Objective To show the distribution of facial exposure to non-melanoma biologically effective UV irradiance changes by rotation angles. Methods This study selected the cheek, nose, and forehead as representative facial...Objective To show the distribution of facial exposure to non-melanoma biologically effective UV irradiance changes by rotation angles. Methods This study selected the cheek, nose, and forehead as representative facial sites for UV irradiance measurements, which were performed using a rotating manikin and a spectroradiometer. The measured UV irradiance was weighted using action spectra to calculate the biologically effective UV irradiances that cause non-melanoma （UVBEnon.rnel） skin cancer. The biologically effective UV radiant exposure （HBEnon-mel） was calculated by summing the UVBEnon-mel data collected over the exposure period. Results This study revealed the following： （1） the maximum cheek, nose and forehead exposure UVA and UVB irradiance times and solar elevation angles （SEA） differed from those of the ambient UV irradiance and were influenced by the rotation angles; （2） the UV irradiance exposure increased in the following order： cheek 〈 nose 〈 forehead; （3） the distribution of UVBEnon-mel irradiance differed from that of unweighted UV radiation （UVR） and was influenced by the rotation angles and exposure times; and （4） the maximum percentage decreases in the UVBEnon-melradiant exposure for the cheek, nose and forehead from 0° to 180° were 48.41%, 69.48% and 71.71%, respectively. Conclusion Rotation angles relative to the sun influence the face＇s exposure to non-melanoma biologically effective UV.展开更多
<b><span style="font-family:Verdana;">Background</span></b><span style="font-family:Verdana;"><strong></strong></span><strong><b><span...<b><span style="font-family:Verdana;">Background</span></b><span style="font-family:Verdana;"><strong></strong></span><strong><b><span style="font-family:Verdana;">:</span></b><span style="font-family:Verdana;"></span></strong><b><span style="font-family:;" "=""> </span></b><span style="font-family:Verdana;">There are often situations that require the correction of facial defects. Local fasciocutaneous flaps provide a reasonable option for reconstruction of facial defects with good colour and texture match and good success rate. Among the various options of local flaps is the use of a rotation flap. </span><span style="font-family:Verdana;"><strong></strong></span><strong><b><span style="font-family:Verdana;">Aim</span></b></strong><strong><b><span style="font-family:Verdana;">:</span></b><span style="font-family:Verdana;"></span></strong><b><span style="font-family:;" "=""> </span></b><span style="font-family:Verdana;">The aim of this work is to demonstrate the reliability of the rotation flap in the correction of facial defects and its ability to achieve a good aesthetic outcome by applying the knowledge of facial aesthetic units. </span><span style="font-family:Verdana;"><strong></strong></span><strong><b><span style="font-family:Verdana;">Case </span></b><span style="font-family:Verdana;"></span></strong><strong><b><span style="font-family:Verdana;">Presentation</span></b><span style="font-family:Verdana;"></span></strong> <strong><b><span style="font-family:Verdana;">:</span></b><span style="font-family:Verdana;"> <strong></strong></span><strong><b><span style="font-family:;" "=""> </span></b></strong></strong><span style="font-family:Verdana;"></span><span style="font-family:Verdana;"></span><span style="font-family:;" "=""></span><span style="font-family:Verdana;">This is a case report of a 28-year-old woman who suffered an avulsion injury to the face with loss of facial tissue resulting in exposure of the left zygomatic bone. The defect measured 5</span><span style="font-family:;" "=""> </span><span style展开更多
PURPOSE: To evaluate the results of facial-cervico-pectoral rotation flap (FRF) and temporalis myofascial flap (TMF) in the repair of large soft tissue defect in oral and maxillofacial regions. METHODS: Six patients w...PURPOSE: To evaluate the results of facial-cervico-pectoral rotation flap (FRF) and temporalis myofascial flap (TMF) in the repair of large soft tissue defect in oral and maxillofacial regions. METHODS: Six patients with malignant orbital tumors and/or maxillofacial tumors invading the orbital regions were treated with extensive resection. The major midfacial soft tissue defects were repaired by temporalis myofascial flap and facial-cervico-pectoral rotation flap. RESULTS: All flaps were successfully transferred; the result of facial aesthetics was satisfactory in all patients. Follow-up periods varied from 9 to 20 months (mean follow up period: 13.2 months) and all of the patients were alive during the follow-up period with one recurrence. CONCLUSIONS: The TMF and the FRF are easy to harvest, have low donor site morbidity, and are compatible with the principles of oncologic resection. It is the method of choice for repairing major orbito-maxillofacial skin defects following resection of the tumors.展开更多
基金supported by the National Natural Science Foundation of China(No.81273034)Program for Liaoning Innovative Research Team in University(Grant number LT2015028)
文摘Objective To show the distribution of facial exposure to non-melanoma biologically effective UV irradiance changes by rotation angles. Methods This study selected the cheek, nose, and forehead as representative facial sites for UV irradiance measurements, which were performed using a rotating manikin and a spectroradiometer. The measured UV irradiance was weighted using action spectra to calculate the biologically effective UV irradiances that cause non-melanoma （UVBEnon.rnel） skin cancer. The biologically effective UV radiant exposure （HBEnon-mel） was calculated by summing the UVBEnon-mel data collected over the exposure period. Results This study revealed the following： （1） the maximum cheek, nose and forehead exposure UVA and UVB irradiance times and solar elevation angles （SEA） differed from those of the ambient UV irradiance and were influenced by the rotation angles; （2） the UV irradiance exposure increased in the following order： cheek 〈 nose 〈 forehead; （3） the distribution of UVBEnon-mel irradiance differed from that of unweighted UV radiation （UVR） and was influenced by the rotation angles and exposure times; and （4） the maximum percentage decreases in the UVBEnon-melradiant exposure for the cheek, nose and forehead from 0° to 180° were 48.41%, 69.48% and 71.71%, respectively. Conclusion Rotation angles relative to the sun influence the face＇s exposure to non-melanoma biologically effective UV.
文摘<b><span style="font-family:Verdana;">Background</span></b><span style="font-family:Verdana;"><strong></strong></span><strong><b><span style="font-family:Verdana;">:</span></b><span style="font-family:Verdana;"></span></strong><b><span style="font-family:;" "=""> </span></b><span style="font-family:Verdana;">There are often situations that require the correction of facial defects. Local fasciocutaneous flaps provide a reasonable option for reconstruction of facial defects with good colour and texture match and good success rate. Among the various options of local flaps is the use of a rotation flap. </span><span style="font-family:Verdana;"><strong></strong></span><strong><b><span style="font-family:Verdana;">Aim</span></b></strong><strong><b><span style="font-family:Verdana;">:</span></b><span style="font-family:Verdana;"></span></strong><b><span style="font-family:;" "=""> </span></b><span style="font-family:Verdana;">The aim of this work is to demonstrate the reliability of the rotation flap in the correction of facial defects and its ability to achieve a good aesthetic outcome by applying the knowledge of facial aesthetic units. </span><span style="font-family:Verdana;"><strong></strong></span><strong><b><span style="font-family:Verdana;">Case </span></b><span style="font-family:Verdana;"></span></strong><strong><b><span style="font-family:Verdana;">Presentation</span></b><span style="font-family:Verdana;"></span></strong> <strong><b><span style="font-family:Verdana;">:</span></b><span style="font-family:Verdana;"> <strong></strong></span><strong><b><span style="font-family:;" "=""> </span></b></strong></strong><span style="font-family:Verdana;"></span><span style="font-family:Verdana;"></span><span style="font-family:;" "=""></span><span style="font-family:Verdana;">This is a case report of a 28-year-old woman who suffered an avulsion injury to the face with loss of facial tissue resulting in exposure of the left zygomatic bone. The defect measured 5</span><span style="font-family:;" "=""> </span><span style
文摘PURPOSE: To evaluate the results of facial-cervico-pectoral rotation flap (FRF) and temporalis myofascial flap (TMF) in the repair of large soft tissue defect in oral and maxillofacial regions. METHODS: Six patients with malignant orbital tumors and/or maxillofacial tumors invading the orbital regions were treated with extensive resection. The major midfacial soft tissue defects were repaired by temporalis myofascial flap and facial-cervico-pectoral rotation flap. RESULTS: All flaps were successfully transferred; the result of facial aesthetics was satisfactory in all patients. Follow-up periods varied from 9 to 20 months (mean follow up period: 13.2 months) and all of the patients were alive during the follow-up period with one recurrence. CONCLUSIONS: The TMF and the FRF are easy to harvest, have low donor site morbidity, and are compatible with the principles of oncologic resection. It is the method of choice for repairing major orbito-maxillofacial skin defects following resection of the tumors.
