Patient, operative, and immediate postoperative details for the 3 patients included in the case series.
| Age, y | Sex | ASA | BMI | Level | Diagnosis | Procedure | Durotomy Location | Durotomy Size, mm | Repair Agent | Operative Time, min | Length of Hospital Stay, min |
| 73 | M | 3 | 26.7 | L2-L3 | Large, central HNP causing canal and right greater than left lateral recess stenosis with right L3 radiculopathy | Right transforaminal discectomy | Ventral nerve root sleeve of the traversing right L3 nerve root | 2 | Collagen matrix | 87 | 309 |
| 49 | M | 1 | 28.1 | L3-L4 | Left-sided foraminal/far lateral HNP causing left L3 radiculopathy | Left transforaminal discectomy | Ventrolateral aspect of the traversing left L4 root | 2 | Collagen matrix | 58 | 172 |
| 43 | F | 1 | 24.1 | L4-L5 | Facet and ligamentum flavum hypertrophy with superimposed left paracentral HNP causing lateral recess stenosis and left L5 radiculopathy | Left interlaminar hemilaminotomy and discectomy | Dorsolateral aspect of the thecal sac | 2.5 | Collagen matrix and polyethylene glycol hydrogel | 123 | 1068 |
Abbreviations: ASA, American Society of Anesthesiologists; BMI, body mass index; F, female; HNP, herniated nucleus pulposus; M, male.