Nicholas A. Grimaldi, DO - Nicholas Grimaldi DO, Orthopaedic and Spine Specialist, Spinal Surgery, Scoliosis, Sports Medicine. East Tennessee Spine & Orthopaedic Specialists treats a full range of spine and orthopaedic problems, and our board-certified orthopaedic surgeons keep current on the newest advances in orthopaedic care including computer-assisted surgery and minimally invasive procedures. We are committed to making your treatment as easy on you as possible. Most of the services you will need are handled on-site, with access to the most sophisticated technology to provide you with the best care available.