摘要:
An allogeneic or xenogeneic implant for intervertebral disc replacement includes a body. The body may include one or both of a plurality of grooves or tubular apertures. The body may be formed of partially decalcified bone. The plurality of tubular apertures may be defined within the body and be positioned to allow inflow of decalcifying solutions for rapid and uniform decalcification. After partial decalcification, the body may be pliable and compressible.
摘要:
The present application relates to bioactive implants, methods of making bioactive implants, and methods of using bioactive implants to treat or repair a bone defect or a cartilage defect. In an aspect, the present application relates to compositions comprising bone microparticles in a solution, wherein the compositions harden upon desiccation into bioactive implants. In an aspect, the present application relates to compositions comprising cartilage microparticles in a solution, wherein the compositions harden upon desiccation into bioactive implants. In an aspect, disclosed herein are methods of making and using the disclosed compositions comprising bone microparticles and the disclosed composition comprising cartilage microparticles. This abstract is intended as a scanning tool for purposes of searching in the particular art and is not intended to be limiting of the present invention.
摘要:
Disclosed is a method for regenerating articular cartilage in an animal comprising administering a therapeutically effective amount of a non-demineralized particulate articular cartilage having a distribution of particle sizes within the range of from about 60 microns to about 500 microns.
摘要:
A collagen-bone composition may include bone collagen and bone particles. The collagen may be in the form of a collagen suspension and the bone particles may be demineralized bone particles retained in collagen suspension. The composition may be prepared from pressure and thermal treatment of dry demineralized bone particles contacted with an aqueous medium to produce a viscous gel-like fluid. The fluid may include the collagen extracted from the demineralized bone particles. Addition of particulate bone may be used to increase the consistency of the composition, which may convert it into a paste or putty. The paste or putty may be suitable for ejection from a syringe. The collagen-bone composition may be preserved by freeze-drying or preferably by hypothermic dehydration. On reconstitution with aqueous medium, the preserved material may resume its original shape and properties.
摘要:
A flexible, bendable organic decalcified or partially decalcified bone, cortical or cancellous, adapted for use in augmentation or repair of animal skeletal structures comprising a continuous plate or sheet of natural bone, as well as dermis is described. The thickness, flexibility and tensile strength of the construct is such as to allow it to be shaped and contoured without damage to it. The composition is ultimately remodeled by the body, thus obviating the need for additional surgical intervention. The clinical indications for the use of the invented construct are many, but are particularly prominent in dentistry, oral and maxillofacial surgery and implantology. It is particularly useful in the maxillary sinus augmentation. A unique new method, different from previously described methods for the preparation of the disclosed constructs, is described.
摘要:
Disclosed is a method for regenerating articular cartilage in an animal comprising administering a therapeutically effective amount of a non-demineralized particulate articular cartilage having a distribution of particle sizes within the range of from about 60 microns to about 500 microns.
摘要:
A method of making a bone graft composition is described wherein material including decalcified bone elongated particulate bone is dried in a constraining device or under pressure to produce a solid construct having dimensions corresponding to the constraining device or space to which the material occupied under pressure.
摘要:
A flexible, bendable organic decalcified or partially decalcified bone, cortical or cancellous, adapted for use in augmentation or repair of animal skeletal structures comprising a continuous plate or sheet of natural bone, as well as dermis is described. The thickness, flexibility and tensile strength of the construct is such as to allow it to be shaped and contoured without damage to it. The composition is ultimately remodeled by the body, thus obviating the need for additional surgical intervention. The clinical indications for the use of the invented construct are many, but are particularly prominent in dentistry, oral and maxillofacial surgery and implantology. It is particularly useful in the maxillary sinus augmentation. A unique new method, different from previously described methods for the preparation of the disclosed constructs, is described.
摘要:
Provided are procedures and instruments for preparing and transplanting osteochondral allograft plugs to a host bone to repair an articular cartilage defect. An allograft bone plug having a cartilage plate and cancellous bone tissue attached thereto is removed from a donor bone. The allograft plug is further shaped by removing or cutting away cancellous bone tissue to form a cancellous stalk extending from the cartilage plate. The formed cancellous stalk can have any suitable shape including cylindrical, conical, and rectilinear. At the recipient site of the host bone, a cutout is formed corresponding in shape to the allograft plug. The allograft plug is inserted into the cutout such that the cancellous stalk is retained in the host bone and the cartilage plate aligns with the condyle surface of the host bone. Aspects of the invention may also be applicable to preparing and transplanting osteochondral autograft plugs.
摘要:
Provided are procedures and instruments for preparing and transplanting osteochondral allograft plugs to a host bone to repair an articular cartilage defect. An allograft bone plug having a cartilage plate and cancellous bone tissue attached thereto is removed from a donor bone. The allograft plug is further shaped by removing or cutting away cancellous bone tissue to form a cancellous stalk extending from the cartilage plate. The formed cancellous stalk can have any suitable shape including cylindrical, conical, and rectilinear. At the recipient site of the host bone, a cutout is forined corresponding in shape to the allograft plug. The allograft plug is inserted into the cutout such that the cancellous stalk is retained in the host bone and the cartilage plate aligns with the condyle surface of the host bone. Aspects of the invention may also be applicable to preparing and transplanting osteochondral autograft plugs.