An article published in The Spine Journal examines polyurethane materials use in spine surgery.
The study authors conducted a systematic review of information from all sources concerning polyurethane use in spine devices, including literature and information from the Food and Drug Administration website.
The review includes devices that are in testing or have entered clinical practice with elastomeric polyurethane polymers — such as disc replacements, dynamic stabilization of spinal movement or motion limitation to relieve nerve root compression and pain. Devices that were tested or designed but no longer pursued were also included.
The study authors came to these conclusions:
• Polyurethane use has expanded in medicine as modifications to polymer stability in the physiological environment improved.
• The potential of elastomeric materials to more closely match mechanical properties of the structures being replaced.
• The material's ability to maintain motion between spinal segments appears to hold promise.
• Published results show early success with elastomeric materials applications.