Correction of the claw hand
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Updated: May 27, 2026

The Knob Supination Task: A Semi-automated Method for Assessing Forelimb Function in Rats
Published on: September 28, 2017
Anthony Sapienza1, Steven Green
1Hand Surgery Division, Department of Orthopedics, Bellevue Hospital Center, NYU Hospital for Joint Diseases, 301 East 17th Street, New York, NY 10003, USA. anthony.sapienza@nyumc.org
Abstract:
Intrinsic paralysis can be the manifestation of a variety of pathologic entities (stroke, cerebral palsy, Charcot-Marie-Tooth, muscular dystrophy, leprosy, trauma, cervical disease, and compressive and metabolic neuropathies). Patients present with a spectrum of clinical findings dependent on the cause and severity of the disease. The 3 main problems caused by intrinsic weakness of the fingers are clawing with loss of synchronistic finger flexion, inability to abduct/adduct the digits, and weakness of grip. Clawing is defined as hyperextension of the metacarpophalangeal joints and flexion of the interphalangeal joints. This article describes the clinical evaluation and surgical treatment options for claw hand.
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