Table 1.

Patient information for individuals modeled in this work. Illustration of the radiographic measurements can be found in Supplemental Figures S-1 and S-2. Cases of borderline dysplasia are indicated in italics and primarily anteverting PAO cases are shown in gray. All other patients were diagnosed with classic dysplasia. Lateral center edge angle (LCEA), Tonnis angle, and anterior center edge angle (ACEA) are shown in degrees, extrusion index is unitless, and the presence of a posterior wall sign is shown by a +. Blank values of ACEA indicate insufficient quality radiographs from which to make this measurement, and blank values of the posterior wall sign indicate this finding was absent on radiographs.

Patient Number	Age (yrs)	Weight (kg)	Operative Side	LCEA		Tonnis Angle		Extrusion Index		ACEA		Post Wall Sign
				pre	post	pre	post	pre	post	pre	post	pre	post
1	14	83.7	Right	7	23	19	7	0.35	0.20	10	20	+
2	14	71.6	Left	20	35	7	−2	0.30	0.10	26	40	+
3	15	46.3	Left	17	29	12	6	0.26	0.12	32	34	+
4	16	67.0	Left	6	27	33	10	0.40	0.17	6	17
5	17	81.6	Right	20	33	14	−1	0.29	0.09	15	34
6	17	75.7	Left	20	28	9	4	0.25	0.14	21	38	+
7	18	86.0	Left	17	26	13	4	0.25	0.17	−12	25
8	19	96.9	Right	25	34	8	3	0.19	0.15	18	31	+
9	19	72.9	Right	8	28	23	5	0.35	0.17		30	+
10	21	50.8	Left	20	31	5	−1	0.20	0.09	17	35
11	24	88.0	Right	31	29	4	5	0.17	0.18		34	+
12	25	70.0	Left	18	37	13	0	0.23	0.06	19	17	+
13	26	86.5	Left	20	26	4	1	0.22	0.10	28	28	+
14	26	76.3	Right	24	45	11	−3	0.16	0.05		48
15	28	88.1	Right	8	36	23	8	0.41	0.07	31	24
16	29	59.8	Left	50	41	−6	−5	0.07	0.12		59	+
17	31	107.4	Right	21	31	8	2	0.30	0.16	19	31
18	33	93.3	Left	28	41	4	−3	0.16	0.01	24	23	+
19	33	93.3	Right	26	35	12	2	0.25	0.16		31	+
20	34	102.9	Right	3	22	29	10	0.37	0.25	7	21	+	+
21	36	71.0	Right	−10	19	35	15	0.61	0.29		23	+
22	38	100.6	Right	12	34	19	1	0.36	0.12	7	26	+
23	38	93.5	Right	18	29	12	11	0.33	0.18	22	27	+
24	38	61.0	Right	20	41	24	13	0.23	0.11	26	28	+
25	42	102.8	Right	6	29	17	6	0.46	0.20	7	13	+
26	45	65.0	Right	12	22	27	16	0.34	0.21	20	25
27	45	83.0	Right	12	25	22	10	0.37	0.14	19	21	+
28	47	72.4	Left	11	32	22	2	0.29	0.07	13	44	+
29	50	61.0	Right	7	29	28	7	0.33	0.27		0
30	54	64.4	Right	15	41	19	0	0.20	0.06	29	4	+