Clinical presentation |
| No. | % | Rt. | Lt. |
Back pain | +ve | 20 | 100 | - | - |
Unilateral sciatica | +ve | 18 | 90 | 14 | 4 |
Bilateral sciatica | +ve | 2 | 10 | - | - |
Sphincter dist | +ve | 2 | 10 | - | - |