Zarghooni K, Boese CK, Siewe J, Röllinghoff M, Eysel P, Scheyerer MJ. Occipital bone thickness: Implications on occipital-cervical fusion. A cadaveric study.
Acta Orthop Traumatol Turc 2016;
50:606-9. [PMID:
27919561 DOI:
10.1016/j.aott.2016.04.003]
[Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/25/2015] [Revised: 03/08/2016] [Accepted: 04/20/2016] [Indexed: 11/22/2022]
Abstract
OBJECTIVE
The aim of this study was to create a map of the occipital bone using a cadaveric morphometric analysis.
MATERIAL
Twelve heads, from seven male and five female cadavers, were studied. The thickness of the occipital bone was measured with a digital vernier caliper within a coordinate system.
RESULTS
The maximum thickness of the occipital bone could be measured at the external occipital protuberance (mean 15.4 mm; range 9-29.3 mm). All male individuals had higher bone thickness around this point. Further lateral a steady decrease of bone thickness could be observed. Same could be observed in craniocaudal direction. However, values above the superior nuchal line were on average thicker than below.
CONCLUSION
The measurements demonstrated a great individual variability of bone thickness of the occipital bone. The results emphasize the role of preoperative planning for the feasibility of placement of an occipital screw.
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