TABLE 1.

Demographics and Intraoperative Findings^a

	Control	Air Arthrogram	P b
Demographics
Sex			.229
Male	17	22
Female	18	13
Side involved			.322
Right	24	20
Left	11	15
Age, y	37.3 ± 10.6	34.3 ± 9.9	.208
BMI, kg/m2	26.2 ± 4.7	24.4 ± 3.5	.063
Alpha angle, deg	62.2 ± 5.7	59.8 ± 4.9	.066
Lateral center-edge angle, deg	34.6 ± 7.1	34.1 ± 6.4	.752
Labral tears	34	35	.314
Preoperative narcotic use	8	7	.771
Intraoperative findings
Wave sign	23	22
Median acetabular cartilage condition	3	3
Median femoral cartilage condition	2	2
Median labral condition	3	3
Cam resection (femoroplasty)	35	35
Pincer resection (acetabuloplasty)	22	25
Labral repair	32	33
Labral debridement	2	2
Microfracture	2	1
Chondroplasty	0	1
Traction time, min	63.6 ± 19.1	63.2 ± 21.2	.939
Procedure time, min	110.8 ± 23.7	103.3 ± 24.3	.197

^aData are reported as mean ± SD or counts. BMI, body mass index.

^bStudent unpaired-samples t test for mean values and chi-square test for categorical values.