Leg length discrepancy in patients with slipped capital femoral epiphysis

Figures & data

Figure 1. Measurement of the difference in articulotrochanteric distance (ATD).

Leg-length discrepancy (LLD), articulotrochanteric distance difference (ATDD), and p-values according to different factors based on bivariate analysis

Factor	No. of patients for LLD	Final LLD (cm) and 95% CI	p-value	No. of patients for ATDD	Final ATDD (cm) and 95% CI	p-value
Sex						0.4
Male	34	1.4 (0.3–2.5)		50	1.0 (0.2–1.8)
Female	30	1.3 (0.2–2.4)		35	0.9 (0.2–1.6)
Race						0.6
Negroid	46	1.4 (0.2–2.6)		61	1.1 (0.2–2.0)
Others	18	1.2 (0.4–2.0)		24	1.0 (0.2–1.8)
Severity of slip			< 0.001			0.02
Mild	41	1.0 (0.2–1.8)		51	0.7 (0.2–1.2)
Moderate	13	1.4 (0.2–2.6)		22	1.0 (0.2–1.8)
Severe	10	1.9 (0.3–3.5)		12	1.4 (0.2–2.6)
Stability of slip						0.2
Stable	53	1.3 (0.2–2.4)		72	1.0 (0.2–1.8)
Unstable	11	1.5 (0.2–2.8)		13	1.1 (0.1–2.1)

Figure 2. Regression analysis of 64 patients who had both limb-length discrepancy (LLD) measurements and articulotrochanteric distance (ATD) measurements, showing the relationship between LLD determined with the use of a scanogram and articulotrochanteric distance difference (ATDD) based on pelvic radiographs.