Computed-tomography-based anatomical study to assess feasibility of pedicle screw placement in the lumbar and lower thoracic pediatric spine.

Child's Nervous System : ChNS : Official Journal of the International Society for Pediatric Neurosurgery
Kashif A ShaikhDaniel H Fulkerson

Abstract

The anatomy of the pedicle is complex and three-dimensional; however, there are basic dimensions important for possible screw placement. There are relatively few studies examining the pedicle anatomy in children. This study was performed to evaluate the feasibility of pedicle screw placement in children aged 5-16, based on key anatomic dimensions. A case illustration is also provided. The CT scans of 102 consecutive children were studied. Patients with abnormal anatomy were excluded. The parameters of the pedicle isthmus width (W), estimation of screw length (L), and axial angle (A) were recorded for 1,632 pedicles from T10 through L5. Patients were divided into four age groups. Statistical analysis was performed evaluating the difference between males and females and of the particular anatomy at the thoracolumbar junction. The pedicles increase in both L and W from T10-T12 and from L1-L5. L1 has a consistently smaller W compared to T12 in both genders over all age ranges. Estimating a W of 4.5 mm necessary for safe screw placement, we calculate that virtually all pedicles of T12 and L3-L5 are large enough for screw placement in both genders after age 8. L4 and L5 are large enough for screw placement in both genders in the youn...Continue Reading

References

Aug 1, 1995·The Journal of Bone and Joint Surgery. American Volume·A R VaccaroJ M Cotler
Aug 1, 1995·The Journal of Bone and Joint Surgery. American Volume·A R VaccaroH S An
Jun 1, 1996·Spine·N A EbraheimR A Yeasting
Feb 1, 1997·Spine·N A EbraheimR A Yeasting
Jan 1, 1997·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·A A Faraj, J K Webb
Apr 7, 2000·Spine·P A Robertson, N R Stewart
Nov 7, 2000·Spine·M R ZindrickM A Lorenz
Oct 27, 2001·Spine·P J BelmontD W Polly
Feb 5, 2008·Journal of Vascular Surgery·Stavros K Kakkos, Alexander D Shepard
Jul 16, 2008·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·Bernd WegenerHans Roland Dürr
Nov 28, 2008·Journal of Neurosurgery. Pediatrics·Ashwin ViswanathanAndrew Jea

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Citations

Nov 26, 2013·The Spine Journal : Official Journal of the North American Spine Society·Ronald A LehmanHaines Paik
Aug 16, 2016·Journal of Neurosurgery. Spine·Jared M PisapiaJames M Schuster
Jan 1, 2014·Clinical Anatomy : Official Journal of the American Association of Clinical Anatomists & the British Association of Clinical Anatomists·Rodolfo Morales-AvalosSantos Guzmán-López

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