Fig. 2

Lumbosacral spine with pelvis lateral view showing a normal spine with reduced mobility (1B). a PI–LL (55.5°–64.8° = -9.3°). b, c ^SS < 10°
Lumbosacral spine with pelvis lateral view showing a normal spine with reduced mobility (1B). a PI–LL (55.5°–64.8° = -9.3°). b, c ^SS < 10°