Currently at our university teaching hospital the cranioplasty is planned after a delay of 3 months, because of a fear of infectious complications in case of earlier remission. However, in neuro-rehabilitation, a shortening of this delay is desirable, especially when the patient can mobilize and/or be discharged home (helmets are often not well supported) or when a radiological and clinical Trephined Syndrome occurs. Indeed, the solution of staying in bed awaiting the 3 month delay is not ideal both from the point of view of rehabilitation (very limited therapies in the prone position, risk of the appearance of complications of the decubitus), comfort of the patient and eventual non reversible neurological damage due to the Trephined Syndrome.