A cadaveric study on anatomical variations of the Sural nerve in the foot & ankle with relevance to surgical approaches

Volume 8 | Issue 1 | Jan – Feb 2020 | Page: 9- 13  | Naganbhushan somayaji shiroor, Krishnaprasad P.R, Sandesh Madi, Mohandas Rao, Sapna Marpalli, Ashwini L SK

Authors: Naganbhushan somayaji shiroor [1], Krishnaprasad P.R [1], Sandesh Madi , Mohandas Rao [1],Sapna Marpalli [1], Ashwini L SK [1]

[1] Department of Orthopaedics, Kasturba Medical College,MAHE University, India.

Address of Correspondence

Dr. Krishnaprasad P.R,
Kasturba Medical College,MAHE University India.
E-mail: orthokrish@gmail.com


Methods: Variations of the sural nerve were observed during the routine dissection of human cadavers. A total of 50 lower limbs were dissected and variations of sural nerve course, branching and distribution in the leg and foot were documented.
Results: On the basis of formation and course, the sural nerve in the back of the leg was divided into six types and in the foot into two types.
Conclusion: Awareness regarding the anatomical variations of the sural nerve becomes clinically relevant especially when Ankle is surgically approached posterolaterally for fixation of posterior malleolar fractures, high lateral malleolar fractures in pronation injuries of ankle and in foot, calcaneal fracture exposures in both classical extensile and sinius tarsi approach and in surgical exposure of talus both from medial and lateral exposures and for corrective osteotomies of calcaneum, Lisfranc fracture fixation and for various osteotomies of midfoot and forefoot.
Key words: Medial sural cutaneous nerve, Lateral sural cutaneous nerve, Anatomical variations, Cadver dissection, Foot and Ankle surgical approaches.


In our study, 4% (Two specimens) showed termination of sural nerve supplying the skin of adjacent sides of the third, fourth and fifth toes in addition to the lateral side of 5th toe.
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How to Cite this article: Shiroor A, Krishnaprasad P.R, Madi S, Rao M, Marpalli S, Ashwini L S | A cadaveric study on anatomical variations of the Sural nerve in the foot & ankle with relevance to surgical approaches | Journal Of Karnataka Orthopaedic Association | Jan-Feb 2020; 8(1):9-13.

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