Table 1:
Correlation between the ultrasonographic and radiographic measurements of the medial joint space.
Ultrasonography
Radiography
Correlation Coefficient
P-value
Throwing side
4.2 ± 0.9 mm
4.8 ± 0.8 mm
0.547
0.0009
Non-throwing side
3.3 ± 1.0 mm
3.8 ± 1.1 mm
0.296
0.10
Increase in the MJS*
0.9 ± 0.5 mm
1.0 ± 0.6 mm
0.348
0.05
* Increase in the MJS (medial joint space) on the throwing side.