A Rare Case of Unipennate Third and Fourth Lumbricals Arising from the Flexor Digitorum Profundus Tendon for the Ring Finger

Ravindra, SS and Rao, Srinivasa Sirasanagandla and Nayak, Satheesha B and Rao, Mohandas KG and Kumar, Naveen (2013) A Rare Case of Unipennate Third and Fourth Lumbricals Arising from the Flexor Digitorum Profundus Tendon for the Ring Finger. OA Case Reports, 2 (15). pp. 1-3.

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Abstract

Introduction The third lumbrical usually arises from the adjacent sides of the flexor digitorum profundus tendons for the middle and ring fingers, whereas the fourth lumbrical arises from the adjacent sides of the flexor digitorum profundus tendons for the ring and little fingers.This article reports a rare case of unipennate third and fourth lumbricals.Case report During regular dissections for medical undergraduates, we came across unusual origin of the third and fourth lumbricals.Both muscles were unipennate and arose from the anterior surface of the flexor digitorum profundus tendon for the ring finger. Then, the tendons of the two lumbricals ran distally and finally attached to the radial margins of the extensor expansions of the ring and little fingers. Further, no variations were observed in the first and second lumbricals. The anomalous origin of the third and fourth lumbricals reported here is remarkable in professional rock climbers.Conclusion Unipennate nature and anomalous origin of third and fourth lumbricals may be liable to rupture during precise movements of the ring and little fingers.

Item Type: Article
Subjects: Medicine > MMMC Manipal > Anatomy
Depositing User: KMC Library
Date Deposited: 09 May 2016 09:11
Last Modified: 09 May 2016 09:11
URI: http://eprints.manipal.edu/id/eprint/145987

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