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Table 1 Demographics of the patients

From: Femoral diameter and stem type are independent risk factors for ARMD in the Large-headed ASR THR group

Demographic

 

Patients (n)

Hips (n)

196

225

Age

Mean (SD, range)

60.3 (10.3, 25 to 84)

<50 years

25 (15.7%)

≥50 years

171 (84.3%)

Sex

Male

181 (92.3%)

Female

15 (7.7%)

Diagnosis

Primary OA

145 (64.9%)

Other

80 (35.1%)

Femoral diameter

Median (range)

53 mm (51 to 61)

51 mm

88

53 mm

73

55 mm

33

57 mm

17

59 mm

13

>59 mm

1

Preoperative ROM

Mean (SD, range)

124° (22°, 10° to 276°)

<100°

81 (43.4%)

≥100°

131 (56.6%)

Cup coverage

Mean (SD, range)

31.4° (6.8°, 10.7° to 52.0°)

<25°

34 (28.1%)

≥25°

191 (71.9)