Table 11 Hoffa- and effusion-synovitis – baseline and change over 24 months
| Â | All knees | No ROA | ROA | P | ||||
|---|---|---|---|---|---|---|---|---|
Frequency | Percent | Frequency | Percent | Frequency | Percent | Â | ||
Baseline | ||||||||
 Hoffa synovitis | 0 | 96 | 33.4 | 57 | 44.2 | 39 | 24.7 | 0.0001 |
1 | 143 | 49.8 | 60 | 46.5 | 83 | 52.5 | ||
2+ | 48 | 16.7 | 12 | 9.3 | 36 | 22.8 | ||
 Effusion synovitis | 0 | 155 | 54.0 | 101 | 78.3 | 54 | 34.2 | 0.0000 |
1 | 87 | 30.3 | 23 | 17.8 | 64 | 40.5 | ||
2 | 33 | 11.5 | 1 | 0.8 | 32 | 20.3 | ||
3 | 12 | 4.2 | 4 | 3.1 | 8 | 5.1 | ||
Change in maximum score by grade | ||||||||
 Hoffa synovitis | -1 | 16 | 7.0 | 6 | 5.5 | 10 | 8.3 | 0.7526 |
0 | 196 | 85.2 | 98 | 89.1 | 98 | 81.7 | ||
1 | 17 | 7.4 | 5 | 4.5 | 12 | 10.0 | ||
2 | 1 | 0.4 | 1 | 0.9 | 0 | 0.0 | ||
 Effusion synovitis | -2 | 1 | 0.4 | 1 | 0.9 | 0 | 0.0 | 0.7947 |
-1 | 22 | 9.6 | 5 | 4.5 | 17 | 14.2 | ||
0 | 156 | 67.8 | 83 | 75.5 | 73 | 60.8 | ||
1 | 48 | 20.9 | 19 | 17.3 | 29 | 24.2 | ||
2 | 2 | 0.9 | 1 | 0.9 | 1 | 0.8 | ||
3 | 1 | 0.4 | 1 | 0.9 | 0 | 0.0 | ||
Change in maximum score by category | ||||||||
 Hoffa synovitis | Improvement | 16 | 7.0 | 6 | 5.5 | 10 | 8.3 | 0.7380 |
Stable | 196 | 85.2 | 98 | 89.1 | 98 | 81.7 | ||
Worsening | 18 | 7.8 | 6 | 5.5 | 12 | 10.0 | ||
 Effusion synovitis | Improvement | 23 | 10.0 | 6 | 5.5 | 17 | 14.2 | 0.8159 |
Stable | 156 | 67.8 | 83 | 75.5 | 73 | 60.8 | ||
Worsening | 51 | 22.2 | 21 | 19.1 | 30 | 25.0 | ||