Table 1.

Percentage and number of joints affected by DEH in the cases reported in the literature.

Limb involved	Cases	%	%	Cases	Joints involved
Lower limb	101	73.2	49.5	50	Single lower
			50.5	51	Multiple lower
Upper limb	33	23.9	90.9	30	Single upper
			9.1	3	Multiple upper
Upper and lower	3	2.2
Spine	1	0.7
Total	138	100