Updated: 11/4/2021

Extensor digitorum longus (L5)

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Questions
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100%
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Evidence
1
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Videos / Pods
1
Topic
https://upload.orthobullets.com/topic/10080/images/extensor-digitorum-longus.jpg
Summary

Origin Lateral tibial condyle, proximal 3/4 of anterior fibula, upper part of interosseous membrane, fascia cruris, and anterior intermuscular septum
Insertion Splits into 4 tendon slips after inferior extensor retinaculum, each of which insert on dorsum of middle and distal phalanges as part of extensor expansion complex
Action Extend toes 2 - 5 and dorsiflexes ankle
Innervation Deep peroneal nerve (L4, L5, S1) (L4, L5, S1) q
Arterial Supply Anterior tibial artery





 

 

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Average 4.7 of 3 Ratings

Questions (1)

(OBQ04.53) Injury to the deep peroneal nerve would result in which of the following?

QID: 1383
1

Weakness of hindfoot eversion

7%

(308/4402)

2

Weakness of hindfoot inversion

2%

(73/4402)

3

Weakness of great toe extension

85%

(3738/4402)

4

Weakness of great toe flexion

3%

(140/4402)

5

Weakness of ankle plantarflexion

2%

(108/4402)

L 1 C

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Evidence (1)
VIDEOS & PODCASTS (2)
EXPERT COMMENTS (3)
Private Note