 The next step was after removal of this tumor, closure of the wound, a large piece of Duragen was placed over the dural defect and the bone flap was reapproximated and held secured with Lorenz plates. 
The next step was after removal of this tumor , closure of the wound , a large piece of Duragen was placed over the dural defect and the bone flap was reapproximated and held secured with Lorenz plates .