Lunotriquetral Ballottement Test
Lunotriquetral Ballottement Test also called Reagan Test, it is used to evaluate the integrity of the lunotriquetral ligament.
- Examiner secures the pisotriquetral unit with the thumb and index finger of one hand and the lunate with the other hand,
- anterior and posterior stresses are placed on the lunotriquetral joint.
- Lunotriquetral Ballottement Test is positive when there are increased laxity and accompanying pain.
- Sensitivity: 64 %
- Specificity: 44 %
- Lunotriquetral instability can result from trauma involving hyperpronation or hyperextension.
- Patients report pain in the wrist. Tenderness to palpation over the triquetrolunate joint and pain with motion can be provoked, but pronation and supination do not cause any pain.
- The injury does not necessarily involve loss of strength. Patients occasionally describe the instability as a clicking that occurs during wrist motion.