Table 5.
Comparison of characteristics of fallers and non-fallers in the patients and controls
| Patients | Controls | ||||||
| Non-fallers | Fallers | P value | Non-fallers | Fallers | P value | ||
| (n = 50) | (n = 31) | (n = 61) | (n = 19) | ||||
| Surgery information | Time after surgery (year) | 3.7 ± 1.7 | 4.2 ± 2.1 | 0.226 | – | – | – |
| Prior hip arthroplasty (%) | 14.3 | 16.7 | 0.775 | – | – | – | |
| TKA laterality (bilateral/right/left) | (27/10/13) | (16/8/7) | 0.830 | – | – | – | |
| Physical problems | Hearing problems (%) | 33.3 | 37.0 | 0.753 | 36.8 | 21.7 | 0.185 |
| Eye problems (%) | 56.8 | 58.6 | 0.879 | 57.9 | 59.0 | 0.931 | |
| Kyphosis (%) | 23.8 | 50.0 | 0.030 | 50.8 | 57.9 | 0.590 | |
| Hallux valgus (%) | 15.2 | 20.8 | 0.554 | 31.1 | 21.1 | 0.396 | |
| Complications | Cardiac disease (%) | 10.2 | 12.9 | 0.710 | 18.0 | 5.3 | 0.173 |
| Respiratory disease (%) | 0.0 | 6.1 | 0.160 | 6.6 | 0.0 | 0.252 | |
| Diabetes (%) | 18.4 | 19.4 | 0.912 | 6.6 | 10.5 | 0.566 | |
| Hypertension (%) | 42.9 | 38.7 | 0.714 | 44.3 | 36.8 | 0.568 | |
| Ambulatory ability | Walking without assistive device (%) | 43.8 | 42.9 | 0.349 | 88.5 | 73.7 | 0.170 |
| One cane (%) | 39.6 | 25.0 | 9.8 | 26.3 | |||
| Walker (%) | 16.6 | 32.1 | 1.6 | 0.0 | |||
| Grading of walking distance | |||||||
| i) Almost no walking (%) | 0.0 | 0.0 | 0.0 | 0.0 | 0.746 | ||
| ii) Walking in only one room (%) | 0.0 | 0.0 | 0.0 | 0.0 | |||
| iii) Walking mainly in the house (%) | 14.3 | 6.9 | 0.284 | 6.6 | 5.3 | ||
| iv) Walking outside (%) | 57.1 | 48.3 | 42.6 | 52.6 | |||
| v) Walking over 1 km per day (%) | 28.6 | 44.8 | 50.8 | 42.1 | |||
| Functional status | Putting on socks while standing (%) | 34.7 | 25.0 | 0.377 | 68.9 | 57.9 | 0.378 |
| Climbing up and down stairs (%) | 70.8 | 60.7 | 0.365 | 78.9 | 88.5 | 0.290 | |
| Standing up from a chair without using the arms (%) | 66.7 | 44.4 | 0.061 | 91.8 | 68.4 | 0.011 | |
| Fear of falling (%) | 38.3 | 59.3 | 0.082 | 19.7 | 31.6 | 0.278 | |
| Regular exercise (%) | 68.8 | 64.3 | 0.689 | 68.9 | 57.9 | 0.378 | |
TKA, total knee arthroplasty.