Dimensions of triangles

Right-sided

Left-sided

p-values

Greater trochanter (GT) –Posterior superior iliac spine (PSIS)

148.4 ± 8.5

148.2 ± 8.7

0.913

Greater trochanter (GT) – Coccyx (C)

120.1 ± 9.0

117.7 ± 9.3

0.103

Posterior superior iliac spine (PSIS) – Coccyx (C)

129.8 ± 11.2

131.0 ± 14.2

0.588

Greater trochanter (GT) – midpoint (P) between PSIS and coccyx

135.8 ± 10.1

132.6 ± 18.0

0.342

Upper triangle area

4,349.5 ± 903.1

3,040.7 ± 457.3

0.158

Lower triangle area

4,137.1 ±947.1

3,127.4 ±708.7

0.616