Isolated Injury of the Axillary Nerve Branch to Teres Minor Muscle
Following After Traumatic Posterior Instability of Shoulder

J Korean Neurol Assoc > Volume 28(4); 2010 > Article

Journal of the Korean Neurological Association 2010;28(4): 319-322.

외상성 후방 견관절 불안정성에 의한 겨드랑신경 작은원근 가지 단독 손상

양희준, 김준순 김지은 안석원 a 김성민 성정준 이광우

서울대학교 의과대학 신경과학교실, 중앙대학교 의과대학 신경과학교실

Isolated Injury of the Axillary Nerve Branch to Teres Minor Muscle Following After Traumatic Posterior Instability of Shoulder

Hui-Jun Yang

Department of Neurology, Seoul National University College of Medicine

Abstract

We describe a case of a 23-year-old man who presented with posterior instability of the right shoulder following trauma. Focal neuropathy of the axillary nerve branch to the teres minor muscle was diagnosed electrophysiologically. A shoulder magnetic resonance image revealed fatty atrophy of the teres minor muscle with sparing of the deltoid, supraspinatus, infraspinatus, and subscapularis muscles. To our knowledge, this is the first case of selective injury of the branch of the axillary nerve to the teres minor muscle to be described in Korea. Key Words: Axillary nerve injury, Teres minor muscle, Nerve conduction study