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Loss of digital extension
76%
499/660
Weakness of the interossei
2%
14/660
Decreased sensation in the ring and little fingers
10/660
Decreased sensation in the ulnar dorsal forearm
7%
49/660
Loss of flexor pollicis longus function
12%
78/660
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The anterolateral portal as originally described puts the radial nerve at risk because of its close proximity to the portal. The best test to demonstrate radial nerve function is the ability to extend the metacarpophalangeal joints. Weakness of the interossei, sensation to the ring and little fingers, and ulnar forearm sensation are all ulnar nerve functions. The flexor pollicis longus is innervated by the median nerve.
3.7
(6)
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