A C-shaped or ring shaped implant formed of cortical bone has its C-shaped or inner channel filled with a bone promoting material which is preferably demineralized bone fibers formed as a flexible wet sheet or may be cancellous bone, pressed bone fibers formed from demineralized cortical bone chips soaked...http://www.google.es/patents/US6706067?utm_source=gb-gplus-sharePatente US6706067 - Spinal intervertebral implant and method of making
Spinal intervertebral implant and method of making
