An in-situ formed spinal implant is provided, including an elongate strip having a proximal end and an opposite distal end, the strip having a plurality of spaced teeth disposed along edges of the strip. The strip has a generally arcuate or concave cross-section and is configured for being coiled into a spiral from the proximate end to the distal end for placement between adjacent spinal vertebrae, such that upon formation of the coiled shape, the teeth on a first edge engage one of the vertebrae, and teeth of an opposite, second edge engage the other of the vertebrae.
