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Lunate Dislocation

Lunate Dislocation is a topic covered in the 5-Minute Emergency Consult.

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Basics

Description

  • Dislocation of the lunate relative to the radius and distal row of metacarpals, most are volar but can be dorsal.
  • Usually from high-energy hyperextension with ulnar deviation of the wrist.

Etiology

  • Implies disruption of all 4 perilunate ligaments and radiocarpal ligament (Mayfield classification, stage IV)
  • In volar dislocations, median nerve injury occurs in the carpal tunnel.
  • Associated fractures of the radial styloid, scaphoid, capitate, and triquetrum are common and, if present, should raise suspicion of an occult perilunate ligamentous injury.

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Citation

Rosen, Peter, et al., editors. "Lunate Dislocation." 5-Minute Emergency Consult, 5th ed., Lippincott Williams & Wilkins, 2016. Emergency Central, emergency.unboundmedicine.com/emergency/view/5-Minute_Emergency_Consult/307164/all/Lunate_Dislocation.
Lunate Dislocation. In: Rosen P, Shayne P, Barkin AZ, et al, eds. 5-Minute Emergency Consult. 5th ed. Lippincott Williams & Wilkins; 2016. https://emergency.unboundmedicine.com/emergency/view/5-Minute_Emergency_Consult/307164/all/Lunate_Dislocation. Accessed April 25, 2019.
Lunate Dislocation. (2016). In Rosen, P., Shayne, P., Barkin, A. Z., Wolfe, R. E., Hayden, S. R., Barkin, R. M., & Schaider, J. J. (Eds.), 5-Minute Emergency Consult. Available from https://emergency.unboundmedicine.com/emergency/view/5-Minute_Emergency_Consult/307164/all/Lunate_Dislocation
Lunate Dislocation [Internet]. In: Rosen P, Shayne P, Barkin AZ, Wolfe RE, Hayden SR, Barkin RM, Schaider JJ, editors. 5-Minute Emergency Consult. Lippincott Williams & Wilkins; 2016. [cited 2019 April 25]. Available from: https://emergency.unboundmedicine.com/emergency/view/5-Minute_Emergency_Consult/307164/all/Lunate_Dislocation.
* Article titles in AMA citation format should be in sentence-case
TY - ELEC T1 - Lunate Dislocation ID - 307164 ED - Rosen,Peter, ED - Shayne,Philip, ED - Barkin,Adam Z, ED - Wolfe,Richard E, ED - Hayden,Stephen R, ED - Barkin,Roger M, ED - Schaider,Jeffrey J, BT - 5-Minute Emergency Consult UR - https://emergency.unboundmedicine.com/emergency/view/5-Minute_Emergency_Consult/307164/all/Lunate_Dislocation PB - Lippincott Williams & Wilkins ET - 5 DB - Emergency Central DP - Unbound Medicine ER -