caa a22 4500 44585121X CHVBK 20180317145414.0 cr unu---uuuuu 170323e20110901xx s 000 0 eng 10.1007/s10006-010-0231-z doi (NATIONALLICENCE)springer-10.1007/s10006-010-0231-z Postoperative pressure-induced alopecia after segmental osteotomy at the upper and lower frontal edentulous areas for distraction osteogenesis [Elektronische Daten] [Kazuhiro Matsushita, Nobuo Inoue, Kazuhiro Ooi, Yasunori Totsuka] Introduction: Postoperative alopecia is a relatively rare event, and therefore both patients and surgeons are puzzled once it develops even though it is said to improve spontaneously with time in most cases. We report a parieto-occipital pressure-induced alopecia firstly developed in a patient who had undergone repeated surgery for 10years after a traffic accident. Case report: A 29-year-old male underwent segmental osteotomy at the upper and lower frontal edentulous areas for distraction osteogenesis. Throughout the operation, he was in the supine position with the hair covered with a paper cap and the head on a plastic vinyl chloride-covered soft foam horseshoe-shaped urethane sponge placed on the horseshoe-shaped headrest. About 2weeks after the surgery, two patches of parieto-occipital alopecia were observed at the barber's. It cured gradually during the follow-up visits. Conclusion: The pathophysiology of the condition is thought to be mostly pressure-induced ischemia of hair follicles, and then we have to try not to make the situation. Scalp massages and the head repositioning during the surgery should be one of the means of prevention. Springer-Verlag, 2010 Alopecia nationallicence Orthognathic surgery nationallicence Distraction osteogenesis nationallicence Segmental osteotomy nationallicence Matsushita Kazuhiro Department of Oral and Maxillofacial Surgery, Division of Oral Pathobiological Science, Graduate School of Dental Medicine, Hokkaido University, N13 W7, Kita-ku, Sapporo, 060-8586, Hokkaido, Japan aut Inoue Nobuo Department of Gerodontology, Division of Oral Health Science, Graduate School of Dental Medicine, Hokkaido University, Hokkaido, Japan aut Ooi Kazuhiro Department of Oral and Maxillofacial Surgery, Division of Oral Pathobiological Science, Graduate School of Dental Medicine, Hokkaido University, N13 W7, Kita-ku, Sapporo, 060-8586, Hokkaido, Japan aut Totsuka Yasunori Department of Oral and Maxillofacial Surgery, Division of Oral Pathobiological Science, Graduate School of Dental Medicine, Hokkaido University, N13 W7, Kita-ku, Sapporo, 060-8586, Hokkaido, Japan aut Oral and Maxillofacial Surgery Springer-Verlag 15/3(2011-09-01), 161-163 1865-1550 15:3<161 2011 15 10006 https://doi.org/10.1007/s10006-010-0231-z text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s10006-010-0231-z text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Matsushita Kazuhiro Department of Oral and Maxillofacial Surgery, Division of Oral Pathobiological Science, Graduate School of Dental Medicine, Hokkaido University, N13 W7, Kita-ku, Sapporo, 060-8586, Hokkaido, Japan aut NATIONALLICENCE 700 1- Inoue Nobuo Department of Gerodontology, Division of Oral Health Science, Graduate School of Dental Medicine, Hokkaido University, Hokkaido, Japan aut NATIONALLICENCE 700 1- Ooi Kazuhiro Department of Oral and Maxillofacial Surgery, Division of Oral Pathobiological Science, Graduate School of Dental Medicine, Hokkaido University, N13 W7, Kita-ku, Sapporo, 060-8586, Hokkaido, Japan aut NATIONALLICENCE 700 1- Totsuka Yasunori Department of Oral and Maxillofacial Surgery, Division of Oral Pathobiological Science, Graduate School of Dental Medicine, Hokkaido University, N13 W7, Kita-ku, Sapporo, 060-8586, Hokkaido, Japan aut NATIONALLICENCE 773 0- Oral and Maxillofacial Surgery Springer-Verlag 15/3(2011-09-01), 161-163 1865-1550 15:3<161 2011 15 10006 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer