Reliability of a simple fluoroscopic image to assess leg length discrepancy during direct anterior approach total hip arthroplasty

Table 2 Absolute difference in leg length discrepancy

	Teardrop				Ischium
	Mean	SD	Min	Max	Mean	SD	Min	Max	P value
Fluoro-x-ray difference	2.17	1.7	0.0	9.50	2.63	1.64	0.0	9.5	< 0.001

Absolute difference in mean leg length discrepancy between fluoroscopy and x-ray obtained measurements using radiographic teardrop or ischium reference points. All measurements were obtained by two independent observers.