1.4K views · 33 reactions | THE SHOULDER SHRUG TEST TO RULE OUT OA OR FROZEN SHOULDER Not sure if your patient's painful shoulder is due to osteoarthritis or if it is a Frozen Shoulder and you want a test to rule out those two conditions? Then the Shrug Test or Shrug Sign can help with a sensitivity of 91% and a specificity of 57% for the sign in OA, as well as a sensitivity of 95% and a specificity of 50% in the diagnosis of a frozen shoulder (Jia et al. 2008). | Physiotutors | Facebook