Frequency of extrusion of the distal catheter of a ventriculoperitoneal shunt in hydrocephalus patients over the last 20 years.
| Extrusion type | n (%) |
|---|---|
| Intact | 14 (45.2) |
| Weakness | 17 (54.8) |
| Umbilical | 11 (35.5) |
| Wound scar | 5 (16.1) |
| Inguinal | 1 (3.2) |
| Total | 31 (100) |