Journal List > J Korean Foot Ankle Soc > v.22(3) > 1101133

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

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.

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References

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jkfas-22-131f1.tif
Figure 1.
A 52-year-old man with right foot lateral pain anteroposterior radiographs of right ankle show hypertrophied peroneal tubercle of calcaneus (arrow).
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jkfas-22-131f2.tif
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).
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jkfas-22-131f3.tif
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.
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jkfas-22-131f4.tif
Figure 4.
Excised hypertrophied peroneal tubercle.
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