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Expandable implant for partial disc replacement and reinforcement of a disc partially removed in a discectomy and for reduction and maintenance of alignment of cancellous bone fractures and methods and apparatuses for same
Expandable implant for partial disc replacement and reinforcement of a disc partially removed in a discectomy and for reduction and maintenance of alignment of cancellous bone fractures and methods and apparatuses for same
Expandable implants for intervertebral disc repair, and methods and apparatuses for delivering the same into the disc. The present implants can also be used for repair of bone fractures. The implants generally comprise a compressed form having a size adapted for insertion into a defect in the intervertebral disc, and a composition that allows the implant to expand from the compressed form into an expanded form after the implant is inserted into the defect. The expanded form of the implant has a configuration that fills the defect in the disc. The defect in the disc can be an annular defect that resulted from repair of a herniation of the disc, or a nucleus that needs to be repaired. The composition used to make the implant can comprise a shape memory alloy (SMA) or any other suitable material.
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