Diabetic cheiroarthropathy, also known as Diabetic stiff hand syndrome or limited joint mobility syndrome, is a cutaneous condition characterized by waxy, thickened skin and limited joint mobility of the hands and fingers, leading to flexion contractures, a condition associated with diabetes mellitus and it is observed in roughly 30% of diabetic patients with longstanding disease. It can be a predictor for other diabetes-related complications and was one of the earliest known complications of diabetes, first documented in 1974.In the fingers, diabetic cheiroarthropathy can cause such extreme limited mobility that the patient is unable to fully extend the fingers in order to flatten the hand. [Source: Wikipedia 
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