Sir: Advantages of the endoscopic approach to brow repositioning have led to a greater acceptability of this procedure among cosmetic patients. It is also being used increasingly in reconstructive procedures, including trauma, tumor resection, and craniotomy. While open coronal approaches remain the accepted standard, a limited number of reports have been published concerning endoscopic forehead recontouring. We present a 40-year-old woman with significant forehead contour irregularities following bifrontal craniotomy for resection of a pituitary macroadenoma. Her primary complaints were a change in her appearance and limited forehead motion. On physical examination she was noted to have a well-healed bicoronal incision with visible and palpable bilateral vertical defects over her forehead osteotomy sites. In addition, there was significant contraction of her frontalis muscle with limited bilateral brow movement (Fig. 1, left).Fig. 1.: Preoperative and postoperative views of the endoscopic cranioplasty procedure. This procedure was combined with an endoscopic brow lift. Note the improvement in the bony contour of the forehead.Using endoscopic techniques, a subperiosteal dissection was accomplished using five small incisions. The temporal incisions were used to create a flap just above the superficial layer of the deep temporal fascia that joined the center subperiosteal flap through the temporal line. The forehead soft tissues were lifted completely from the arcus marginalis. Once the flap was elevated, the vertical frontal bone defects were well visualized. The bilateral defects were filled with 10 cc of Norian bone cement (Synthes Corporation, Paoli, Pa.) using a beaver-tail elevator as a spatula. Standard elevation of the brow was accomplished with bone- anchored sutures, and a temporal lift was performed (Fig. 1right). Cranioplasty is particularly amenable to the endoscopic approach given the ease with which a subperiosteal flap can be elevated. Recently, successful case reports of endoscopic forehead recontouring have been published using different contour techniques, including power rasps and burrs,1 expanded polytetrafluoroethylene,2 hydroxylapatite,3 and calcium phosphate cement.4,5 These reports differ from ours, however, as to the type of defect repaired, the placement, number, and types of incisions, and the type of graft used. Temporal access incisions allow easy exposure to the lateral forehead deformities bilaterally as well as easier insertion of the bone graft. They also allow for possible bone rasping if necessary. With respect to our choice of synthetic bone graft, we used a calcium phosphate cement paste (Norian). The advantages of Norian bone cement include avoidance of donor-site morbidity, a smaller structure than synthetic hydroxylapatites (which results in better remodeling), and an isothermic reaction upon application. We found that forehead recontouring is particularly amenable to the endoscopic approach. There are some unique differences when using this technique for cosmetic versus reconstructive purposes. The reconstructive approach may involve elevating over hardware, elevating over irregular bone surfaces, and dissecting in previously dissected planes. However, these differences had no effect on the final results and were challenges that were easily overcome. With proficiency in endoscopic cosmetic brow lifting, this approach is easily applied in reconstructive cases, providing patients with a less invasive option. Jeremy Warner, M.D. Department of Surgery Division of Plastics Surgery University of Wisconsin Madison, Wis. Tom D. Wang, M.D. Department of Otolaryngology Division of Facial Plastic Surgery Oregon Health Sciences University Portland, Ore. Benjamin C. Marcus, M.D. Department of Surgery Division of Facial Plastic Surgery University of Wisconsin Madison, Wis.
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