Wrist Pathology
A 45-year-old right-hand-dominant mechanic presents with progressive right wrist pain and stiffness over 3 years. He recalls a wrist injury at age 25 that was never treated. Examination shows reduced wrist flexion-extension arc (60° total), tenderness at the radial styloid and scapholunate interval, and positive Watson shift test. Radiographs show scaphoid nonunion with humpback deformity, arthritic changes at the radioscaphoid joint, and preserved capitolunate articulation. Regarding SNAC (Scaphoid Nonunion Advanced Collapse) wrist:
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SNAC wrist results from untreated scaphoid nonunion leading to predictable arthritic progression; St...
The arthritic pattern in SNAC wrist is explained by altered carpal kinematics following scaphoid non...
SNAC wrist arthritis begins at the capitolunate joint and progresses proximally; the radial styloid ...
This patient with Stage II SNAC (radioscaphoid and scaphocapitate arthritis with preserved capitolun...
For Stage I SNAC, options include radial styloidectomy alone or with scaphoid reconstruction if nonu...
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Click T (True) or F (False) for each option