Orthopedic oncology is a specialized field of medicine focused on the treatment of tumors and cancers that affect the bones, joints, cartilage, fibrous tissues, muscles, nervous tissues, soft tissues, and vessels. Orthopedic oncologists are specialized orthopedic surgeons that treat bone and soft-tissue tumors, bone sarcomas, soft tissue sarcomas, benign bone tumors and benign soft tissue tumors as well as metastatic cancers to bone and pathological fractures. Orthopedic oncologists are highly specialized in performing complex limb spring surgeries for sarcomas and saving limbs and lives as opposed to performing amputations. Specialized fellowships and training are required. Dr. Wittig is one of the few orthopedic oncologists in the country to perform a two year clinical fellowship gaining extra experience with separating large tumors from blood vessels and nerves, major rare resections as well as special plastic surgical techniques. Dr. Wittig has been named one of the top 13 orthopedic oncologists in the United States by his peers. He has also been featured in New York Magazine and Castle Connolly as one of the Top Doctors in the New York Metro area and one of Top Cancer Doctors.