PS-TKA (n = 20) | MP-TKA (n = 18) | Controls (n = 19) | P value | |
---|---|---|---|---|
Age (years) | 71.00 (65.50 to 74.50) | 75.00 (60.75 to 81.00) | 68.00 (61.05 to 71.00) | 0.191 |
Weight (kg) | 68.25 (63.75 to 73.05) | 67.50 (64.10 to 75.28) | 57.00 (50.15 to 63.15) | 0.010* |
Height (m) | 1.54 (1.49 to 1.58) | 1.53 (1.48 to 1.61) | 1.55 (1.49 to 1.60) | 0.033* |
BMI (kg/m2) | 27.93 (26.94 to 30.35) † | 28.42 (26.68 to 29.75) † | 22.83 (21.36 to 24.93) | < 0.001* |
Female:male | 19:1 | 13:5 | 16:3 | 0.173 |
Months after operation (months) | 13.00 (10.00 to 14.00) | 12.00 (10.00 to 14.00) | NA | 0.511 |
At least one medication (% yes) | 70.00%† | 72.00%† | 16.00% | 0.007* |
Falls 1 year before operation (% yes) | 30.00% | 11.00% | NA | 0.154 |
Trips 1 year before operation (% yes) | 35.00% | 28.00% | NA | 0.632 |
Falls after operation/in the last 12 months (% yes) | 10.00% | 6.00% | 10.00% | 0.825 |
Trips after operation/ in the last 12 months (% yes) | 40.00% | 28.00% | 37.00% | 0.443 |
Pre- vs post-operation falls | 6 vs 2 | 2 vs 1 | NA | NS |
Pre- vs post-operation trips | 7 vs 8 | 5 vs 5 | NA | NS |
Use of walking aids outdoor (% yes) | 55.00% | 62.00% | 0.00% | 0.343 |