Table 1.
Demographics of survey responders
| Variable | Value |
|---|---|
| Age (years)* | 63 ± 9.4 (43–83) |
| BMI* | 28 ± 5.6 (20–50) |
| Weight (kg) * | 86 ± 20 (50–145) |
| Sex | |
| Male | 52% |
| Female | 48% |
| Radiographic alignment | |
| Varus | 59% |
| Valgus | 26% |
| Neutral | 15% |
| Most involved compartment | |
| Medial | 68% |
| Lateral | 32% |
| Arthritis severity (1–3)** | |
| Medial compartment | 2.39 ± 0.86 |
| Lateral compartment | 1.66 ± 0.88 |
| Patellofemoral compartment | 1.26 ± 0.49 |
* Values are expressed as mean ± SD, with range in parentheses; ** modified Kellgren-Lawrence scale as follows: Grade 1, minimal to no osteophytes or joint space narrowing; Grade 2, osteophytes and/or moderate joint space narrowing (Kellgren-Lawrence Grade 1 or 2); and Grade 3, severe joint space narrowing (Kellgren-Lawrence Grade 3 or 4).