Steven Mardjetko, MD, FAAP is a graduate of the University of Illinois College of Medicine, and stayed for his residency training in orthopaedic surgery at the University of Illinois Medical Center.  He received expert specialty training by completing two postgraduate fellowships at Rush University, one in pediatric orthopaedics and the other in spinal deformity and reconstruction.  He is board certified in orthopaedic surgery and pediatric orthopaedics.

Dr. Mardjetko has several academic appointments, and is a fellow in the American Academy of Pediatrics and the Scoliosis Research Society, where he has served on its board of directors.  He is an active lecturer at many professional meetings and conferences, where he teaches the latest surgical techniques to spine surgeons world-wide.

His areas of expertise include:

  •         Scoliosis and other spinal disorders/deformities/congenital
  •         Spinal cord injuries/trauma/tumor
  •         Neuromuscular disorders 
  •         Down Syndrome
  •         General pediatric orthopaedics and fracture care
  •         Complex Cervical Spine disorders/Klippel Fiel Syndrome

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Andrea Kramer, MD is a graduate of the University of Michigan and then Temple University School of Medicine.  She did her orthopaedic surgery residency at Northwestern University, followed by a fellowship in pediatric orthopaedics at Shriners Hospital in Salt Lake City.  She is a board certified orthopaedic surgeon and a member of the Pediatric Orthopaedic Society.  In addition to scoliosis, Dr. Kramer sees pediatric patients with developmental orthopaedic problems, fractures, hip and knee problems, and neuromuscular disorders.



Nadine Trznadel, RN, MSN, CNS, ONC is an Advanced Practice Nurse specializing in the care of both adult and pediatric spine patients.  She received her Bachelors Degree in Nursing from Marquette University and her Masters Degree in Nursing from Loyola University Medical Center. She has worked with spine patients for over 25 years in the roles of staff nurse, clinical nurse coordinator, assistant unit leader and currently as a clinical nurse specialist in a collaborative practice with Dr. Steven Mardjetko.  She brings an extraordinary level of knowledge, compassion and nursing expertise to the care of patients undergoing spine surgery. She is a resource for the entire health care team involved in the care of her patients. Nadine is a leader in the National Association of Orthopaedic Nurses, and has been an invited lecturer at local and national orthopaedic meetings.