An electrosurgical Cobb elevator instrument, a soft tissue dissection andor retraction tool, can be used with and without suction, and is capable of delivering monopolar or bipolar RF energy for cutting and coagulating soft tissue. The anchor marker has an anchor element and a marker element which is secured to the anchor element. A custom adapter device mechanically and electrically receives the PDA components and enables a mechanical and electrical connection from the PDA components to the vehicle.