Maigne J Y, Maigne R, Guérin-Surville H
Laboratoire d'Anatomie, UER Pitié-Salpetrière, Université Paris V, France.
Surg Radiol Anat. 1991;13(2):109-12. doi: 10.1007/BF01623882.
The authors describe the distribution of the medial branches of the upper thoracic dorsal rami (T1 to T5 levels). At each level, after travelling through the erector spinae, they become superficial, and reach the apex of the spinous process of the corresponding vertebra. They then spread out laterally, innervating the skin. They can occasionally be compressed by paravertebral tendons, and this possibly contributes to certain forms of dorsal pain. Anastomosis of the dorsal cutaneous branch of the second thoracic nerve (T2) with the descending lateral branch of the accessory nerve has been observed. Its presence could explain the occasional clinical situations where there is no resultant paralysis from accidental surgical section of the latter nerve.
作者描述了胸上段背侧支（T1至T5节段）内侧支的分布情况。在每个节段，它们穿出竖脊肌后变得表浅，到达相应椎体棘突的尖端。然后向外侧散开，支配皮肤。它们偶尔会被椎旁肌腱压迫，这可能是某些形式背痛的原因。已观察到第二胸神经（T2）的背侧皮支与副神经的降外侧支之间存在吻合。其存在可以解释偶尔出现的临床情况，即副神经意外手术切断后未导致瘫痪。
