The posterior fossa wound was then closed in layers.  The dura was closed with interrupted and running mattress of 4-0 Nurolon.  The dura was watertight, and it was covered with blue glue.  Gelfoam was placed over the dural closure.  Then, the muscle and fascia were closed in individual layers using #0 Ethibond.  Subcutaneous was closed with interrupted inverted 2-0 and 0 Vicryl, and the skin was closed with running locking 3-0 Nylon.