Spine Leaders

Robert Funk, MD, is an orthopedic spine surgeon at Indiana Spine Group in Indianapolis.

Dennis Charles Crawford, MD, is an orthopedic spine surgeon at Oregon Health and Science University, in Portland, Ore.

Dante Leven, DO, is an orthopedic spine surgeon at Total Orthopedic and Sports Medicine of Long Island, N.Y.

James Adametz, MD, is a board-certified neurosurgeon at the University of Arkansas Surgical Hospital.

Sakthivel Rajan Rajaram Manoharan, MD, is an assistant professor of orthopedic surgery and attending physician at the University of Alabama-Birmingham Medical Center.

Erica Bisson, MD, is a neurosurgeon for University of Utah Health Care, an associate professor of neurosurgery, the medical director of the Clinical Neuroscience Center Neurosurgery Clinic and an adjunct associate professor of orthopedics, in Salt Lake City.

Amgad S Hanna, MD, is a neurosurgeon for UW Health and an associate professor of neurosurgery for the University of Wisconsin Department of Neurological Surgery, both in Madison.

Stephen Kalhorn, MD, is a spine surgeon and an associate professor of neurosurgery who works for the Medical University of South Carolina-Health East Cooper Campus in Mount Pleasant.

Thomas Kleeman, MD, is a fellowship-trained orthopedic spine surgeon who works for the New Hampshire NeuroSpine Institute of Bedford, N.H.

Alexander Robertson, MD, is a fellowship-trained orthopedic spine surgeon who works for University Orthopedics in Providence, R.I.