extensor pollicis longus muscle

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Also found in: Acronyms.

ex·ten·sor pol·li·cis lon·gus mus·cle

(eks-ten'sŏr pol'i-sis long'gus mŭs'ĕl)
Muscle of posterior (extensor) compartment of forearm; origin, posterior surface of middle of shaft of ulna; insertion, dorsal aspect of base of distal phalanx of thumb; action, extends distal phalanx of thumb; nerve supply, radial (posterior interosseous).
Synonym(s): long extensor muscle of thumb, musculus extensor pollicis longus.
Medical Dictionary for the Health Professions and Nursing © Farlex 2012
References in periodicals archive ?
Leung, "Incidence of extensor pollicis longus tendon rupture after nondisplaced distal radius fractures," The Journal of Hand Surgery, vol.
While Checking the surface anatomy of the thumb, we noticed that there is an abnormal lateral division in the extensor pollicis longus tendon at the dorsal aspect of the proximal phalanx.
Table 1: Flexors and extensors of hand Common flexors Common extensors Flexor carpi radialis Extensor digitorum longus Flexor digitorum superficial Extensor indicis Flexor digitorum profundus Extensor digiti minimi Flexor carpi ulnaris Extensor carpi radialis longus Extensor carpi radialis brevis Extensor pollicis longus (EPL) Extensor pollicis brevis (EPB)
Immediate repair and early mobilization of the extensor pollicis longus tendon in zones 1 to 4.
First, wrist hyperextension resulted in contraction forces at the middle third of the ulnar shaft at the insertion sites of the extensor carpi ulnaris and extensor pollicis longus. Next, one-handed standing positions results in compression forces through the rotation center axis of the forearm from the radial head to the distal ulna (Nakamura et al., 1999) with full body weight.
The scaphoid is located on the radial side of the wrist in the anatomical snuff box, which is located between the extensor pollicis brevis and extensor pollicis longus tendons.
Wu, "Spontaneous rupture of extensor pollicis longus tendon with tophaceous gout infiltration," Archives of Orthopaedic and Trauma Surgery, vol.
Bilateral rupture of the extensor pollicis longus tendon in a professional goalkeeper following steroid injections for extensor tenosynovitis.
(2012) used the radial half of the ECRL muscle tendon to reconstruct the tendon of the extensor pollicis longus muscle, since a graft from the inserted tendon was not possible given the absence of the PL muscle, and they obtained excellent results, comparable to those obtained using the fascia lata.
There was 5 (5%) case of extensor pollicis longus tendon irritation which was because of long volar to dorsal screw and the pain subsided once the screw was removed.
According to reports, extensor pollicis longus (EPL) remains the most frequently injured extensor tendon involving distal radius volar plating.

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