• Se Won Lee, Timothy Tiu, Jeremy Roberts, Brian Lee, Matthew N Bartels, and Mooyeon Oh-Park.
• From the Department of Physical Medicine and Rehabilitation, Montefiore Medical Center, Albert Einstein College of Medicine, Bronx, New York (SWL, TT, BL, MNB); Hofstra Northwell School of Medicine, Hofstra University, Hempstead, New York (JR); and Kessler Institute for Rehabilitation, Kessler Foundation, Department of Physical Medicine and Rehabilitation, Rutgers New Jersey Medical School, Neward, New Jersey (MO-P).
• Am J Phys Med Rehabil. 2018 Jan 1; 97 (1): 56-61.

ObjectiveThe aims of the study were to assess the overall reduction of pain in patients undergoing ultrasound-guided shoulder injections and to characterize the preinjection point-of-care ultrasound findings and use of clinical services postinjection including the use of magnetic resonance imaging and surgeries.DesignData of 172 patients who underwent ultrasound-guided subacromial subdeltoid injection or glenohumeral joint injection were reviewed for preinjection point-of-care ultrasound findings, change in pain intensity at 2 mos from baseline, and use of care at 6 mos' postinjection. Pain intensity was measured by the numeric rating scale and a dichotomous report of global impression of significant improvement in pain. Responders were defined as those with 50% or more reduction in numeric rating scale or those with global impression of 50% or more improvement.ResultsThere were 141 responders among the 172 patients analyzed. Full-thickness rotator cuff tears were higher in the ultrasound-guided subacromial subdeltoid injection group when compared with the glenohumeral joint injection group (P = 0.038) and abnormal bicipital tendon findings higher in the glenohumeral joint injection group (P = 0.016). There were no significant differences in specific abnormal U findings between responders versus nonresponders. Twelve patients had a shoulder magnetic resonance imaging and four patients underwent operative interventions after the injection.ConclusionsOverall pain reduction after ultrasound-guided shoulder injections was favorable in the short term. There was no specific preinjection point-of-care ultrasound findings associated with clinical pain reduction after injection. Additional imaging and operative intervention after ultrasound-guided shoulder injections seemed to be relatively low.

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