Breakdown of data on failed and repeat spinal punctures
| Reason for Initial FGLP Failure (No.) | No. of Patients Who Returned for a Repeat Spinal Puncture/No. of Patients with Initial FGLP Failure | No. of Successful Repeat Spinal Punctures/No. of Patients Who Returned for a Repeat Spinal Puncture Attempt |
|---|---|---|
| Lack of egress of CSF in the LP needle confirmed in the spinal canal (n = 37) | 15/37 (40.5%) | 14/15 (93.3%) |
| Degenerative changes (n = 8) | 2/8 (25%) | 2/2 (100%) |
| Patient’s inability to follow commands and/or due to pain and anxiety (n = 10) | 6/10 (60%) | 6/6 (100%) |
| High BMI (n = 3) | 1/3 (33%) | 1/1 (100%) |
| Patient in lateral decubitus position (n = 2) | 2/2 (100%) | 2/2 (100%) |
| Postsurgical scarring or instrumentation (n = 2) | 1/2 (50%) | 1/1 (100%) |
| Unknown (n = 1) | 1/1 (100%) | 1/1 (100%) |
| Total (n = 63) | 28/63 (44%) | 27/28 (96%) |