Table 1: Histomorphometrical assessment of the regenerated rat sciatic nerve wrapped with the solid or porous membranes during a healing period of 12 weeks after axonotmetic injury.

GroupDensity (N/mm2)Number (N)Fiber diameter (mm)Axon diameter (mm)Myelin thickness (mm)

Control10,123 ± 8,3407,621 ± 1988.27 ± 0.295.34 ± 0.231.21 ± 0.05
Crush18,452 ± 1,95210,180 ± 9645.31 ± 0.344.12 ± 0.320.60 ± 0.08
Solid membrane17,196 ± 3,3649,774 ± 3595.77 ± 0.454.54 ± 0.350.62 ± 0.06
Porous membrane14,210 ± 1,6007,780 ± 1,0536.72 ± 0.265.00 ± 0.190.86 ± 0.05
NEUROLAC (commercial PLGA nerve guided tube) [31]21,982 ± 1,92710,532 ± 2,1953.49 ± 0.110.40 ± 0.02