Surgery of the hand in recessive dystrophic epidermolysis bullosa.

The underlying genetic abnormalities of epidermolysis bullosa (EB) cause destabilization at the dermo-epidermal junction. Patients with EB characteristically are subject to blistering following relatively minor trauma (the Nikolsky sign), and suffer from ulcers and erosions in all areas subject to persistent or repeated friction, such as the hand. Hand deformities occur in most patients with dystrophic EB (DEB), and include adduction contractures of the first web space, pseudosyndactyly, and flexion contractures of the interphalangeal, metacarpophalangeal, and wrist joints. All structures in the hand may be involved. The severity of the deformity worsens with age, and surgical correction becomes increasingly difficult. Recurrent deformity occurs within 2 to 5 years. Meticulous skin care and the use of well-fitted splints supervised within a multidisciplinary team setting are essential. To date there is no strong evidence base on which to plan surgical treatment of the hand in DEB.