A hemipelvectomy is a high level pelvic amputation. Along with hip disarticulations, hemipelvectomies are the rarest of lower extremity amputations. In some cases, an internal hemipelvectomy can be performed, which is a limb-sparing procedure. A complete hemipelvectomy, however, is the amputation of half of the pelvis and the leg on that side. This type of procedure is also called transpelvic amputation.