From: Role of dynamic sonography in ulnar nerve entrapment at elbow
 | Control group | Asymptomatic UNE group | P value | Symptomatic UNE group | P value | |
---|---|---|---|---|---|---|
At elbow extension (cm2) | Range | 0.03–0.1 | 0.03–0.21 | 0.16 | 0.04–0.23 | 0.001 |
Mean ± SD | 0.06 ± 0.02 | 0.06 ± 0.04 | 0.10 ± 0.05 | |||
At elbow flexion (cm2) | Range | 0.03–0.09 | 0.03–0.23 | 0.37 | 0.03–0.21 | 0.005 |
Mean ± SD | 0.06 ± 0.02 | 0.07 ± 0.05 | 0.09 ± 0.05 | |||
Above elbow (cm2) | Range | 0.03–0.08 | 0.03–0.06 | 0.23 | 0.04–0.19 | 0.12 |
Mean ± SD | 0.05 ± 0.01 | 0.05 ± 0.01 | 0.06 ± 0.03 | |||
Below elbow (cm2) | Range | 0.03–0.06 | 0.03–0.06 | 0.14 | 0.03–0.18 | 0.62 |
Mean ± SD | 0.05 ± 0.01 | 0.05 ± 0.01 | 0.05 ± 0.03 |