Table 4 Relation over time between the involvement of individual MCP and PIP joint and grip forcea
Right hand b | Left hand b | |
|---|---|---|
Synovitis | ||
MCP I | − 5.0 (− 8.3 to − 1.7) | − 3.7 (− 6.6 to − 0.8) |
MCP II | − 1.7 (− 4.9 to 1.5) | − 1.7 (− 4.8 to 1.4) |
MCP III | − 1.2 (− 4.4 to 2.0) | − 0.4 (− 3.3 to 2.4) |
MCP IV | − 4.7 (− 9.3 to − 0.2) | − 6.1 (− 10.9 to − 1.4) |
MCP V | − 3.0 (− 7.7 to 1.7) | − 6.0 (− 10.2 to − 1.8) |
PIP I | 0.8 (− 4.5 to 6.1) | − 2.4 (− 6.7 to 1.9) |
PIP II | 0.3 (− 3.3 to 3.9) | − 1.8 (− 5.6 to 1.9) |
PIP III | 0.7 (− 2.6 to 4.0) | − 0.6 (− 4.4 to 3.3) |
PIP IV | − 0.3 (− 4.4 to 3.9) | 0.1 (− 4.2 to 4.3) |
PIP V | − 3.0 (− 8.1 to 2.2) | 1.1 (− 4.6 to 6.9) |
Tenderness | ||
MCP I | − 5.8 (− 9.4 to − 2.2) | − 1.5 (− 5.0 to 2.0) |
MCP II | − 4.0 (− 7.8 to − 0.2) | − 2.2 (− 5.4 to 1.0) |
MCP III | − 2.9 (− 7.1 to 1.2) | − 0.3 (− 3.8 to 3.2) |
MCP IV | − 9.0 (− 12.8 to − 5.2) | − 6.5 (− 10.8 to − 2.1) |
MCP V | − 4.4 (− 9.2 to 0.5) | − 2.6 (− 7.7 to 2.5) |
PIP I | − 1.7 (− 6.9 to 3.5) | − 4.9 (− 9.7 to − 0.2) |
PIP II | − 4.5 (− 8.8 to − 0.2) | − 3.2 (− 7.9 to 1.5) |
PIP III | − 4.3 (− 8.7 to 0.1) | − 3.9 (− 7.8 to − 0.1) |
PIP IV | − 0.9 (− 6.5 to 4.6) | − 0.5 (− 6.1 to 5.0) |
PIP V | − 4.0 (− 8.9 to 0.8) | − 1.9 (− 7.5 to 3.8) |