Stenosing Tenosynovitis (Trigger Finger) on Physical Exam Stenosing tenosynovitis occurs when inflammation narrows the space within the sheath that surrounds the tendon in the affected finger. If trigger finger is severe, your finger may become locked in a bent. #Stenosing #Tenosynovitis #Trigger #Finger #PhysicalExam #clinical #video #msk #rheumatology