ABSTRACT
<p><b>OBJECTIVE</b>To evaluate the clinical effect of mandibular osteomuscular flap pedicled with temporalis to repair maxillary defect.</p><p><b>METHODS</b>From March 2008 to May 2010, ten cases of maxillary defects resulted from malignant tumor resection were treated with mandibular osteomuscular flap pedicled with temporalis. Ten cases of malignant tumor included six cases of Squamous cell carcinoma,one case of duct carcinoma, osteosarcoma, chondrosarcoma and malignant melanoma. One case was repaired by mandibular osteomuscular flap only, nine cases were repaired by mandibular osteomuscular flaps combined with other soft tissue flaps.</p><p><b>RESULTS</b>All the 10 mandibular osteomuscular flaps survived completely with no complication. The patients were followed up for 12 to 36 months, with an average of 18 months. Satisfactory appearance and complete functional restoration were achieved except for one case of chondrosarcoma recurrence.</p><p><b>CONCLUSIONS</b>The mandibular osteomuscular flap pedicled with temporalis is safe and easily performed with less complication. It is an ideal method for repairing the maxillary defect.</p>
Subject(s)
Aged , Female , Humans , Male , Middle Aged , Mandible , Transplantation , Maxilla , Pathology , General Surgery , Plastic Surgery Procedures , Methods , Skin Transplantation , Surgical Flaps , Temporal Muscle , Transplantation , Wound HealingABSTRACT
ObjectiveTo probe into the clinical efficiency of reconstruction to person who had composite tissue defect of the floor of mouth and the lower part of face with the free forearm flap and free iliac bone in the same term.MethodsBefore the surgery, the surgeon should carefully evaluate the scope and shape of defects in 11 cases who had the composite tissue defects of the floor of mouth and the lower part of face, to design the individual forearm flap, so that it matches with the defect region. During surgery, the first resumption of defects using titanium plates forming the basic shape of mandible and the occlusal relationship,then used to re-sawing to take modeling of the iliac bone,transplanted free iliac bone and fixed after the inside of the titanium plate, thereby restoring the continuity of mandible missing.ResultsFree forearm flap and free iliac bone all survived in 11 cases, the success rate of 100％. The patients were followed up for 6 to 12 months, although the shape of restoration areas were different levels of fat, but eating, swallowing and other oral function had been well improved, 7/11 could enter normal diet, 4/11 to enter liquid diet, At the same time, the patients in social activities can communicate in a language daily, sensory function of skin flap and facial appearance has been satisfactory recovery.ConclusionConformal free forearm flap and free iliac bone is an ideal way to reconstruct the composite tissue defects of the floor of mouth and the lower part of face in the same period, not only safe, practical prognostic effect, and also can significantly improve the patients quality of life, which is worthy of reference and use.
ABSTRACT
<p><b>AIM</b>To study the effects of ginkgolides (Gin) on the expression of hypoxia inducible factor-1 (HIF-1alpha) in hypoxic/ischemic neurons.</p><p><b>METHODS</b>The gene expression of HIF-1alpha pretreated with or without Gin (37.5 microg/ml) was observed by RT-PCR on primary cultured cortical neurons in the condition of hypoxia and oxygen-glucose deprivation.</p><p><b>RESULTS</b>Some basic expression of HIF-1alpha mRNA were observed in cultured cortical neurons. The expression of HIF-1alpha mRNA increased after 24 h treatment with Gin. The level of HIF-la mRNA increased also after 1 h hypoxia and further enhanced after the pretreatment with Gin. The expression of HIF-1alpha mRNA decreased with the deprivation of both oxygen and glucose, which reversed after the pretreatment of Gin.</p><p><b>CONCLUSION</b>Gin could increase the expression of HIF-1alpha mRNA in hypoxic/ischemic cortical neurons.</p>