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The observed changes between Year 1 and Year 6 in the radiographic degeneration score [17], which was measured on the stress radiographs
| Change in degeneration score | Trapeziectomy alone | Trapeziectomy with LRTI |
|---|---|---|
| +4 | 2 | 0 |
| +3 | 2 | 0 |
| +2 | 3 | 1 |
| +1 | 5 | 6 |
| 0 | 5 | 8 |
| −1 | 5 | 3 |
| −2 | 2 | 5 |
| −3 | 1 | 4 |
| −4 | 0 | 1 |
| −5 | 0 | 1 |
A positive value indicates increased radiographic degenerative change, whereas a negative value indicates a decrease in the degenerative change; LRTI = ligament reconstruction and tendon interposition.
