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Insights with consensus on Abductor Pollicis Longus from the Central Indian population at Nagpur, Maharashtra



Vishwajit Deshmukh1, Shweta Talhar2, Gayatri Muthiyan1, Payal Kasat3, Kirubhanand Chandrasekaran1 & Bharat Sontakke*,1



1Department of Anatomy, AIIMS, Nagpur, Maharashtra, India;2Department of Anatomy, MGIMS, Sewagram, Maharashtra, India; 3Department of Anatomy, Dr B C Roy Multispecialty Medical Research Center, Kharagpur, West Bengal, India; *Corresponding author



Bharat Sontakke - E-mail: sontakkebr@aiimsnagpur.edu.in; Mobile: +91 9763462693
Vishwajit Deshmukh - E-mail: vishwajitdeshmukh@aiimsnagpur.edu.in
Shweta Talhar - E-mail: shweta@mgims.ac.in
Gayatri Muthiyan - E-mail: gayatrimuthiyan@aiimsnagpur.edu.in
Payal Kasat - E-mail: kasatp54@gmail.com
Chandrasekaran Kirubhanand - E-mail: kirubhanand@aiimsnagpur.edu.in


Article Type

Research Article



Received November 1, 2023; Revised November 30, 2023; Accepted November 30, 2023, Published November 30, 2023



The anatomical snuff box is bounded laterally by the Abductor pollicis longus (APL) and the Extensor pollicis brevis (EPB) tendons. The variation in insertion of extensor tendons at the forearm and wrist is an interesting phenomenon. Therefore, a sound knowledge of such variations in extensor tendons is essential to know the consequence of tendon injury during implementation of its repair. Hence, we studied 48 formaldehyde fixed forearms of Indian-origin cadavers with age groups ranging from 33 to 67 years from the Central Indian population at Nagpur, Maharashtra, India. Variation in the insertion of APL was checked by tracing the tendon till its insertion. APL muscle was found with single tendon in 20 forearms, double in 9, triple in 8 and quadruple in 5 and five (maximum) in 6 forearms. In 93% (n=45), the APL tendon was inserted into the first metacarpal bone and in 7% (n=03), it was inserted into the trapezium bone. No variation was noted in the EPB tendon. Data shows that there are accessory slips in the APL tendon, differing from the standard description. Thus, data provides awareness of such potential variation among operating surgeons for better management of the diseased during dissection.



Abductor pollicis longus, anatomical, variations, anatomical snuff box



Deshmukh et al. Bioinformation 19(11): 1111-1115 (2023)


Edited by

P Kangueane






Biomedical Informatics



This is an Open Access article which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly credited. This is distributed under the terms of the Creative Commons Attribution License.