Carbonated apatite cement augmentation of pedicle screw fixation in the lumbar spine

Spine
J C LotzR D Poser

Abstract

Biomechanical testing with human cadaveric lumbar vertebral bodies was used to determine the utility of an injectable carbonated apatite cancellous bone cement for improving the structural performance of pedicle screws subjected to axial pull-out or transverse cyclic loading. To ascertain whether augmentation with a carbonated apatite cement can enhance pedicle screw fixation in the lumbar spine. The beneficial effects of polymethylmethacrylate augmentation on pedicle screw pull-out strength have been demonstrated. Cancellous bone cement, however, may provide an attractive alternative in this application, as it is remodelable, biocompatible, and nonexothermic. Forty-three cadaveric lumbar vertebral bodies were instrumented with pedicle screws. In 20 of these specimens, axial pull-out strength was compared between the control screws and those augmented with cancellous bone cement. In the remaining 23 specimens, the screws were loaded in the superior-inferior direction with a peak displacement of +/- 1 mm at a frequency of 3 Hz for 5000 cycles. Three parameters were calculated from the force-versus-time data: 1) the energy dissipated, 2) the peak force at the start of the test, and 3) the peak force at the end of 5000 cycles. The...Continue Reading

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Citations

Sep 15, 2004·Osteoporosis International : a Journal Established As Result of Cooperation Between the European Foundation for Osteoporosis and the National Osteoporosis Foundation of the USA·Paul F Heini
Sep 25, 2003·European Spine Journal : Official Publication of the European Spine Society, the European Spinal Deformity Society, and the European Section of the Cervical Spine Research Society·Alexander G HadjipavlouGeorge Sapkas
May 3, 2005·European Spine Journal : Official Publication of the European Spine Society, the European Spinal Deformity Society, and the European Section of the Cervical Spine Research Society·Wei Lei, Zixiang Wu
May 6, 2006·European Spine Journal : Official Publication of the European Spine Society, the European Spinal Deformity Society, and the European Section of the Cervical Spine Research Society·Kenzo UchidaHisatoshi Baba
Jun 26, 2010·European Spine Journal : Official Publication of the European Spine Society, the European Spinal Deformity Society, and the European Section of the Cervical Spine Research Society·Shiyong WanSuochao Fu
May 3, 2011·European Spine Journal : Official Publication of the European Spine Society, the European Spinal Deformity Society, and the European Section of the Cervical Spine Research Society·Ming-Hsien HuChien-Lin Liu
Jan 5, 2002·Biomaterials·Wojciech L SuchanekVictor F Janas
Apr 2, 2008·Chinese Journal of Traumatology = Zhonghua Chuang Shang Za Zhi·Shi-yong WanCe Zhan
Nov 1, 2003·The Spine Journal : Official Journal of the North American Spine Society·Michael T RohmillerDan M Spengler
Jun 21, 2001·ANZ Journal of Surgery·W R MooreG I Bain
Sep 2, 2006·Spine·Serena S Hu, Sigurd H Berven
Nov 25, 2005·Journal of Spinal Disorders & Techniques·Abtullah MilcanFehmi Kuyurtar
Nov 1, 2007·Journal of Spinal Disorders & Techniques·Tomoyuki TakigawaToshifumi Ozaki
Aug 5, 2009·Journal of Spinal Disorders & Techniques·Mehmet AydoganAzmi Hamzaoglu
Apr 3, 2007·American Journal of Veterinary Research·Martin WaselauAlicia L Bertone
Mar 11, 2011·Journal of Neurosurgery. Spine·Serkan InceoğluRobert F McLain
Jul 19, 2007·Journal of Neurosurgery. Spine·Bruce M FrankelChiang Wang
Jan 5, 2008·Journal of Neurosurgery. Spine·Arun T JacobPatrick W Hitchon
Aug 8, 2014·Spine·Daniel A BaluchAvinash G Patwardhan

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