Removal of a nasal hump and reduction of the dorsum during rhinoplasty loosens or resects the anatomic connections between the upper lateral cartilages and the septum and bone. The structural arrangement of the middle nasal vault is thus lost. If reconstructive measures are not performed, this often leads to adverse functional and aesthetic sequelae. The lateral walls of the nose and the internal nasal valves may collapse, leading to nasal obstruction. A typical external sign of a collapsed middle nasal vault is the formation of the "inverted V" deformity, with destruction of the natural contours and interruption of the aesthetic lines of the nasal dorsum (►Fig. 1). 1 In patients with a high and narrow nose, a finding of a collapsing lateral nasal wall and collapse of the internal nasal valves is often easily recognizable preoperatively. By contrast, it is more difficult to assess cases in which there are initially no obvious pathological findings in the middle nasal vault but in which there is a high risk of collapse of the internal nasal valves and development of an inverted V deformity. Patients with short nasal bones, thin skin, and weak upper lateral cartilages fall into this category. The aim in these cases is to maintain or restore normal functional and aesthetic anatomy through rhinoplasty.Implantation of spreader grafts is regarded as the standard method for preventing collapse of the internal nasal valves and an inverted V deformity. In functional terms, the grafts move the upper lateral cartilages away from the septum and enlarge the internal nasal valve. In addition, the volume and Keywords ► spreader flaps ► internal nasal valve ► middle vault ► inverted V deformity
AbstractThe objective of this study was to introduce various spreader flap technique modifications to adjust the width of the middle nasal vault in patients who underwent rhinoplasties with humpectomy. Decisive modifications of current spreader flap techniques were performed to allow a more natural restoration of the middle nasal vault and the internal nasal valve after humpectomy. Additional steps provide tools to adjust the width and shape of the middle nasal vault according to patients' requirements. The techniques were categorized into "basic spreader flaps," "flaring spreader flaps," "support spreader flaps," and "interrupted spreader flaps." The various spreader flap techniques were used during 576 primary septorhinoplasties in patients with hump noses, hump/crooked noses, or hump/tension noses. The average follow-up was 19 months. Patients who received basic spreader flaps or a flaring spreader flaps tended to show a slightly too wide middle nasal vault, revision surgery was necessary in four of these cases. All other patients showed an appropriate width in the middle nasal vault and an aesthetically pleasing course of the dorsal aesthetic lines. No signs of inverted V deformities or collapse of the internal nasal valve were observed in any of the patients. Patients who had reported impaired nasal breathing preoperatively describe...