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Review Question - QID 7791

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QID 7791 (Type "7791" in App Search)
Figure 3 shows an arthroscopic view of the radiocarpal joint from the 3-4 portal, looking volarly and radially (Sc=scaphoid, R=Radius). What structure is marked by the asterisk?
  • A

Radioscaphocapitate ligament

86%

1219/1414

Scapholunate ligament

2%

32/1414

Palmar oblique ligament

6%

88/1414

Dorsal intercarpal ligament

1%

17/1414

Triangular fibrocartilage complex (TFCC)

4%

52/1414

  • A

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The radioscaphocapitate ligament is a volar capsular structure running obliquely from the radial styloid to the scaphoid waist, ultimately inserting on the proximal radial aspect of the capitate. The radioscaphocapitate ligament is important in preventing ulnar translocation of the carpus. The scapholunate ligament is located intra-articularly, between the scaphoid and lunate. The dorsal intercarpal ligament is a dorsal structure, and not visible during routine wrist arthroscopy. The palmar oblique ligament connects the first and second metacarpal bases. The TFCC is visible during wrist arthroscopy between the radius and ulna.

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