Table 1.
| Osteoarthritic patients | Rheumatoid arthritis patients | |||
|---|---|---|---|---|
| Preop. | 24 Mos. Postop. | Preop. | 24 Mos. Postop | |
| Pain | ||||
| None | 1 | 34 | 1 | 18 |
| Sight | 7 | 20 | 6 | 11 |
| Moderate | 43 | 2 | 13 | 1 |
| Severe | 7 | 2 | 11 | 1 |
| Range of motion | ||||
| Over 100 degrees | 3 | 6 | 1 | 2 |
| 80 to 100 degrees | 16 | 21 | 5 | 12 |
| 60 to 80 degrees | 32 | 27 | 15 | 15 |
| Less than 60 degrees | 7 | 4 | 10 | 2 |
| Limp | ||||
| None | 3 | 20 | 1 | 13 |
| Mild | 32 | 32 | 8 | 8 |
| Moderate | 15 | 5 | 11 | 7 |
| Marked | 8 | 1 | 11 | 3 |
| Support needed | ||||
| None | 20 | 34 | 3 | 8 |
| Cane | 32 | 21 | 17 | 16 |
| Walker or crutches | 5 | 2 | 8 | 5 |
| Non-ambulatory | 1 | 1 | 3 | 2 |
| Walking distance | ||||
| Unlimited | 0 | 22 | 0 | 3 |
| Over 5 blocks | 2 | 34 | 5 | 14 |
| 1 to 5 blocks | 18 | 9 | 5 | 9 |
| Less than 1 block | 38 | 3 | 21 | 5 |
| Extensor lag | ||||
| None | 18 | 44 | 4 | 24 |
| Up to 10 degrees | 32 | 13 | 20 | 6 |
| Over than 1 block | 8 | 1 | 7 | 1 |
| Genu valgum* | ||||
| Less than 5 degrees | 8 | 22 | 3 | 16 |
| 5 to 10 degrees | 14 | 9 | 14 | 5 |
| 10 to 20 degrees | 10 | 1 | 5 | 1 |
| Genu varum* | ||||
| Less than 5 degrees | 9 | 21 | 1 | 8 |
| 5 to 10 degrees | 2 | 5 | 4 | 1 |
| 10 to 20 degrees | 15 | 0 | 4 | 0 |
| Flexion contracture* | ||||
| None | 9 | 14 | 2 | 6 |
| Less than 15 degrees | 25 | 42 | 14 | 21 |
| Over 15 degrees | 24 | 2 | 15 | 4 |
* As measured on roentgenograms.