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KMID : 0361420130370010138
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Journal of Korean Academy of Rehabilitation Medicine
2013 Volume.37 No. 1 p.138 ~ p.142
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Pseudo-Anterior Interosseous Nerve Syndrome by Multiple Intramuscular Injection
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Kim Min-Young
Kim Dong-Hwee
Park Byung-Kyu
Kim Baik-Hyun
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Abstract
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Blind intramuscular injection might cause severe neurovascular injury if it would be performed with insufficient knowledge of anatomy around the injection area. We report a case of pseudo-anterior interosseous syndrome caused by multiple intramuscular steroid injections around the antecubital area. The patient had weakness of the 1st to 3rd digits flexion with typical OK sign. Muscle atrophy was noted on the proximal medial forearm, and sensation was intact. The electrophysiologic studies showed anterior interosseous nerve compromise, accompanying with injury of the other muscles innervated by the median nerve proximal to anterior interosseous nerve. Magnetic resonance imaging of the left proximal forearm revealed abnormally increased signal intensity of the pronator teres, flexor carpi radialis, proximal portion of flexor digitorum superficialis, and flexor digitorum profundus innervated by the median nerve on the T2-weighted images. This case shows the importance of knowledge about anatomic structures in considering intramuscular injection.
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KEYWORD
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Pseudo-anterior interosseous nerve syndrome, Intramuscular injections
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