RT Book, Section
A1 Breed, Meghan
A1 Fitch, Robert Warne
A2 Knoop, Kevin J.
A2 Stack, Lawrence B.
A2 Storrow, Alan B.
A2 Thurman, R. Jason
SR Print(0)
ID 1181041931
T1 Carpal and Carpometacarpal Dislocations
T2 The Atlas of Emergency Medicine, 5e
YR 2021
FD 2021
PB McGraw-Hill
PP New York, NY
SN 9781260134940
LK accessemergencymedicine.mhmedical.com/content.aspx?aid=1181041931
RD 2024/10/09
AB Carpal  and  carpometacarpal  dislocations  are  serious  wrist  injuries  usually  occurring  from  hyperextension.  Patients  complain  of  decreased  range  of  motion,  pain,  swelling,  and  ecchymosis.  Lunate  dislocation  can  occur  in  a  palmer  or  dorsal  position  with  the  lunate  displaced  relative  to  the  other  carpals  (“spilled  teacup  sign”).  The  normal  lunoradial  relationship  is  disrupted,  and  the  median  nerve  is  commonly  involved.  If  the  lunoradial  articulation  is  intact  and  the  other  carpal  bones  are  dislocated  relative  to  the  lunate,  it  is  termed  a  perilunate  dislocation.