Table 1. Mean ligament measurements (mean and SD measurements in mm).
| Horizontal (from sigmoid notch) | Vertical (from joint line) | |||
|---|---|---|---|---|
| Ulnar bordera to Radial bordera | Widthb | Ulnar borderc | Radial borderc | |
| Lister tubercle | 19.6 (± 1.8) to 24.2 (± 2.2) | |||
| DRC | 6.2 (± 2.6) to 19.2 (± 1.7) | 13.1 (± 2.9) | 5.3 (± 1.4) | 6.5 (± 1.9) |
| RSC | 32.3 (± 5.0) dorsal to 31.5 (± 5.5) volard | 7.4 (± 1.4) | 4.8 (± 1.4) | 4.1 (± 0.9) |
| LRL | 21.4 (± 2.4) to 30.5 (± 3.0) | 9.2 (± 2.3) | 5.3 (± 0.6) | 6.2 (± 1.2) |
| SRL | 5.2 (± 3.3) to 15.0 (± 3.3) | 9.8 (± 1.4) | 3.9 (± 1.3) | 4.4 (± 1.0) |
Abbreviations: DRC, dorsal radiocarpal ligament; LRL, the long radiolunate ligament; RSC, the radioscaphocapitate ligament; SRL, the short radiolunate ligament.
a
Measured distance (mm) from sigmoid notch to the ulnar border (A in Fig. 2) and radial border (B in Fig. 2) of the ligament origin.
b
Measured width (mm) of the ligament.
c
Measured distance (in mm) from articular surface to the ulnar border (C in Fig. 2) and radial border (D in Fig. 2) of the ligament origin.
d
Note the RSC passed from dorsal to volar around the radial styloid.