TY - CHAP M1 - Book, Section TI - Carpal and Carpometacarpal Dislocations A1 - Breed, Meghan A1 - Fitch, Robert Warne A2 - Knoop, Kevin J. A2 - Stack, Lawrence B. A2 - Storrow, Alan B. A2 - Thurman, R. Jason Y1 - 2021 N1 - T2 - The Atlas of Emergency Medicine, 5e 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. SN - PB - McGraw-Hill CY - New York, NY Y2 - 2024/10/09 UR - accessemergencymedicine.mhmedical.com/content.aspx?aid=1181041931 ER -