otherwise survive, the ability of the disc to carry the required loads and absorb stress or the reduction of pain). Restoring disc function may be determined by the resulting disc height desired, the resulting disc pressure desired or the resulting disc volume desired. The prosthesis may be sized or positioned within the interior of the vertebral disc such that it is spaced from at least one of the end plates of the vertebral disc.

Abstract: A bone fixation device includes one or more springs and one or more spacers disposed between two orthopedic structures. The orthopedic structures may comprise screws, rods, plates, or any other orthopedic devices configured to engage bone. The spacer may be absorbable or removable, and may serve to constrain the spring in a compressed or stretched state so that, upon absorption or removal of the spacer, the spring may apply tension or compression to surrounding bone. The device may thereby facilitate healing or bone or remodeling of soft tissues.

Abstract: A wrist arthroplasty system comprising a carpal implant for resurfacing carpal bones that is at least substantially arcuate in shape from a first end to a second end. The carpal implant includes a first carpal engaging surface, a second carpal engaging surface, a first carpal articulating surface, and a second carpal articulating surface. The first carpal engaging surface has an arcuate concave shape that at least substantially corresponds to a natural shape of a scaphoid bone. The second carpal engaging surface at least substantially corresponds to a natural shape of a lunate bone. The first carpal articulating surface is opposite to the first carpal engaging surface. The first carpal articulating surface has an arcuate convex shape. The second carpal articulating surface is opposite to the second carpal engaging surface.

Abstract: Systems and methods for bone fixation are disclosed. A fixation system can have a planar fixation device and a laterally-fixed fixation apparatus. The planar fixation device can have a planar surface and at least one opening having side walls defining an at least generally cylindrical shape. The laterally-fixed fixation apparatus can have an at least generally cylindrical shaped head portion having outer wall sections at least partially surrounding a central hollow area. The head portion can have an inner bottom surface. An expander hub is provided in the fixation apparatus for positioning at least partially within the central hollow area of the head portion and can be seated at least partially on the inner bottom surface of the head portion. The expander hub is rotatable to force the outer wall sections of the head portion outwardly for engaging and locking the fixation apparatus in place in the opening.

Abstract: Resorbable medical implants and related methods are disclosed for placement against bone and/or for filling a void such as a void between bones. The resorbable medical implants can be structured and configured as desired, for example, to conform to surfaces of adjacent bones and/or to conform to a desired bone shape for replacement otherwise. Short-term fixation of the resorbable medical implants can advantageously assist in promoting and allowing growth of new bone tissue into the implant as the implant gradually resorbs. The implant can comprise a material that is porous with microscopic and non-microscopic pores. In one aspect, the resorbable implant can be shaped and used as a trapezium bone replacement.

Abstract: A vertebral disc prosthesis, a method of implanting a prosthesis and a deployment device is provided. The prosthesis may be implanted into the interior region of the vertebral disc so as to displace existing vertebral tissue, such as NP. The size or amount of the prosthesis inserted into the interior region of the vertebral disc may be a characteristic of the disc or the prosthesis. For example, the amount or size of prosthesis inserted into the disc may be dependent upon restoring the functionality of the disc (e.g., the ability of the disc to transfer nutrients or otherwise survive, the ability of the disc to carry the required loads and absorb stress or the reduction of pain). Restoring disc function may be determined by the resulting disc height desired, the resulting disc pressure desired or the resulting disc volume desired. The prosthesis may be sized or positioned within the interior of the vertebral disc such that it is spaced from at least one of the end plates of the vertebral disc.

Abstract: A vertebral disc prosthesis, a method of implanting a prosthesis and a deployment device is provided. The prosthesis may be implanted into the interior region of the vertebral disc so as to displace existing vertebral tissue, such as NP. The size or amount of the prosthesis inserted into the interior region of the vertebral disc may be a characteristic of the disc or the prosthesis. For example, the amount or size of prosthesis inserted into the disc may be dependent upon restoring the functionality of the disc (e.g., the ability of the disc to transfer nutrients or otherwise survive, the ability of the disc to carry the required loads and absorb stress or the reduction of pain). Restoring disc function may be determined by the resulting disc height desired, the resulting disc pressure desired or the resulting disc volume desired. The prosthesis may be sized or positioned within the interior of the vertebral disc such that it is spaced from at least one of the end plates of the vertebral disc.

Abstract: A vertebral disc prosthesis, a method of implanting a prosthesis and a deployment device is provided. The prosthesis may be implanted into the interior region of the vertebral disc so as to displace existing vertebral tissue, such as NP. The size or amount of the prosthesis inserted into the interior region of the vertebral disc may be a characteristic of the disc or the prosthesis. For example, the amount or size of prosthesis inserted into the disc may be dependent upon restoring the functionality of the disc (e.g., the ability of the disc to transfer nutrients or otherwise survive, the ability of the disc to carry the required loads and absorb stress or the reduction of pain). Restoring disc function may be determined by the resulting disc height desired, the resulting disc pressure desired or the resulting disc volume desired. The prosthesis may be sized or positioned within the interior of the vertebral disc such that it is spaced from at least one of the end plates of the vertebral disc.

Abstract: A vertebral disc prosthesis, a method of implanting a prosthesis and a deployment device is provided. The prosthesis may be implanted into the interior region of the vertebral disc so as to displace existing vertebral tissue, such as NP. The size or amount of the prosthesis inserted into the interior region of the vertebral disc may be a characteristic of the disc or the prosthesis. For example, the amount or size of prosthesis inserted into the disc may be dependent upon restoring the functionality of the disc (e.g., the ability of the disc to transfer nutrients or otherwise survive, the ability of the disc to carry the required loads and absorb stress or the reduction of pain). Restoring disc function may be determined by the resulting disc height desired, the resulting disc pressure desired or the resulting disc volume desired. The prosthesis may be sized or positioned within the interior of the vertebral disc such that it is spaced from at least one of the end plates of the vertebral disc.

Abstract: A vertebral disc prosthesis, a method of implanting a prosthesis and a deployment device is provided. The prosthesis may be implanted into the interior region of the vertebral disc so as to displace existing vertebral tissue, such as NP. The size or amount of the prosthesis inserted into the interior region of the vertebral disc may be a characteristic of the disc or the prosthesis. For example, the amount or size of prosthesis inserted into the disc may be dependent upon restoring the functionality of the disc (e.g., the ability of the disc to transfer nutrients or otherwise survive, the ability of the disc to carry the required loads and absorb stress or the reduction of pain). Restoring disc function may be determined by the resulting disc height desired, the resulting disc pressure desired or the resulting disc volume desired. The prosthesis may be sized or positioned within the interior of the vertebral disc such that it is spaced from at least one of the end plates of the vertebral disc.