Comparative Analysis between Three Different Lumbar Decompression Techniques (Microscopic, Tubular, and Endoscopic) in Lumbar Canal and Lateral Recess Stenosis: Preliminary Report

Table 3

The change of spinal canal dimension (mm²).

	Pre Mean(SD)	Post Mean(SD)	p value
Endoscopic	81.67±31.30	164.30±53.82	≤0.001
Tubular	89.07±40.16	153.81±67.9	≤0.001
Microscopic	93.52±44.80	179.16±52.72	≤0.001

=statistically significant.