FIELD: medicine.SUBSTANCE: invention refers to traumatology and orthopaedics and can be used for treating double flexion contracture of wrist joint in children with arthrogryposis. Tendonous-muscular plasticity is applied on forearm and hand, dorsal arthrotomy and dorsal capsulorrhaphy of wrist joint in deformation correction position.EFFECT: method allows to improve hand grip function.1 cl, 13 dwg