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https://hdl.handle.net/2440/6717
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Type: | Journal article |
Title: | Surgical anatomy of the sural and superficial fibular nerves with an emphasis on the approach to the lateral malleolus |
Author: | Solomon, L. Ferris, L. Tedman, R. Henneberg, M. |
Citation: | Journal of Anatomy, 2001; 199(6):717-723 |
Publisher: | Cambridge Univ Press |
Issue Date: | 2001 |
ISSN: | 0021-8782 1469-7580 |
Statement of Responsibility: | L. B. Solomon, L. Ferris, R. Tedman and M. Henneberg |
Abstract: | The aim of this study was to investigate the risk and to analyse the significance of laceration of the sural and superficial fibular nerves during the surgical approach to the lateral malleolus. The sural and the superficial fibular nerves, and their branches were dissected under ×3 magnifying lenses in 68 embalmed leg-ankle-foot specimens. The specimens were measured, drawn and photographed. In 35% of specimens the superficial fibular nerve branched before piercing the crural fascia, and in all these specimens the medial dorsal cutaneous nerve of the foot was located in the anterior compartment while the intermediate dorsal cutaneous nerve of the foot was located in the lateral compartment. In 35% of specimens the intermediate dorsal cutaneous nerve of the foot was absent or did not innervate any toe. The deep part of the superficial fibular nerve was in contact with the intermuscular septum. Its superficial part was parallel with the lateral malleolus when the nerve pierced the fascia more proximally and oblique to the lateral malleolus when the nerve pierced the fascia distally. In one case the intermediate dorsal cutaneous nerve of the foot was in danger of laceration during a subcutaneous incision to the lateral malleolus. In 7 cases (10%) the sural nerve overlapped or was tangent to the tip of the malleolus. Malleolar nerve branches were identified in 76% of the cases (in 28% from both sources). The sural nerve supplies the lateral 5 dorsal digital nerves in 40% of cases. Our study indicates that during the approach to the lateral malleolus there is a high risk of laceration of malleolar branches from both the sural and the superficial fibular nerves. There is less risk of damage to the main trunk of these nerves, but the 10% chance of laceration of sural nerve at the tip of the malleolus is significant. As the sural nerve supplies the superficial innervation to the lateral half of the foot and toes in 40% of cases, the risk of its laceration is even more important than indicated by the common anatomical teaching. |
Keywords: | Foot Toes Ankle Joint Peroneal Nerve Sural Nerve Humans Ankle Injuries Intraoperative Complications Risk Assessment |
Description: | The definitive version is available at www.blackwell-synergy.com |
Rights: | © 2001 Anatomical Society of Great Britain and Ireland |
DOI: | 10.1046/j.1469-7580.2001.19960717.x |
Published version: | http://dx.doi.org/10.1046/j.1469-7580.2001.19960717.x |
Appears in Collections: | Aurora harvest 5 Orthopaedics and Trauma publications |
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