摘要:
An implant which is particularly suitable for the repair and/or replacement of a skeletal joint, e.g., a vertebral joint, includes a unit of monolithic bone possessing at least one demineralized region exhibiting properties of flexibility and resilience, the demineralized region having diminished or insignificant capacity for promoting new bone growth.
摘要:
Methods of repairing a joint formed by at least two bone sections are provided wherein a biocompatible osteogenic band fabricated from an osteogenic biological material such as bone, tendon, ligament and collagen is affixed to two or more bone sections.
摘要:
A bone fastener for stabilizing bone fragments includes a single or multiple components coupleable with one another and displaceable to a locked position of the bone fastener.
摘要:
Methods of repairing a joint formed by at least two bone sections are provided wherein a biocompatible osteogenic band fabricated from an osteogenic biological material such as bone, tendon, ligament and collagen is affixed to two or more bone sections.
摘要:
A multipart intervertebral implant is provided which includes an implant portion and an implant extender portion. The implant portion and the implant extender portion can be fastened together using any known fastening means including pins, interlocking structure (e.g., dovetail, tongue and groove, etc.), adhesives, etc. The size of the implant extender portion can be selected during a surgical procedure to provide an implant suitable for a particular intervertebral receiving bed. An intervertebral implant is also provided which may be formed from a multiplicity of implant sections which are fastened together to provide an implant having a desired length. Implants having surface configurations which more closely correspond to the configuration of vertebral endplates are also provided.
摘要:
A non-destructive method for evaluating the strength of cancellous bone includes the steps of performing at least two of the following tests on each cancellous bone of a population of cancellous bones: a manual compression test, an apparent density test, and an appearance test; determining a compressive strength for each cancellous bone based on the two tests performed; comparing the determined compressive strength of each cancellous bone against a predetermined compressive strength requirement; and, eliminating a subset of cancellous bone from the population of cancellous bone, which subset of cancellous bone fails to meet the predetermined compressive strength requirement.
摘要:
Methods of repairing a joint formed by at least two bone sections are provided wherein a biocompatible osteogenic band fabricated from an osteogenic biological material such as bone, tendon, ligament and collagen is affixed to two or more bone sections.
摘要:
A cortical bone implant is formed of two or more planks of bone which are connected with one or more offset pins. The pins may be right circular cylinders inserted into a corresponding offset bore which offset bends the inserted pin. The bending creates compression and tensile loads in the pin which loads creates friction compression forces on the planks connecting them to the pins by friction. The pins may have different shapes to form the offsets and different configurations for friction attachment to the planks. The implants may be formed of flat or L-shaped planks or bones formed into other shapes including interlocking arrangements. Processes and fixtures are disclosed for forming the pins, planks and implants. Various embodiments of the pins, planks, implants and processes are disclosed.
摘要:
A cortical bone implant is formed of two or more planks of bone which are connected with one or more offset pins. The pins may be right circular cylinders inserted into a corresponding offset bore which offset bends the inserted pin. The bending creates compression and tensile loads in the pin which loads creates friction compression forces on the planks connecting them to the pins by friction. The pins may have different shapes to form the offsets and different configurations for friction attachment to the planks. The implants may be formed of flat or L-shaped planks or bones formed into other shapes including interlocking arrangements. Processes and fixtures are disclosed for forming the pins, planks and implants. Various embodiments of the pins, planks, implants and processes are disclosed.
摘要:
A surgical implant containing a resorbable radiopaque marker enables the position and/or orientation of the implant to be readily determined by x-ray or other radiographic technique following its surgical implantation in the body.