University of Maryland Medical Center University of Maryland Medical Center

About the Physicians


Steven C. Ludwig, MD Steven C. Ludwig, MD
Associate Professor of Orthopaedics
University of Maryland School of Medicine
Chief of Spine Surgery, Department of Orthopaedics
Co-Director, University of Maryland Spine Center
University of Maryland Medical Center

Special Interests: Degenerative Diseases of the Cervical and Lumbar Spine; Spinal Tumors and Infections; Traumatic Injuries to the Cervical Spine, Sports-Related Spine Injuries; Minimally Invasive Surgical Techniques

Dr. Ludwig graduated from the University of Medicine and Dentistry of New Jersey (UMDNJ) and completed his residency in Orthopaedic Surgery at Thomas Jefferson University/Jefferson Medical College of Pennsylvania.

Following his residency, Dr. Ludwig completed further specialized training in Spine Surgery at Emory University in Atlanta, Georgia. He then became an Assistant Professor for the Department of Orthopaedics and Rehabilitation at Penn State University College of Medicine. Dr. Ludwig is board certified in orthopaedic surgery.

Dr. Ludwig has received many awards and honors including the Jefferson Orthopaedic Award for Outstanding Research, the Cervical Spine Research Society’s Award for Outstanding Research, and the American Orthopaedic Association Award for Outstanding Research. He currently serves as the editor for cervical spine in Current Opinion in Orthopaedics.

Dr. Ludwig specializes in a full range of adult spinal disorders. His clinical interests include degenerative diseases of the cervical and lumbar spine, spinal tumors, infections, traumatic injuries to the cervical spine, sports-related spine injuries, minimally invasive surgical techniques, as well as disc replacement surgeries.


Kornelis A. Poelstra, MD, PhD Kornelis A. Poelstra, MD, PhD
Assistant Professor of Orthopaedics
University of Maryland School of Medicine


Special Interests: Spine Care; Traumatic and Degenerative Arthritic Conditions; Minimally Invasive Spine Surgery; Disc Replacements; Oncologic Conditions

Dr. Poelstra came to Baltimore from Philadelphia where he completed his orthopaedic and neurosurgical spine fellowship at Thomas Jefferson University - The Rothman Institute.

Educated in the Netherlands, Dr. Poelstra received both his medical degree and a Ph.D. in biomedical engineering from the University of Groningen. He came to the United States in 1998 to complete a research fellowship in Herndon, Virginia focusing on immunoglobulins to reduce post-operative infections. This was followed by a Masters program at the University of Virginia (UVA) in "Science in Surgery." He then went on to complete a residency in orthopaedic surgery at UVA followed by the fellowship in spine surgery.

Dr. Poelstra's research interest includes the investigation of novel therapeutics to prevent and improve treatment of infections associated with surgical procedures and implants. He has published multiple basic science texts, chapters and clinical articles on this, as well as the treatment of spinal cord injuries and procedures to improve the care for patients with spinal causes of arm and leg pain.

Dr. Poelstra's clinical practice includes all areas of the spine. He treats both traumatic and degenerative/arthritic conditions using conventional surgery, minimally-invasive procedures and disc replacements.



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