An implant for correcting an abnormally curved bone, such as a spinal column, having a concave side and a convex side, the implant being suitably a staple having a central portion and a pair of legs with a first memorized shape and a second deformed shape and being implantable, in the second shape, at the convex side of the spinal column in a manner that the legs extend close to the concave side, such that the legs exert a distraction force at the concave side of the spinal column.
