Table 1.
Pre-operative subject characteristics (n = 54).
| Walking aid, n(%) | |
| None | 32 (59) |
| Cane | 15 (28) |
| Four wheeled walker | 7 (13) |
| Number of comorbidities, median(Q1-Q3)*min- max† | 3 (2–4) 1–6 |
| Five most prevalent comorbidities, n(%) | |
| High Blood Pressure | 32 (59) |
| Back Pain | 24 (44) |
| Diabetes | 15 (28) |
| Heart Disease | 12 (22) |
| Depression | 10 (19) |
| KOOS subscale scores§ mean (SD‡) | |
| Pain | 46.9 (15.1) |
| Symptoms | 48.4 (14.9) |
| ADL | 48.3 (16.9) |
| Sport/Rec | 11.5 (14.6) |
| QOL | 21.6 (14.5) |
| WOMAC subscale scores§ mean (SD) | |
| Pain | 51.5 (16.4) |
| Stiffness | 41.4 (16.6) |
| Function | 48.3 (16.9) |
| Numeric Pain Rating Scale||, mean (SD), min-max | 6.4 (2.1) 1–10 |
* (Q1-Q3) = 25th to 75th percentile
† min-max = minimum to maximum
‡ SD = Standard deviation
§ KOOS = Knee Injury and Osteoarthritis Outcome score: subscales are Pain, other Symptoms, function in daily living (ADL), function in sport and recreation (Sport/Rec) and knee-related Quality of life (QOL). WOMAC = Western Ontario and McMaster Universities Osteoarthritis Index: subscales are Pain, Stiffness and Function. Subscale scores can vary from 0–100 with 100 indicating the best state
|| Values on the scale can vary from 0 = no pain to 10 = worst possible pain