Fig. 1
Fig. 1
Images demonstrating the criteria used for measuring spinal canal dimensions in the present study. A & B - Interfacet distance (A-x – pre-op; B-x’ – post-op) and lateral recess depth (A-y,z – pre-op; B-y’,z’ – post-op). C & D – Lateral recess angle (C – pre-op; D – post-op). E & F – Cross-sectional spinal canal area (E – pre-op; F – post-op). G & H – Effective AP canal diameter (G – pre-op; H – post-op)
