Faculty and Staff

Nathaniel R Ordway, MS, PE Assistant Professor of Orthopedic Surgery 3219 Institute For Human Performance Upstate Medical University 750 East Adams Street Syracuse, NY 13210 (315) 464-6462 Lab/Professional Web Site

Education and Clinical Training

Research Program and Department Affiliations

Research Interests

Clinical and experimental spine biomechanics; Motion analysis and functional assessment

Research Abstract

The Use of Radiostereometric Analysis (RSA) in Spinal Surgery

RSA is a technique that quantifies how bones (and/or an implant) move with respect to each other using biplanar radiography. RSA has the potential to answer many clinical questions with regards to spinal surgery. Our current efforts have focused on clinical studies using RSA to evaluate fusion, discectomy, intervertebral disc replacement and dynamic stabilization.

Pedicle Screw Fixation in Osteoporotic Bone

Pedicle screw fixation in osteoporotic bone is problematic. Failure of fixation at the screw-bone interface can lead to mechanical and neurological complications. This is especially true in patients with osteoporosis who require pedicle screw fixation for progressive fracture deformity or neurological deterioration. We have been investigating pedicle screw features and techniques in order to optimize the fixation strength of the screw-bone interface.

Biomechanical Assessment of Nucleus Replacement

Degeneration and herniation of the intervertebral disc can result in the stimulation of mechanical and/or chemical pain generators. Replacement of the intervertebral disc has been attempted in the past, however replacement of the entire disc may not be necessary in a number of clinical situations. We have been investigating novel new approaches and technologies that focus on replacement of only the nucleus and sustaining the integrity of the annulus.

Publications - link to PubMed

This profile was last updated on 04/22/2009

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