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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 repair of a defect in an intervertebral disc or in a cancellous bone fracture, and methods and apparatuses for delivering the same into the defect. The implants generally comprise a compressed form having a size adapted for insertion into the defect, 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. The composition used to make the implant can include a shape memory alloy (SMA), Elasthane polyetherurethane, or any other suitable material. Further, multiple implants can be used to repair a single defect. The implants can be inserted into the defect by various types of insertion devices, including a needle that provides for percutaneous delivery.
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