Table 2. Histological characteristics of the thumb pulley system.
| Presence of fibrocartilage at the enthesis | Description of the enthesis | |||
|---|---|---|---|---|
| Yes | No | Not available | ||
| A1 | 6 | 2 | / | Fibrous and fibrocartilaginous enthesis (volar plate/sesamoid bone) |
| Av | 3 | 1 | 4 | Fibrous and fibrocartilaginous enthesis |
| Obl | 5 | 2 | 1 | Fibrous and fibrocartilaginous enthesis |
| A2 | / | / | 8 | |
Four hands (2 right/2 left), 4 thumbs, 16 pulleys.
Not available: data lost due to cutting, sample preparation, staining and processing.