TY  - CHAP
M1  - Book, Section
TI  - Zygoma Fractures
A1  - Stark, Christopher L.
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  - The  zygoma  bone  has  two  major  components,  the  zygomatic  arch  and  the  body.  The  arch  forms  the  inferior  and  lateral  orbit,  and  the  body  forms  the  malar  eminence  of  the  face.  Direct  blows  to  the  arch  can  result  in  isolated  arch  fractures.  These  present  clinically  with  pain  on  opening  the  mouth  secondary  to  the  insertion  of  the  temporalis  muscle  at  the  arch  or  impingement  on  the  coronoid  process.  More  extensive  trauma  can  result  in  the  “tripod  fracture,”  which  consists  of  fractures  through  three  structures:  1)  the  frontozygomatic  suture;  2)  the  maxillary  process  of  the  zygoma  including  the  inferior  orbital  floor,  inferior  orbital  rim,  and  lateral  wall  of  the  maxillary  sinus;  and  3)  the  zygomatic  arch.  Clinically,  patients  present  with  a  flattened  malar  eminence  and  edema  and  ecchymosis  to  the  area,  with  a  palpable  step-off  on  examination.  Injury  to  the  infraorbital  nerve  may  result  in  infraorbital  paresthesia,  and  gaze  disturbances  may  result  from  injury  to  orbital  contents.  Subcutaneous  emphysema  may  be  present.  
SN  - 
PB  - McGraw-Hill
CY  - New York, NY
Y2  - 2024/04/18
UR  - accessmedicine.mhmedical.com/content.aspx?aid=1181038053
ER  -