The United States has filed a complaint against Sioux Falls, South Dakota, neurosurgeon Wilson Asfora M.D., Medical Designs LLC, and Sicage LLC alleging False Claims Act violations arising from the alleged payment of kickbacks to Asfora tied to the devices he used in spinal surgeries, the Justice Department announced today. Medical Designs and Sicage are medical device distributorships in South Dakota owned and operated by Asfora.