Objective: Pectoralis minor syndrome (PMS) is a neurovascular disorder affecting the upper extremity. In the present study, the demographic and clinical features of patients diagnosed as PMS were examined, as well as cases of concomitant subacromial impingement syndrome (SIS).
Methods:A retrospective trial was conducted with 12 patients with the diagnosis of PMS according to a pectoralis minor muscle (PMM) block test. The PMM block was performed under the guidance of ultrasonography.
Results:Of the 12 PMS patients evaluated, 83% had a complaint of pain, 58.3% had paresthesia, and 16.6% had swelling of the hand. A physical examination revealed that 58.3% of the patients had tenderness at the biceps tendon, 16.6% had subacromial tenderness, and 16.6% had tenderness at the acromioclavicular joint. In 66.6% patients, subacromial impingement tests were positive, and 33.3% of them had a positive subacromial injection test (SIT).