RT Book, Section
A1 Parks, Edward (Ted)
SR Print(0)
ID 1147244172
T1 The Hip
T2 Practical Office Orthopedics
YR 2017
FD 2017
PB McGraw-Hill Education
PP New York, NY
SN 9781259642869
LK accessmedicine.mhmedical.com/content.aspx?aid=1147244172
RD 2024/04/25
AB The  differential  diagnosis  for  a  patient  presenting  in  an  outpatient  clinic  with  hip  pain  is  relatively  narrow.  It’s  been  said  that  when  you  hear  hoofbeats,  think  horses,  not  zebras.  In  other  words,  those  hoofbeats  you’re  hearing  are  more  likely  to  be  coming  from  common  things  (horses)  than  uncommon  things  (zebras).  That  makes  good  sense  and  is  practical,  but  just  to  be  safe,  we  will  cover  both  the  “horses”  and  the  “zebras”  in  this  chapter.  The  horses  (common  conditions)  are  hip  arthritis,  greater  trochanteric  bursitis,  and  hip  pain  that  is  actually  pain  radiating  down  from  the  lumbar  spine.  These  three  hip  conditions  account  for  over  90%  of  the  hip  pain  you  are  likely  to  encounter  in  an  outpatient  setting.  The  occasional  patient  with  avascular  necrosis  (AVN)  or  a  form  of  femoral-acetabular  impingement  (FAI),  make  up  the  other  10%—these  are  the  zebras.