Split calvarial graft cranioplasty for the prevention of @entity10 after retrosigmoid resection of XXXX .

@entity1 @entity154 @entity5513 @entity86 @entity10
OBJECTIVE: This study describes the technique and efficacy of split calvarial graft cranioplasty for the reconstruction of retrosigmoid/ @entity154 following surgery for @entity5513 . STUDY DESIGN: A prospective study of the technique of split calvarial graft cranioplasty, its postoperative healing, and incidence of @entity86 . METHODS: The technique requires splitting of the craniotomy bone flap into outer and inner table bone grafts. The combination of both bony grafts allows the coverage of a wider area of posterior fossa dura. This technique was used in 18 @entity1 . All @entity1 were followed for a minimum of 6 months. Eleven of 18 @entity1 were followed for 1 year or longer. Four @entity1 had three-dimensional computed tomography of their skull and area of split calvarial bone graft. RESULTS: One of 18 @entity1 had a persistent disabling @entity10 at 1 year postoperatively. A natural contour of the retrosigmoid area was achieved in all @entity1 . Three-dimensional computed tomography scan, obtained 6 months postoperatively, showed total coverage of the retrosigmoid area and fusion of the bone flap to the surrounding skull. CONCLUSION: The technique of split calvarial grafting of posterior fossa defects is a feasible, safe, and effective way of separating the nuchal musculature and posterior fossa dura. The technique also allows the restoration of the contour and bony covering of the retrosigmoid area. The technique is a simple alternative to other types of cranioplasties aimed at reducing the incidence of @entity86 in @entity1 with @entity5513 .
