Table 2

Levels treated.

No. of levelsNo of Patients (%)LevelNumber(%)
One24 (60%)L2/30 (0%)
Two14 (35%)L3/43 (7%)
Three1 (2.5%)L4/525 (56%)
Four1 (2.5%)L5/S117 (38%)
Total40 (100%)Total45 (100%)