Craniotomy revisited: Techniques for improved access and reconstruction

Objective: To describe simple modifications of the technique of opening and closure of the craniotomy to improve basal exposure and reconstruction, Me thods: The modifications involve: a) additional soft-tissue dissection whic h is carried downward to the base of the ear and to the orbital rim, exposi ng the orbital rim and malar eminence without removing the bone, b) cutting the bone flap so that 'bridges' of bone remain that help to stabilize the flap when it is returned to the cranium at the end of the operation; c) the wedging of bone chips between the bone flap and native cranium at the time the bone is being reaffixed so as to provide firm stability by diminishing movement of the bone nap; d) the use of bone dust and bone chips mixed wit h the patient's blood to seal and bridge the gap between the bone flap and the native bone; e) reattachment of the temporalis muscle with the bone fla p sutures, An 'inlay' technique of duraplasty is also described. Results an d conclusion: These simple modifications of craniotomy provide better basal exposure and reconstruction with little additional operating time at no ad ditional cost.