Loukas M, Louis R G, Merbs W
Department of Anatomical Sciences, St. George's University, Grenada, West Indies.
Folia Morphol (Warsz). 2006 Aug;65(3):232-5.
Anatomical variations in the musculature of the spine have the potential to cause functional and postural abnormalities, which in turn could lead to chronic myofascial and skeletal pain. We present a unilateral case of a 71-year-old Caucasian female in which the left levator scapulae muscle gave rise to an accessory head that inserted, by way of a flat aponeurotic band, to the ligamentum nuchae, the tendon of the rhomboideus major and the superior aspect of the serratus posterior superior muscle. The innervation was provided by a branch of the dorsal scapular nerve. By exerting unilateral traction on the vertebrae and surrounding musculature, this unusual variation might have resulted in clinical consequences including scoliosis and movement abnormalities of the head and neck as well as myofascial pain syndrome.
脊柱肌肉组织的解剖变异有可能导致功能和姿势异常，进而可能引发慢性肌筋膜和骨骼疼痛。我们报告一例71岁白种女性的单侧病例，其左侧肩胛提肌产生一个副头，该副头通过一条扁平的腱膜带附着于项韧带、大菱形肌腱和后上锯肌上缘。其神经支配由肩胛背神经的一个分支提供。通过对椎骨和周围肌肉组织施加单侧拉力，这种不寻常的变异可能导致包括脊柱侧弯、头颈部运动异常以及肌筋膜疼痛综合征在内的临床后果。
