Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Mean values of CSA, LRD, and APD of L4 and L5 (n=9 in each group)
| Normal | DS | |
|---|---|---|
| CSA L4 (mm2) | 306 | 228 |
| CSA L5 (mm2) | 315 | 273 |
| LRD L4 (mm) | 25.5 | 23.5 |
| LRD L5 (mm) | 27.7 | 27.8 |
| APD L4 (mm) | 16.4 | 14.3 |
| APD L5 (mm) | 16.5 | 14.9 |
CSA: Cross-sectional area, LRD: Left-right diameter, APD: Anterior-posterior diameter
