Anterior and posterior, cervical, thoracic, and lumbosacral instrumented spinal fusion operations are examples of complex spine surgery that we perform on a regular basis. Spinal fusion operations are procedures of choice for a carefully selected sub-group of patients who have progressive and medically intractable back pain. Spinal fusion and instrumentation operations are often effective treatment modalities for spinal instability caused by degenerative processes, spinal infections, tumors and severe trauma to the spine. We have extensive experience and training in complex spinal fusion and instrumentation and treat a large number of patients with these forms of spinal disorders.