Improved surgical exposure and early clinical outcomes using a femoral-release-first technique in direct anterior approach during total hip arthroplasty

Table 3 Postoperative radiological measurements and complications between the two groups^ψ

Measurements	FRF group (N = 44)	TA group (N = 69)	p value
Acetabular cup
Inclination angle (°)	41.3 ± 2.2	42.0 ± 2.6	0.105^a
Anteversion angle (°)	15.2 ± 1.6	19.8 ± 3.9	0.000^a
Femoral stem
Varus/neutral/valgus	3/41/0	5/64/0	1.000^b
Subsidence (mm)	0.89 ± 0.62	0.93 ± 0.63	0.733^a
Complications			0.000^b
Greater trochanter fracture	0 (0%)	2 (2.9%)
Delayed incision healing	0 (0%)	1 (1.4%)

^ψ Continuous variables are expressed as the mean and standard deviation. Categorical variables are presented as numbers with percentages in parentheses
^aIndependent‑sample Mann–Whitney U test
^bPearson's Chi-square test. The boldface indicates statistical significance. FRF, femoral-release-first; TA, traditional approach

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