Open AccessA Rare Case of Anomalous Origin of First Lumbrical from the Tendon of Flexor Digitorum Superficialis to Index Finger
Author(s) -
Soumitra Trivedi,
Satapathy Bc,
Mrithunjay Rathore,
Sinha Mb
Publication year - 2016
Publication title -
journal of clinical and diagnostic research
Language(s) - English
Resource type - Journals
eISSN - 2249-782X
pISSN - 0973-709X
DOI - 10.7860/jcdr/2016/23358.8801
Subject(s) - anatomy , tendon , cadaveric spasm , carpal tunnel , forearm , medicine , dissection (medical) , index finger , carpal tunnel syndrome , dorsum , surgery , median nerve
Human hand is involved in variety of precision work which requires a combined effort of forearm muscles as well as intrinsic muscles of hand. Lumbricals along with interossei muscles connect the tendons of flexor and extensor muscles and thus play a key role in the characteristic movements of human hands. Lumbricals originate from long flexor tendon and is inserted into dorsal digital expansion. Any variation in the attachment of these muscles can lead to deviation from the normal actions of the fingers and their proximal extension into carpal tunnel and might lead to carpal tunnel syndrome. An extremely rare case of first lumbrical taking origin solely from first tendon of Flexor Digitorum Superficialis (FDS) and having proximal attachment extending into carpal tunnel was noticed bilaterally in cadaveric dissection. These variations are always challenging for clinicians and surgeons during hand surgeries.