Table 3 Radiographic and ICRS outcomes of the two groups
Older group (> 65 yrs, N = 62) | Younger group (< 55 yrs, N = 62) | P-value | |
|---|---|---|---|
Preop HKA(degree): Varus | 7.2 ± 3.3 | 6.6 ± 3.3 | n.s |
Postop HKA(degree): Valgus | 2.0 ± 4.0 | 3.1 ± 3.4 | n.s |
Preop WBLR(%) | 22.2 ± 15.7 | 23.2 ± 12.6 | n.s |
Postop WBLR(%) | 55.9 ± 16.8 | 59.3 ± 17.4 | n.s |
Preop PTS(degree) | 12.1 ± 3.6 | 10.2 ± 4.4 | n.s |
Postop PTS(degree) | 11.1 ± 4.1 | 9.7 ± 4.5 | n.s |
Preop I-S(ratio) | 1.0 ± 0.2 | 1.0 ± 0.2 | n.s |
Postop I-S(ratio) | 1.1 ± 0.2 | 1.1 ± 1.0 | n.s |
Preop ICRS(MFC) | 0/6/13/16/27 | 0/9/22/20/11 | n.s |
Postop ICRS of MFC | 0/9/22/20/9 | 0/7/31/14/10 | n.s |
Delta ICRS(Improved/Unchanged/Worsen): MFC | 21/36/5 | 27/30/4 | n.s |
Preop ICRS of PF | 14/24/6/11/7 | 21/17/13/7/4 | n.s |
Postop ICRS of PF | 14/28/8/8/4 | 19/21/12/8/2 | n.s |
Delta ICRS(Improved/Unchanged/Worsen): PF | 3/55/4 | 5/50/6 | n.s |