Table 1 Preoperative demographics

Number of patients

68

72

–

Age (years)

69.1 ± 7.6

66.8 ± 8.6

0.095

Gender (female/male)

61/7

59/13

0.19

Diagnosis (OA/RA)

52/16

50/22

0.35

BMI (kg/m²)

25.7 ± 3.4

26.1 ± 4.1

0.53

Preoperative HSS score

47.7 ± 11.8

49.6 ± 12.3

0.351

Preoperative knee ROM

85.3 ± 27.5

89.5 ± 22.7

0.323

Preoperative haemoglobin (g/dl)

125.1 ± 12.9

123.8 ± 14.9

0.581

 Thigh pain

0.1 ± 0.6

0.0 ± 0.5

0.284

 Knee rest pain

0.7 ± 1.3

0.5 ± 1.5

0.399

 Knee active pain

5.5 ± 1.3

5.7 ± 1.6

0.417