Table 2.

Thompson-Epstein scores.

Scale	Clinical	Radiographic
Excellent	No pain	Normal relationship between head and acetabulum
	Full range of hip motion	Normal articular cartilaginous space
	No limp	Normal density of femoral head
		No spur formation
		No calcification in capsule
Good	No pain	Normal relationship between head and acetabulum
	Free motion (75% of normal hip)	Minimal narrowing of cartilage space
	No more than a slight limp	Minimal de-ossification
		Minimal spur formation
		Minimal capsular calcification
Fair*	Pain but not disabling	Moderate narrowing of cartilage space
	Limited motion of hip, no adduction deformity	Motting of head, areas of sclerosis and decreased density
		Moderate spur formation
	Moderate limp	Moderate to severe capsular calcification
		Depression of subchondral cortex of the femoral head
Poor*	Disabling pain	Almost complete obliteration of cartilaginous space
	Marked limitation of motion or adduction deformity	Relative increase in density of femoral head
	Redislocation	Subchondral cyst formation
		Sequestrae formation
		Gross deformity of femoral head
		Severe spur formation
		Acetabular sclerosis

* Meet one or more clinical/radiographic conditions.