Skip to main content

Table 1 Summary of model parameters.

From: The influence of coughing on cerebrospinal fluid pressure in an in vitro syringomyelia model with spinal subarachnoid space stenosis

Variable Dimension Description
DSAS 15.6 ± 0.3 mm diameter of subarachnoid space
DSC 10.0 ± 0.2 mm diameter of spinal cord
T 1.2 ± 0.1 mm thickness of the glass tube used to form the spinal column
TSSED 12.0 ± 0.5 mm distensible tube thickness for SSED
Dsyrinx 7.0 ± 0.2 mm diameter of syrinx (constant until 28.7 mm from rostral end of syrinx, tapered to 3.2 mm after that point)
LSC 480 ± 2 mm length of spinal cord and spinal column
Lsyrinx 132 ± 1 mm length of syrinx
Lstenosis 20 ± 1 mm length of spinal subarachnoid space stenosis
%stenosis >90% percent of spinal subarachnoid space blocked by stenosis
IDstenosis 10.7 mm approximate inner diameter of stenosis
ESC SSE = 0.32 MPa
SRE = 0.83 MPa
SAE = 0.52 MPa
SSED = 0.52 MPa
Young's modulus of spinal cord
ESSED SSED = 1.99 MPa Young's modulus of distensible spinal column (SSED)
  1. Key: Tolerances are estimated from the manufacturing process tolerances and supplier specifications. SSE = stenosis with syrinx model, SSED = stenosis with syrinx model with distensible spinal column, SRE = stenosis removed model, and SAE = stenosis alone model.