Amniotic Membrane in Decompressive Craniectomy to Reduce Scarring

Inclusion Criteria: * Adults ages 18 or older. * Diagnosed with closed head trauma or cerebral infarction where decompressive craniectomy with durotomy is performed. * Willingness to comply with study procedures. * The patient's or legally authorized representative's (LAR's) ability to give full written consent. Exclusion Criteria: * Prior surgery at the site * Participation in another ongoing trial * Open cranial wounds * Site exhibits clinical signs and symptoms of local infection. * Current diagnosis of cancer at the site * Prior radiation therapy treatment at the site. * Patients on any investigational drug(s) or therapeutic device(s) within 30 days preceding screening. * Known history of having Acquired Immunodeficiency Syndrome (AIDS) or HIV. * Presence of any condition(s) which seriously compromises the subject's ability to complete this study, or has a known history of poor adherence with medical treatment. * Currently taking medications which could affect graft incorporation (supervising physician's discretion). * Allergy to gentamicin sulfate and/or streptomycin sulfate