Table 1 Patient demographics and preoperative characteristics

1.

Age (Years)

70.54 ± 5.22

69.90 ± 2.31

p = .5

t = 0.6242

2.

Sex

22 female (70.96%)

09 male (29.03%)

20 female (64.51%)

11male (35.48%)

χ² = 0.2952

p = .586

3.

Severity of disease (Kellgren and Lawrence system)

29 grade IV (93.54%)

2Grades III (6.45%)

30grade IV (96.77%)

1 Grade III (3.22%)

χ² = 0.3503

p = .5539

4.

Deformity (Femorotibial angle)(in degree) (Varus)

18.9 ± 1.03

18.3 ± 1.40

p = 0.0594

5.

Flexion angle(in degree)

90.8 ± 1.21

90.5 ± 1.01

p = 0.29

6.

Co-morbidity (HTN,IHD, DM)

70.96% (n = 22)

74.19% (n = 23)

χ² = 0.081

p = .775