Sural Nerve Entrapment and Tenosynovitis of Peroneus Longus by Hypertrophied Peroneal Tubercle: A Case Report

Dong Joo Lee; Jun Young Choi; Jin Soo Suh

doi:10.14193/jkfas.2018.22.3.131

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Lee, Choi, and Suh: Sural Nerve Entrapment and Tenosynovitis of Peroneus Longus by Hypertrophied Peroneal Tubercle: A Case Report

Case Report

J Korean Foot Ankle Soc 2018;22(3):131-134.

Published online: 20 September 2018

DOI: https://doi.org/10.14193/jkfas.2018.22.3.131

Sural Nerve Entrapment and Tenosynovitis of Peroneus Longus by Hypertrophied Peroneal Tubercle: A Case Report

Dong Joo Lee, Jun Young Choi, Jin Soo Suh

Department of Orthopedic Surgery, Ilsan Paik Hospital, Inje University College of Medicine, Goyang, Korea

Corresponding Author: Jin Soo Suh Department of Orthopedic Surgery, Inje University Ilsan Paik Hospital, 170 Juhwa-ro, Ilsanseo-gu, Goyang 10380, Korea Tel: 82-31-910-7968, Fax: 82-31-910-7967, E-mail: sjs0506@paik.ac.kr ORCID: https://orcid.org/0000-0002-6830-9149

Received 10 July 2018 Revised 16 August 2018 Accepted 27 August 2018

This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/3.0) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

A hypertrophied peroneal tubercle can present as a bony prominence at the lateral aspect of the foot and a peroneal tenosynovitis or tear. We report a case of a 52-year-old man complaining of lateral foot tingling pain and numbness. The sural nerve entrapment and peroneus longus tenosynovitis by hypertrophied peroneal tubercle were confirmed. Good results were obtained after excision of the hypertrophied peroneal tubercle and sural nerve release.

Keywords: Calcaneus, Peroneal tubercle, Sural nerve, Peroneus longus tendon, Tenosynovitis

References

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Figure 1.

A 52-year-old man with right foot lateral pain anteroposterior radiographs of right ankle show hypertrophied peroneal tubercle of calcaneus (arrow).

Figure 2.

Using magnetic resonance imaging. (A) T1-weighted axial image shows hypertrophied peroneal tubercle of calcaneus (arrow). (B) T2-weighted coronal image shows focal edema (arrow) and thickening of branch of sural nerve (asterisks). (C) T2-weighted sagittal image shows tenosynovitis of peroneus longus and fluid collection at the proximal level (arrows).

Figure 3.

(A) Intraoperative clinical photographs show a branch of sural nerve neurolysis (arrow) and a branch of small saphenous vein (arrowhead). (B) In-flammed peroneus longus tendon (arrow). (C) Postoperative radiograph shows complete excision of peroneal tubercle.

Figure 4.

Excised hypertrophied peroneal tubercle.

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