The ‘rectangular palm’ sign in ulnar nerve paralysis

The ‘rectangular palm’ sign in ulnar nerve paralysis Eur J Plast Surg (2012) 35:569–570 DOI 10.1007/s00238-012-0716-0 LETTER TO THE EDITOR Nola Lloyd & Donald Sammut Received: 2 January 2012 /Accepted: 7 March 2012 /Published online: 27 March 2012 Springer-Verlag 2012 Sir, 2. Mannerfelt sign [2] in effect an exacerbation of the claw The ulnar nerve supplies most of the intrinsic muscles of the hand secondary to extensor overactivity. Present at rest, hand. The abductor pollicis brevis, the two radial lumbricals distinct from the Duchenne claw [3] or intrinsic minus and parts of the flexor pollicis brevis and opponens pollicis are hand which is produced when the patient is invited to supplied by the median nerve. All remaining intrinsic muscles extend the long digits. Both of these signs are secondary are supplied by the ulnar nerve, including all interossei and the to loss of the stabilising force of the lumbricals and two ulnar lumbricals, the hypothenar muscles and parts of interossei on the MP joints, permitting hyperextension. flexor pollicis brevis and opponens pollicis and the adductor 3. Wartenberg's sign [4–6], abduction of the little finger at pollicis. The bulkiest individual muscles in this group are the rest, secondary to interosseous loss. adductor pollicis and the first dorsal interosseous. European Journal of Plastic Surgery Springer Journals

The ‘rectangular palm’ sign in ulnar nerve paralysis

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Copyright © 2012 by Springer-Verlag
Medicine & Public Health; Plastic Surgery
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