A vertebral implant has a body extending along a body axis, having a pair of ends, and adapted to be fitted with its ends axially juxtaposed with respective confronting vertebral faces. An inner ring can pivot on one of the ends of the body about a first axis extending transversely of the body axis through the body, and an outer ring can pivot on the inner ring about a second axis extending nonparallel to the first axis transversely of the body axis through the inner ring and body. The outer ring has an end face adapted to engage the respective vertebral face.
