[Atypical pain syndrome after amputation of the lower limb].

A very unusual case if described of ischialgia coexistent with phantom pains in the amputated extremity. The cause of pain was prolapse of a lumbar intervertebral disc diagnosed only during operation. The case points out the necessity of differentiating between postamputation pains and pains not directly related to amputation. This differentiation may help in successful treatment.