Table I.

Demographic data of children in the study, alongside percentage change in femoral head morphology observed from supine to standing. Also included is the mean percentage change in femoral head shape of the seven contralateral unaffected hips.

Age	Sex	Side	Stage	Femoral head width	Femoral head height	Lateral extrusion
6	M	Right	1B	+ 14	- 11	+ 23
4	M	Right	2A	+ 6	- 11	+ 26
8	F	Right	2A	+ 1	- 17	+ 4
5	M	Left	2A	+ 10	- 10	+ 23
7	M	Right	2A	+ 6	- 13	- 9
6	M	Right	3A	- 1	+ 1	+ 14
4	M	Left	3A	- 3	- 31	+ 9
4	M	Left	3A	0	-17	+ 10
4	M	Right	3A	+ 3	- 16	- 27
5	F	Left	3B	- 2	- 8	+ 4
5	F	Right	4	+ 1	- 11	- 2