Table 2.

Quantification of Hip Radiographic Measurements

Measurement	Range for Measurements
Sharp angle	33°-38°, normal
	<32°, insignificant
	39°-42°, borderline
	>42°, dysplastic
Tönnis angle	−10° to 10°, normal
	>10°, acetabular dysplasia
	<10°, pincer lesion
Lateral center edge angle of Wiberg	22°-42°, normal
	<20°, dysplastic
	≥20° and ≤25°, borderline dysplastic
	≥40°, overcovered
Arthritis	<2-mm joint space indicative of arthritis best managed nonarthroscopically
Alpha angle	<55°, normal
	>55°, cam femoroacetabular impingement