Carpal Instability
A 35-year-old man presents with 6 months of ulnar-sided wrist pain following a fall onto an outstretched hand. Pain is aggravated by activities requiring wrist rotation and gripping. Examination reveals tenderness over the lunotriquetral interval with positive ballottement test (Reagan shuck test). Standard radiographs appear normal. Regarding lunotriquetral instability and clinical assessment:
Mark each as TRUE or FALSE
The Reagan shuck test (LT ballottement test) is performed by stabilizing the lunate with one hand wh...
The lunotriquetral interosseous ligament (LTIL) has three components: dorsal (thin), membranous (cen...
Lunotriquetral instability is more common than scapholunate instability; plain radiographs typically...
In LT dissociation, the lunate tends to follow the scaphoid into flexion, creating a VISI (volar int...
Other clinical tests include the Kleinman shear test (direct pressure over the LT joint dorsally wit...
Answer the questions to see explanations
Click T (True) or F (False) for each option