A scaffold comprised of a plurality of PLLA layers, which may include stem cells, for regenerating bone or tissue. The PLLA layers are separated by a plurality of hydrogel layers. The PLLA layers comprise a nanofiber mesh having a piezoelectric constant to apply an electrical charge to the bone or tissue upon application of ultrasound energy.

A bone-repair composite includes a core and a sheath. The core is a first primary unit including a combination of a first set of yarns coated with a calcium phosphate mineral layer. The first set of yarns being made from a first group of one or more polymers. The sheath is a second primary unit a combination of a second set of yarns or one or more polymer coatings. The second set of yarns being made from a second group of one or more polymers, wherein the composite is made by covering the core with the sheath, and the composite is compression molded to allow the sheath to bond to the core. The bone-repair composite has a bending modulus comparable to that of a mammalian bone, such that the ratio of the core to the sheath is provided to maximize the mechanical strength of the bone-repair composite to mimic the mammalian bone.

The invention relates to components for fusing vertebral bodies and to methods for the production and use thereof.

A spinal implant includes a first member having a wall that defines an axial cavity. A second member extends between a first end and a second end and defines a longitudinal axis. The second member is configured for disposal with the axial cavity and translation relative to the first member. A third member has an outer surface engageable with tissue and an inner surface disposed to dynamically engage the first end in response to the engagement of the outer surface with the tissue. Systems and methods are disclosed.

A central inflatable distractor and a perimeter balloon are inserted into the disc space in uninflated configurations. The central inflatable distractor is then expanded, thereby distracting the vertebral endplates to the controlled height of the central inflatable distractor. The perimeter balloon is then inflated with a curable substance. The perimeter balloon expands as it is filled with the curable substance and conforms to the void remaining in the disc space around the central inflatable distractor, thereby creating a horseshoe shape. Once the flowable material in the perimeter balloon has cured, the central inflated distractor can be deflated and removed. The remaining void (or inner space) is then packed with graft for fusion.

A hollow bone enclosure (16), of resorbable polymer, such as poly lactic or poly glycolic acid. The hollow bone enclosure comprises an inner contact portion (18), for insertion into a bone defect (not shown) and arranged to make an intimate fit with the surface of the defect, and an outer closure portion.

An engineered medical device for treatment of osteonecrosis is provided where the size, porosity and ceramic content of the device can be personalized based on an individual patient's anatomical and physiological condition. The device distinguishes different segments mimicking anatomically-relevant cortical and cancellous segments, in which the cortical segments of the device can sustain mechanical loading, and the cancellous segment of the device can promote bone ingrowth, osteogenesis and angiogenesis.

Disclosed is a synthetic block intended for filling in a bone defect. The block is made up of a part made of ceramic material which has a shape that enables same to fill in the bone defect, and which is capable of being stabilized once placed in the bone defect, a three-dimensional network of channels communicating with one another being formed at least partially in the part such as to allow through the fluids and cells that enable revascularization with a view to cell growth once the part is in place in the bone defect, the channels opening onto each surface of the bone defect in contact with the part once it is placed in the bone defect.

Adult autologous stem cells cultured on a porous, three-dimensional tissue scaffold-implant for bone regeneration by the use of a hyaluronan and/or dexamethasone to accelerate bone healing alone or in combination with recombinant growth factors or transfected osteogenic genes. The scaffold-implant may be machined into a custom-shaped three-dimensional cell culture system for support of cell growth, reservoir for peptides, recombinant growth factors, cytokines and antineoplastic drugs in the presence of a hyaluronan and/or dexamethasone alone or in combination with growth factors or transfected osteogenic genes, to be assembled ex vivo in a tissue incubator for implantation into bone tissue.

Provided is an implantable composite which includes a plurality of resorbable ceramic particles with or without a biodegradable polymer. The resorbable ceramic particles can be granules including carbonated hydroxyapatite and tricalcium phosphate in a ratio of 5:95 to 70:30. Some resorbable ceramic particles are granules, which include carbonated hydroxyapatite and β tricalcium phosphate in a ratio of 5:95 to 70:30. The resorbable ceramic particles have a particle size from about 0.4 to about 3.5 mm. The implantable composite is configured to tit at or near a bone defect as an autograft extender to promote bone growth. Methods of using the implantable composite are also provided.