Table 2.

Comparison of the amount (%) of MCSA muscle damage between the lateral transgluteal approach and the 4 MIS approaches. Values are median (range)

Muscle	Lateral transgluteal	MIS anterior	MIS anterolateral	MIS 2-incision	MIS posterior	p-value (K-W test)
M. gluteus medius	22 (6–40)	0 (0–35)	18 (6–27)	26 (14–40)	18 (0–22)	0.1
M. gluteus maximus	1 (0–3)	0 (0–0)	0 (0–0)	0 (0–5)	2 (0–5)	0.1
M. gluteus minimus	48 (0–100)	31 (0–54)	27 (0–46)	12 (0–21)	24 (0–45)	0.5
M. quadratus	0 (0–0)	0 (0–20)	0 (0–0)	0 (0–0)	70 (13–100)	< 0.01
M. rectus femoris	0 (0–0)	0 (0–24)	0 (0–0)	0 (0–0)	0 (0–0)	0.8
M. tensor fascia latae	0 (0–26)	35 (16–100)	0 (0–0)	44 (7–49)	0 (0–0)	0.01