**3.6. Pelvic tilt**

**Figure 3.** Posteroanterior full spine X-rays of a patient pre-intervention (a) and (b) post-intervention. It is noteworthy that her coronal balance improved. (c and d) The pre- and post-intervention X-rays of another patient, and the improvement

of Cobb angle was noted.

100 Innovations in Spinal Deformities and Postural Disorders

As the sacral slope increased, the extent of pelvic tilt would reduce, as the sum of sacral slope and pelvic tilt is equal to pelvic incidence, which is a constant (**Table 4**). Nine patients had a reduction in pelvic tilt. The difference between post- and pre-intervention was statistically very significant at *p* < 0.0032.
