Attachment site of tract: MRI and operative findingsa
| Tract | Attachment Site | LDM (n = 12) | CDS (n = 10) | P Value | ||
|---|---|---|---|---|---|---|
| MRI | OP | MRI | OP | |||
| Intrathecalb | Conus medullaris | 12 (100%) | 12 (100%) | 2 (20%) | 3 (30%) | .004 |
| Filum terminale/nerve root | – | – | 2 (20%) | 2 (20%) | ||
| Dermoid/epidermoid tumor | – | – | – | 4 (40%) | ||
| Not availablec | 5 (50%) | |||||
| No extension into the spinal canal | – | – | 1 (10%) | 1 (10%) | ||
Note:—Op indicates operative findings.
↵a Data are number of patients, with percentages in parentheses.
↵b Because the tract of 1 patient with CDS was revealed to end in the dura mater at the operation and there was no tract in the intrathecal area, only 9 CDS tracts were assessed with regard to visibility and attachment site in its intrathecal portion.
↵c The attachment sites of the tracts could not be evaluated on MRI.