Effectiveness of cemented rescue screws for anterior cervical plate fixation

Journal of Neurosurgery. Spine
Tobias PitzenWolf-Ingo Steudel

Abstract

Among the various ways to optimize the fixation of bone implants is to use bone cement, for example, in a total hip prosthesis. No data exist, however, concerning the effectiveness of cemented rescue screws for anterior cervical plate fixation. The aim of this study was to investigate whether cemented rescue screws increase fixation strength in comparison with uncemented standard screws. Six cervical spine segments (C4-7) were explanted during routine autopsy studies from fresh human cadavers. Bone mineral density (BMD) was measured for each vertebral body (VB) using quantitative computerized tomography scanning, and 24 VBs were dissected from the segments. Two initial pilot holes were drilled into each VB parallel to the sagittal plane. Based on their BMD, the specimens were assigned to one of two groups in which torque and pullout force were tested. The test was begun with standard screws and was repeated with cannulated slotted rescue screws into which bone cement was injected. The mean values of peak torque and pullout forces resulting from the left and right measurements were used for statistical analysis. A t-test was performed to determine the effect of screw type on peak torque and pullout force. Moment correlation coef...Continue Reading

References

Jun 18, 1998·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·B JostL P Nolte
Feb 24, 2001·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·P I WuismanB J Van Royen
Aug 24, 2001·Journal of Orthopaedic Research : Official Publication of the Orthopaedic Research Society·B E McKoy, Y H An
Dec 4, 2002·Clinical Orthopaedics and Related Research·William J MaloneyWilliam H Harris
Mar 30, 2004·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·T R PitzenW I Steudel
Jul 13, 2004·The Spine Journal : Official Journal of the North American Spine Society·Stephen D CookScot D Miller

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Citations

Feb 3, 2007·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·Konrad SellerBerend Linke
Jul 26, 2015·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·Luca Papavero
Apr 9, 2010·Yonsei Medical Journal·Moon Young JungSang Sup Chung
Jan 22, 2017·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·Sebastian HartmannWerner Schmölz

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