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

Table 1

Demographic data on the two-incision and Watson-Jones groups.

Demographic information	Two-incision group	WJ group	value
Age (years)			Matched
Gender (male : female)	65 : 10	65 : 10	Matched
Side of operation (number of hips)			0.988
Right	42 (56.0%)	41 (54.7%)	—
Left	33 (44.0%)	34 (45.3%)	—
Operation time (min)			<
Perioperative blood loss (mL)			<
Length of hospital stay (day)			0.399
Wound length (cm)			0.677

WJ = Watson-Jones.
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.
significant ().