Impingement syndrome

Picture Courtesy: Nuffield Orthopaedic Centre NHS Trust
https://www.ouh.nhs.uk/shoulderandelbow/information/documents/
A4ShoulderImpingeAppendix5.pdf

A classic presentation is of a painful arc on movement when the arm is lifted out to the side. The movement is painless up to 60 degrees and after 120 degrees.

Picture Courtesy: Nuffield Orthopaedic Centre NHS Trust
https://www.ouh.nhs.uk/shoulderandelbow/information/documents/
A4ShoulderImpingeAppendix5.pdf