A 10-Year Follow-Up of Two-Incision and Modified Watson-Jones Total Hip Arthroplasty in Patients with Osteonecrosis of the Femoral Head

Table 2

Comparison of radiographic results in the two-incision and Watson-Jones groups.

	Two-incision group	WJ group	value
Cup inclination angle (deg)			0.052
Number of outliers	4 (5.3%)	7 (9.3%)	0.325
(cups with angle of ≤30° or ≥50°)
Cup anteversion (deg)			0.105
Number of outliers	17 (22.7%)	9 (12.0%)	0.099
(cups with angle of ≤5° or ≥25°)
Stem alignment (deg)	Valgus	Valgus	0.127
	Canal fill ratio (%)				0.661
Limb-length discrepancy (mm)			0.510

Values are shown as mean (standard deviation) or as (%).
values for between-group comparisons were determined by the chi-squared test and Fisher’s exact test for categorical variables and Student’s -test for continuous variables.