 Percutaneous osseointegrated prosthetic POP attachment i.e., the direct skeletal attachment of artificial limbs is a rapidly evolving technology. This follows over a decade of successful European trials that largely involved transfemoral amputees. This information together with the translational animal studies have made it possible to commence an Early Feasibility Device Exemption IDE Pilot Program under the direction of the FDA. Ten transfemoral amputees, selected from the Veteran and active military populations will receive a novel POP device. The objective of this study is to follow 10 patients implanted with a POP for a period of one year. 