After graduating from Canisius College in Berlin, Dr. Volker studied at the Free University in Berlin. He studied abroad at the Surgical Clinic in Prague / Czech Republic and at the Mount Sinai School in New York, USA. He worked in orthopedics at the Oskar-Helene-Heim with Prof. Dr. U. Weber. In 1991, Volker began surgical training with Prof. H.-D. Clevert at the DRK Hospitals in Berlin, the academic teaching hospital of the Charité Berlin. The training included extensive abdominal surgery, vascular surgery, lung surgery, trauma surgery and sports medicine. In 1998, Dr. Volker acquired the specialist term for surgery. The PhD at the Charité Berlin responded to the change in the Gallenwegschirurgie. Later, he obtained the additional qualification in sports medicine.

As a surgical physician Dr. Volker gathered great experience in the tissue-endoscopic and minimally invasive surgical technique. Since 2003, intensified cooperation with Prof. M. Faensen, director of the Center for hip resurfacing in the DRK Clinics Berlin. Increasingly, the trauma surgery was at the center of the surgical work up to Dr. Volker is exclusively devoted to modern hip surgery.
In November 2008 Dr. Volker promoted hip resurfacing as a premiere new hip replacement trend, in which only a portion of the diseased femoral head is replaced.