Table 4.
Wrist Motion | Statistical Comparison of Ligament Sectioning | Portion of Motion Affected |
---|---|---|
Wrist flexion-extension | All motion except extreme extension | |
I ≠ C4 | ||
C1 ≠ C4 | Wrist flexion | |
C2 ≠ C4 | Wrist flexion | |
Wrist radial-ulnar deviation | I ≠ C4 | Nearly all of wrist motion |
C1 ≠ C4 | Nearly all of wrist motion | |
C2 ≠ C4 | Nearly all of wrist motion | |
I ≠ C3 | Wrist ulnar deviation | |
C1 ≠ C3 | Wrist ulnar deviation |
I, intact specimen; C1, ST ligament cut; C2, ST and SLIL ligaments cut; C3, ST, SLIL, and RSC ligaments cut; C4, ST, SLIL, and RSC ligaments cut plus 1,000 cycles of motion; ≠, statistically different from each other.