The efficacy of hydroxyapatite for screw augmentation in osteoporotic patients.

Abstract

The stability of screw constructs is of considerable importance in determining the outcome, especially in spinal osteoporosis. Polymethylmethacrylate (PMMA) has been proven as an effective material for increasing the pullout strength of pedicle screws inserted into the osteoporotic bones. However, PMMA has several disadvantages, such as its exothermic properties, the risk of neural injury in the event of extravasation, and difficulties in performing revision surgery. In the current study, we used hydroxyapatite (HA) cement for screw augmentation in spinal osteoporosis. We conclude that HA cement is a useful tool for screw augmentation and recommend it as a promising option for spinal instrumentation in osteoporotic patients.

• Authors: Sang Hoon Jang, June Ho Lee, Ji Young Cho, Ho-Yeon Lee, Sang-Ho Lee
• Journal: Neurologia medico-chirurgica (Neurol Med Chir (Tokyo)) Vol. 53 Issue 12 Pg. 875-81 ( 2013) ISSN: 1349-8029 [Electronic] Japan
• PMID: 24201099 (Publication Type: Case Reports, Evaluation Study, Journal Article, Research Support, Non-U.S. Gov't)

Chemical References

• Benzophenones
• Biocompatible Materials
• Bone Cements
• Ketones
• Polymers
• polyetheretherketone
• Polyethylene Glycols
• Durapatite

Topics

• Aged
• Anthropometry
• Benzophenones
• Biocompatible Materials
• Bone Cements
• Bone Screws
• Durapatite
• Female
• Humans
• Internal Fixators
• Ketones
• Lumbar Vertebrae (diagnostic imaging, surgery)
• Male
• Middle Aged
• Osteoporosis (complications, surgery)
• Polyethylene Glycols
• Polymers
• Radiography
• Retrospective Studies
• Spinal Fusion (instrumentation)
• Spondylolisthesis (complications, surgery)
• Treatment Outcome