Table 1: Results of ERO by degrees of ROM.

Study	External Rotation			Abduction			Remarks
	Pre	Post	Gain	Pre	Post	Gain
Al-Zahrani [14]			32			61	Combined Sever release and derotation osteotomy
Kirkos and Papadopoulos [19]	-41	24.5	65.5	93	120	27
Waters and Bae [18]	-14	16	64
Abzug et al. [13]			43.2
Abdelgawad [20]	-27	28	55	132	140	8