Intravertebral pressure during vertebroplasty and balloon kyphoplasty: an in vitro study

Spine
Markus WeisskopfFritz Uwe Niethard

Abstract

Intravertebral pressure (IP) measurements were conducted on human cadaveric lumbar spines in a biomechanical study. To assess the pressure that is generated in the center of the vertebral body during the cement fill in vertebroplasty (VP) and balloon kyphoplasty (BKP). High IP during polymethylmethacrylate (PMMA) injection have frequently been raised as a reason for the higher cement leakage rate during VP in contrast to BKP. The IP recorded in the periphery of the vertebral body is much lower than the injection syringe pressure. The pressure ratios in the central region of the vertebrae close to the injection cannula are not known. VP and BKP were performed in 8 lumbar cadaveric spines. A pressure sensor was placed in the center of the vertebral body. In the VP subgroup a total volume of 6 mL of polymethylmethacrylate cement was delivered in 1.5 mL increments. In the BKP subgroup balloon dilation up to a volume of 4 mL was made before cement injection of 6 mL (1.5 mL increments). Room temperature, cement mixing time, and constant volume flow during cement injection were recorded. During the administration of the first 1.5 mL of bone cement the average IP for VP was 18.5 versus 1.2 kPa for BKP. For the second filling an average...Continue Reading

References

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Citations

Mar 2, 2011·Osteoporosis International : a Journal Established As Result of Cooperation Between the European Foundation for Osteoporosis and the National Osteoporosis Foundation of the USA·J-J BodyJ-Y Reginster
Jul 27, 2011·Osteoporosis International : a Journal Established As Result of Cooperation Between the European Foundation for Osteoporosis and the National Osteoporosis Foundation of the USA·S BoonenUNKNOWN CSA Fracture Working Group of International Osteoporosis Foundation
Jun 12, 2012·Skeletal Radiology·Markus WeisskopfJörg Axel Karl Ohnsorge
Jun 21, 2012·Zeitschrift für Gerontologie und Geriatrie·M GoschP Pietschmann
Oct 18, 2012·BMC Musculoskeletal Disorders·Po-Liang LaiWen-Jer Chen
Nov 23, 2013·Osteoporosis International : a Journal Established As Result of Cooperation Between the European Foundation for Osteoporosis and the National Osteoporosis Foundation of the USA·O LamyB Aubry-Rozier
Dec 7, 2013·European Journal of Orthopaedic Surgery & Traumatology : Orthopédie Traumatologie·Ling-De KongLing-Chen Meng
Aug 22, 2012·Expert Review of Medical Devices·Douglas WardlawSteven Boonen
Aug 31, 2013·Biomedical Journal·Po-Liang LaiI-Ming Chu
Sep 2, 2008·Physical Therapy·Julie M Fritz
May 2, 2018·Asian Spine Journal·Jose Manuel Fernando Ignacio, Katrina Hannah Dizon Ignacio

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