The lateral dorsal cutaneous nerve is the continuation/terminal sensory branch of the sural nerve, and is ultimately derived from the 1st sacral nerve (S1). It passes distally along the lateral part of the dorsum of foot. It gives rise to the lateral dorsal digital nerve of the 5th toe, and sometimes also the medial dorsal digital nerve of the 5th toe as well as the lateral dorsal digital nerve of the 4th toe[1] (thus replacing branches of the intermediate dorsal cutaneous nerve[2]).
| Lateral dorsal cutaneous nerve | |
|---|---|
 Diagram of the segmental distribution of the cutaneous nerves of the sole of the foot. | |
 Cutaneous nerves of the right lower extremity. Front and posterior views. | |
| Details | |
| From | sural nerve |
| Identifiers | |
| Latin | nervus cutaneus dorsalis lateralis |
| TA98 | A14.2.07.063 |
| TA2 | 6587 |
| FMA | 44694 |
| Anatomical terms of neuroanatomy | |
Anatomy
editOrigin
editThe sural branch becomes the lateral dorsal cutaneous nerve as it winds around[1]/underneath[3] the lateral malleolus.[1][3]
Anastomoses
editIt anastomoses with the intermediate dorsal cutaneous nerve.[1]
Clinical significance
editThe course of this nerve influences the surgical approach to fixation of fractures of the fifth metatarsal, as the most direct surgical approach is at risk of damaging it.[4]
Additional images
edit-
Cutaneous nerves of the right lower extremity. Front and posterior views.
References
edit- ^ a b c d "nerf cutané dorsal latéral l.m. - Dictionnaire médical de l'Académie de Médecine". www.academie-medecine.fr. Retrieved 2024-05-23.
- ^ "nerf cutané dorsal intermédiaire l.m. - Dictionnaire médical de l'Académie de Médecine". www.academie-medecine.fr. Retrieved 2024-05-23.
- ^ a b Steele, Robert (November 2021). "Anatomy of the sural nerve complex: Unaccounted anatomic variations and morphometric data". Annals of Anatomy. 238: 151742. doi:10.1016/j.aanat.2021.151742. PMID 33932499.
- ^ Fansa, AM; Smyth, NA; Murawski, CD; Kennedy, JG (August 2012). "The lateral dorsal cutaneous branch of the sural nerve: clinical importance of the surgical approach to proximal fifth metatarsal fracture fixation". The American Journal of Sports Medicine. 40 (8): 1895–8. doi:10.1177/0363546512448320. PMID 22679294. S2CID 40289788.
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