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. 2008 Oct;25(10):1227–1240. doi: 10.1089/neu.2007.0388

Table 1.

Comparison of Widely Used SCI Devices

Device name Rat/mouse Injury parameter (accuracy) Calibration method Dwell-time Velocity (m/sec) Target stabilization Monitors Reference
LISA Y/Y Displacement (±0.007 mm) Non-contact laser sensor 50 msec to 5 sec (±5 msec) 0.5–2.0 Mouse or rat stabilizer Velocity Force Duration of compression Present study
NYU Y/N Velocity (±5%) Contact (closed circuit) Variable, depends on operator release 0.3–0.9 Two pairs of clamps on spinous processes Velocity Height Movement of vertebra Gruner et al., 1992
ESCID Y/Y Displacement (±0.008 mm) Contact (Ling vibrator)a   0.148 Two pairs of forceps on spinous processes Velocity Force Momentum Stokes et al., 1992
IH Y/Y Force (depends on background noise) Internal Immediately <5 msec 0.1–0.13 Two pairs of forceps on spinous processes Force Displacement Scheff et al., 2003
Weight drop Y/Y Velocity (NA) Contact (visual observation) Variable, depends on operator release 0.3–0.9 Two pairs of forceps on spinous processes Strain Force Gale et al., 1985
Modified aneurysm clips Y/Y Clip tension (depends on location of blades on the cord)a NA Variable, depends on operator release NA None needed None Rivlin et al., 1978
a

The importance of the closing velocity of the clip blades on the spinal cord was ignored. The outcome of injury can be dramatically different using the same clip but with dissimilar releasing methods (unpublished data).