Peroneus digiti minimi is a small anomalous peroneal muscle present in approximately 21% of individuals. It runs from the lower fibula to the fifth toe, providing additional eversion force.
| Origin | Lower lateral fibula |
|---|---|
| Insertion | Dorsal surface of the fifth toe proximal phalanx |
| Nerve Supply | Superficial peroneal nerve |
| Blood Supply | Peroneal artery |
| Actions | Extends and everts the fifth toe |
|---|
Peroneus digiti minimi can compress the sural nerve or superficial peroneal nerve when hypertrophied. It is identified in anatomical dissections of the lateral leg and may be confused with peroneus tertius.
Not palpable individually — identified at surgery.
Anomalous peroneus digiti minimi compressing the sural nerve producing lateral foot sensory symptoms.
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