Volume and fat infiltration of spino-pelvic musculature in adults with spinal deformity

Table 1 Muscles analyzed in this study, and grouping by function and joint

	Spine extensor	Spine flexor	Hip extensor	Hip flexor	Knee extensor	Knee flexor	Total muscle
Quadratus lumborum	x						x
Tractus medialis	x						x
Tractus lateralis	x						x
Psoas		x		x			x
Iliacus		x		x			x
Biceps femoris short			x			x	x
Biceps femoris long			x			x	x
Semi-membranosus			x			x	x
Semi-tendinosus			x			x	x
Gluteus maximus			x				x
Rectus femoris				x	x		x
Gracilis				x		x	x
Sartorius				x		x	x
Adductor				x			x
Tensor fascia lata				x			x
Vastus lateralis intermedius					x		x
Vastus medialis					x		x