anterior interosseous nerve


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an·te·ri·or in·ter·os·se·ous nerve

[TA]
a branch of the median nerve arising in the elbow region, running on the interosseous membrane, supplying the flexor pollicis longus, part of flexor digitorum profundus and the pronator quadratus muscles, as well as radiocarpal and intercarpal joints.

an·te·ri·or in·ter·os·se·ous nerve

(an-tēr'ē-ŏr in'tĕr-os'ē-ŭs nĕrv) [TA]
A branch of the median nerve arising in the elbow region, running on interosseous membrane, supplying the flexor pollicis longus, part of flexor digitorum profundus, and the pronator quadratus muscles, as well as radiocarpal and intercarpaljoints.
Synonym(s): nervus interosseus antebrachii anterior [TA] .
References in periodicals archive ?
Anterior interosseous nerve (AIN) palsy only, 12 patients; posterior interosseous (PIN) palsy only, 13 patients; ulnar palsy only, 0 patients; AIN+PIN palsies, 6 patients; PIN+ulnar palsies, 2 patients.
At thirteen months postoperatively, when the patient's symptoms had failed to improve, a surgical exploration of the median nerve and anterior interosseous nerve was performed along with neurolysis of these nerves at the antecubital fossa and a release of the median nerve at the carpal tunnel.
Five children (2%) presented a combined neurovascular injury, in 1 child ulnar nerve injury and brachial thrombosis occurred and 4 children suffered from injury anterior interosseous nerve and brachial artery lesion before fracture reposition.
Anterior interosseous nerve dysfunction results in a flattened pinch without IPJ or distal IPJ flexion, which increases the contact of the thumb and index finger pulp.
In our study, 8(10.1%) patients had a radial nerve lesion, 5(6.3%) had median and isolated anterior interosseous nerve lesions, and 1(1.2%) had an ulnar nerve lesion.
The median nerve runs down the anteromedial aspect of the arm but first gives rise to the anterior interosseous nerve, which descends on the interosseous membrane between the flexor digitorum profundus (FDP) and flexor pollicis longus (FPL).
One of the nerves leading to a muscle was taken and attached to the anterior interosseous nerve, which goes to the hand.
Nerve transfers to restore wrist and fingers extension has been reported using donors such as median nerve branches to the pronator teres (PT), flexor carpi radialis (FCR), palmaris longus (PL), and flexor digitorum superficalis (FDS); anterior interosseous nerve (AIN) branches to the pronator quadratus (PQ), and radial nerve branches to the supinator (Sukegawa et al.; Ray & Mackinnon; Ukrit et al., 2009; Bertelli & Ghizoni, 2010; Lowe et al.; Ustun et al).
(2) Various articles have discussed about the relationship between AHFPL muscle and anterior interosseous nerve and median nerve.
However, Ruch did report an anterior interosseous nerve transection following synovectomy.
With a digital caliper, we measured the branches of the pronator teres muscle (PTM), anterior interosseous nerve (AIN), extensor carpi radialis longus muscle (ECRL), extensor carpi radialis brevis muscle (ECRB), and posterior interosseous nerve (PIN).
The muscle fibres were directed downwards and medially, lying superficial to the anterior interosseous nerve, vessels and superficial to the pronator quadratus (figure 1).

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