Corrigendum

Monazzam S, Bomar JD, Pennock AT. Idiopathic cam morphology is not caused by subclinical slipped capital femoral epiphysis: an MRI and CT study. Orthop J Sports Med. 2013;1(7):1-6. http://ojs.sagepub.com/content/1/7/2325967113512467.full. Published December 6, 2013. (Original DOI: 10.1177/2325967113512467)

The above article was published with incorrect versions of Tables 1 and 2. The corrected tables are shown below.

TABLE 1

Tilt Angle of Normal Hips ^a

Age Range, y	No. of Hips	Tilt Angle, Mean ± SD	Range
5-7	60	13.4° ± 6.6°	–4° to 29°
8-9	66	12.7° ± 6.5°	–4° to 27°
10-11	50	14.0° ± 6.4°	1° to 27°
12-13	68	11.4° ± 6.4°	–7° to 28°
14-15	67	10.8° ± 7.1°	–4° to 28°
16-19	55	10.9° ± 8.4°	–9° to 30°
5-19	366	12.1° ± 7.0°	–9° to 30°

^a SD, standard deviation.

TABLE 2

Tilt Angle of the 3 Cohorts ^a

Cohort	No. of Hips	Tilt Angle, Mean ± SD	95% CI		Range	Alpha Angle, Mean ± SD
			Lower Bound	Upper Bound
CamIP	22	5.9° ± 8.0°	2.3°	9.4°	−13° to 19°	66.1° ± 10.6°
CamSCFE	11	44.5° ± 16.2°	33.6°	55.5°	18° to 65°	75.8° ± 17.7°
Control	30	12.8° ± 6.6°	10.3°	15.2°	2° to 30°	43.2° ± 4.4°

^a Cam_IP, idiopathic cam morphology; Cam_SCFE, cam morphology secondary to known slipped capital femoral epiphysis; CI, confidence interval; SD, standard deviation.