Extensor Digitorum Brevis: Difference between revisions
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<div class="editorbox"> '''Original Editor '''- [[User:User Name|Ahmed Nasr]] '''Top Contributors''' - {{Special:Contributors/{{FULLPAGENAME}}}}</div> | <div class="editorbox"> '''Original Editor '''- [[User:User Name|Ahmed Nasr]] '''Top Contributors''' - {{Special:Contributors/{{FULLPAGENAME}}}}</div> | ||
== Origin == | == Origin == | ||
[[File:Extensor digitorum brevis.png|thumb|340x340px]]Extensor Digitorum Brevis is one of the intrinsic muscles on the dorsum of the [[Ankle and Foot|foot]]. It arises from the upper and lateral surface of the calcaneus, the floor of tarsal sinus, the talocalcaneal ligament, and the stem of the inferior extensor retinaculum. <ref>Anatomy next. Extensor digitorium brevis. Available from<nowiki/>https://www.anatomynext.com/extensor-digitorum-brevis/ accessed at (26july 2019)</ref><ref name=":0">Keith L. , Anne M. R . Clinically Oriented Anatomy . philidephia : Lippincott Williams & Wilkins.Feb 13, 2013</ref> | [[File:Extensor digitorum brevis.png|thumb|340x340px]]Extensor Digitorum Brevis (EDB) is one of the intrinsic muscles on the dorsum of the [[Ankle and Foot|foot]]. It arises from the upper and lateral surface of the calcaneus, the floor of tarsal sinus, the talocalcaneal ligament, and the stem of the inferior extensor retinaculum. <ref>Anatomy next. Extensor digitorium brevis. Available from<nowiki/>https://www.anatomynext.com/extensor-digitorum-brevis/ accessed at (26july 2019)</ref><ref name=":0">Keith L. , Anne M. R . Clinically Oriented Anatomy . philidephia : Lippincott Williams & Wilkins.Feb 13, 2013</ref> | ||
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== Blood Supply == | == Blood Supply == | ||
The extensor digitorum brevis muscle has a well-developed vascular network. It is supplied proximally by the branches of fibular artery and branches of anterior tibial artery. Distally it is supplied by the dorsalis pedis artery and its branches. <ref>Moore KL, Dalley AF, Agur AM. Clinically oriented anatomy. Lippincott Williams & Wilkins; 2013 Feb 13.</ref> | The extensor digitorum brevis muscle has a well-developed vascular network. It is supplied proximally by the branches of fibular artery and branches of anterior tibial artery. Distally it is supplied by the [[Dorsalis Pedis Artery|dorsalis pedis artery]] and its branches. <ref>Moore KL, Dalley AF, Agur AM. Clinically oriented anatomy. Lippincott Williams & Wilkins; 2013 Feb 13.</ref> | ||
== Nerve Supply == | == Nerve Supply == | ||
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{{#ev:youtube|v=GQvjwpXdQ38}}<ref>nabil ebraheim. Extensor Digitorum Brevis - Everything You Need To Know - Dr. Nabil Ebraheim. Available from: https://www.youtube.com/watch?v=GQvjwpXdQ38 [last accessed 30/1/2018]</ref> | {{#ev:youtube|v=GQvjwpXdQ38}}<ref>nabil ebraheim. Extensor Digitorum Brevis - Everything You Need To Know - Dr. Nabil Ebraheim. Available from: https://www.youtube.com/watch?v=GQvjwpXdQ38 [last accessed 30/1/2018]</ref> | ||
== Clinical Relevance == | |||
* EDB muscle flap can be used for small defects and infection prevention of bones and joints following traumatic injuries. The extensor digitorum brevis muscle flap proves to be a dependable option which can be attributed to the muscle tissue's inherent resistance to infections, its capacity for effective antibiotic distribution, and its acceptable donor-site morbidity. <ref>Woussen A, Feuvrier D, Woussen É, Fageot J, Sergent P, Leclerc G, Obert L, Pluvy I. [https://www.sciencedirect.com/science/article/pii/S1877056821001201?via%3Dihub#bib0220 Extensor digitorum brevis muscle flap for lower extremity coverage in a context of posttraumatic sepsis]. Orthopaedics & Traumatology: Surgery & Research. 2021 Jun 1;107(4):102901.</ref> | |||
* EDB is often incorporated into composite flaps. The EDB tendon along with a dorsal foot flap are used to repair soft tissue and tendon defects on the dorsal hand. The usage of EDB in the flap allows for simultaneous repair of defects and restoration of finger extension functions allowing for optimal outcomes. <ref>Tian H, Song D, Jin H, Liu Q, Zhao Y, Wang X, Qu W, Li R. [https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7447494/ Repair of soft tissue and extensor tendon defects on the dorsum of the hand by transfer of dorsal foot flap and extensor digitorum brevis tendon in a 3-year-old child: a case report.] Medicine. 2020 Aug 8;99(34).</ref> | |||
== Palpation == | == Palpation == | ||
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{{#ev:youtube|v=LVpF_Mk1avM}}<ref>C Blake. Extensor Digitorum Brevis. Available from: https://www.youtube.com/watch?v=LVpF_Mk1avM [last accessed 20/11/2012]</ref> | {{#ev:youtube|v=LVpF_Mk1avM}}<ref>C Blake. Extensor Digitorum Brevis. Available from: https://www.youtube.com/watch?v=LVpF_Mk1avM [last accessed 20/11/2012]</ref> | ||
== Resources == | |||
[https://www.kenhub.com/en/library/anatomy/extensor-digitorum-brevis-muscle KENHUB - Extensor Digitorum Brevis] | |||
==References== | ==References== | ||
Revision as of 08:08, 26 February 2024
This article is currently under review and may not be up to date. Please come back soon to see the finished work! (26/02/2024)
Original Editor - Ahmed Nasr Top Contributors - Ananya Bunglae Sudindar, Kim Jackson, Abbey Wright and Ahmed Nasr
Origin[edit | edit source]
Extensor Digitorum Brevis (EDB) is one of the intrinsic muscles on the dorsum of the foot. It arises from the upper and lateral surface of the calcaneus, the floor of tarsal sinus, the talocalcaneal ligament, and the stem of the inferior extensor retinaculum. [1][2]
Insertion[edit | edit source]
It inserts via tendons into the base of the proximal phalanx of the 1st toe, and the middle phalanx of the three medial digits joining with the extensor digitorum longus tendon (toes 2-4)[2][3]
Blood Supply[edit | edit source]
The extensor digitorum brevis muscle has a well-developed vascular network. It is supplied proximally by the branches of fibular artery and branches of anterior tibial artery. Distally it is supplied by the dorsalis pedis artery and its branches. [4]
Nerve Supply[edit | edit source]
Deep fibular nerve (S1, S2)[3]
Action[edit | edit source]
Assists Extensor digiorium longus in extending the metatarsophalangeal and interphalangeal joints of the 2nd, 3rd and 4th toes.[2] It also assists extensor hallucis longus and brevis in 1st toe metatarsophalangeal extension.
Clinical Relevance[edit | edit source]
- EDB muscle flap can be used for small defects and infection prevention of bones and joints following traumatic injuries. The extensor digitorum brevis muscle flap proves to be a dependable option which can be attributed to the muscle tissue's inherent resistance to infections, its capacity for effective antibiotic distribution, and its acceptable donor-site morbidity. [6]
- EDB is often incorporated into composite flaps. The EDB tendon along with a dorsal foot flap are used to repair soft tissue and tendon defects on the dorsal hand. The usage of EDB in the flap allows for simultaneous repair of defects and restoration of finger extension functions allowing for optimal outcomes. [7]
Palpation[edit | edit source]
EDB can be palpated on the lateral dorsum of the foot. By encouraging extension of the digits of the foot you can palpate and observe what is described as a swelling where the muscle belly of EDB originates.
Resources[edit | edit source]
KENHUB - Extensor Digitorum Brevis
References[edit | edit source]
- ↑ Anatomy next. Extensor digitorium brevis. Available fromhttps://www.anatomynext.com/extensor-digitorum-brevis/ accessed at (26july 2019)
- ↑ 2.0 2.1 2.2 Keith L. , Anne M. R . Clinically Oriented Anatomy . philidephia : Lippincott Williams & Wilkins.Feb 13, 2013
- ↑ 3.0 3.1 Drake RL, Vogl W, Mitchell AWM. Gray's Anatomy for Students. 39th ed. London; Elsevier; 2005. p574-575
- ↑ Moore KL, Dalley AF, Agur AM. Clinically oriented anatomy. Lippincott Williams & Wilkins; 2013 Feb 13.
- ↑ nabil ebraheim. Extensor Digitorum Brevis - Everything You Need To Know - Dr. Nabil Ebraheim. Available from: https://www.youtube.com/watch?v=GQvjwpXdQ38 [last accessed 30/1/2018]
- ↑ Woussen A, Feuvrier D, Woussen É, Fageot J, Sergent P, Leclerc G, Obert L, Pluvy I. Extensor digitorum brevis muscle flap for lower extremity coverage in a context of posttraumatic sepsis. Orthopaedics & Traumatology: Surgery & Research. 2021 Jun 1;107(4):102901.
- ↑ Tian H, Song D, Jin H, Liu Q, Zhao Y, Wang X, Qu W, Li R. Repair of soft tissue and extensor tendon defects on the dorsum of the hand by transfer of dorsal foot flap and extensor digitorum brevis tendon in a 3-year-old child: a case report. Medicine. 2020 Aug 8;99(34).
- ↑ C Blake. Extensor Digitorum Brevis. Available from: https://www.youtube.com/watch?v=LVpF_Mk1avM [last accessed 20/11/2012]
