| Staff | Percentage (%) |
Inactive synovitis | 52 | 98.1 |
Bone erosions | 47 | 88.7 |
Overlap type deformation | 32 | 60.4 |
Joint effusion | 18 | 34.0 |
Active synovitis | 9 | 17.0 |
Inactive tenosynovitis | 9 | 17.0 |
De Quervain tendinitis | 4 | 7.5 |
Angulation type deformation (MCP, MTP) | 4 | 7.5 |
Active tenosynovitis | 2 | 3.8 |
Thumb gutter cyst | 1 | 1.9 |