Table 2.
Comparison of Meniscal Extrusion at Ultrasound (Supine and Standing) Between the 3 Subject Groups
| Meniscus: Normal (N = 36) | Meniscus: Degeneration (N = 20) | Meniscus: Tear (N = 43) | P Value | |
|---|---|---|---|---|
| Reader 1 | ||||
| Extrusion: supine | 0.77 ± 0.87*# | 1.65 ± 1.23* | 1.63 ± 1.19# | .001 |
| Extrusion: standing | 1.59 ± 1.07* | 2.30 ± 0.90 | 2.31 ± 1.21* | .011 |
| Reader 2 | ||||
| Extrusion: supine | 0.81 ± 0.79*# | 1.58 ± 1.17* | 1.54 ± 1.12# | .003 |
| Extrusion: standing | 1.58 ± 1.00*# | 2.29 ± 0.97* | 2.42 ± 1.10# | .002 |
* and # indicate significant difference between the paired groups.