Dual portal endoscopic spine surgery offers faster, less painful recovery Flagstaff, AZ, (Feb. 27, 2025) – A spine surgeon at Northern Arizona Orthopaedics (NAO) is now offering a groundbreaking procedure that could revolutionize the way spinal stenosis surgeries are performed. Orthopedic Spine Surgeon Dr. Fady Hijji recently completed his third dual portal endoscopic spine surgery, a revolutionary procedure that targets …