Ultrasonography in Pronator Teres Syndrome: Dynamic Examination and Guided Hydrodissection
Ke‐Vin Chang, Wei‐Ting Wu, Po‐Cheng Hsu, Yi‐Chiang Yang, Levent Özçakar
Abstract
Dear Editor, A 25-year-old male was seen for pain and weakness in his right hand (first and second fingers). He reported that he had strained his right forearm half a year ago while lifting a heavy object. He added that after initial severe pain over the proximal one-third of the forearm lasting for 2 days, the pain had gradually decreased but that the weakness had been overwhelming. The initial diagnosis was brachialis muscle strain. Physical therapy (ultrasound diathermy and strengthening exercises) had not improved his complaints. He denied any sensory deficit over the right palm and fingers, and the medical history was otherwise noncontributory. Physical examination revealed weakness of the pincer movement of the right thumb and index fingers (grade 4 on the manual muscle testing grading system). An ultrasound examination was then performed in the same hospital as the initial visit. The transducer was first placed over the right...