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| Pfirrmann grade I/II (n=10) | Pfirrmann grade IV/V (n=10) | P value | |
|---|---|---|---|
| Mean age (y) | 24.3±4.25 | 38.8±5.32 | <0.01 |
| Sex (male:female) | 3:7 | 4:6 | >0.01 |
| Diseases | Idiopathic scoliosis: 10 | Lumbar disc herniation: 6 Lumbar spinal stenosis: 4 |
