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Rod Composition and Diameter for 49 Patients With Adult Spinal Deformity Treated With Pedicle Subtraction Osteotomy Stratified by Whether 2 or 4 Rods Were Used Across the Osteotomy
| Group 1 (4 rods) | Group 2 (2 rods) | P-value | |
|---|---|---|---|
| Rod type | <.001 | ||
| Cobalt chromium | 1 (3.4%) | 16 (80%) | |
| Stainless steel | 11 (37.9%) | 2 (10%) | |
| Titanium | 17 (58.6%) | 2 (10%) | |
| Rod diameter (mm) | <.001 | ||
| 6.35 | 28 (97%) | 2 (10%) | |
| 6.0 | 0 (0%) | 11 (55%) | |
| 5.5 | 1 (3.4%) | 7 (35%) |
