Background: Reconstruction of eyelid margin defects following resection of upper-eyelid skin malignancies is typically performed using a lower eyelid switch flap, including eyelash reconstruction. However, a subsequent procedure for flap separation, and prolonged swelling of the flap may occur as a complication.
Objective: The authors performed anterior lamellar reconstruction using a sliding flap with excess upper eyelid skin, a procedure that is a less invasive and simpler.
Venous leg ulcers (VLUs) caused by chronic venous insufficiency are difficult to treat. Outcomes after compression therapy and the current standard of care often used in conjunction with other options vary widely. We examined the effects of foam inserts on sub-bandage pressures in patients with VLUs and compared use of foam inserts in elastic and inelastic compression bandaging.
View Article and Find Full Text PDFWe present an extracellular matrix (ECM)-based gradient generator that provides a culture surface with continuous chemical concentration gradients created by interstitial flow. The gelatin-based microchannels harboring gradient generators and in-channel micromixers were rapidly fabricated by sacrificial molding of a 3D-printed water-soluble sacrificial mold. When fluorescent dye solutions were introduced into the channel, the micromixers enhanced mixing of two solutions joined at the junction.
View Article and Find Full Text PDFWe present an extracellular matrix (ECM)-based stretchable microfluidic system for culturing in vitro three-dimensional (3D) vascular tissues, which mimics in vivo blood vessels. Human umbilical vein endothelial cells (HUVECs) can be cultured under perfusion and stretch simultaneously with real-time imaging by our proposed system. Our ECM (transglutaminase (TG) cross-linked gelatin)-based microchannel was fabricated by dissolving water-soluble sacrificial polyvinyl alcohol (PVA) molds printed with a 3D printer.
View Article and Find Full Text PDFBackground: Oncoplastic lower eyelid reconstruction is a challenging task due to the complicated structure of the eyelid and requirement of high operative accuracy. Poorly treated defects result in ectropion and ptosis which may lead to keratitis and corneal ulceration. Previous related studies do not include a detailed comparison of the common reconstructive methods of the lower eyelid in terms of results and complication rates.
View Article and Find Full Text PDFIntroduction: Patients with craniosynostosis with shortened occipitofrontal diameter are mainly treated with posterior cranial vault distraction osteogenesis (PVDO) in our institution. If further intracranial volume (ICV) expansion is needed, additional treatment with frontal orbital advancement (FOA) is done. On the contrary, frontal orbital remodeling (FOR) is done for better aesthetic results.
View Article and Find Full Text PDFBackground: Infantile hemangioma (IH) is a benign neoplasm that causes scarring and cosmetic problems after spontaneous regression. Therefore, aggressive treatments such as laser irradiation and corticosteroid have been used; however, recently, the effect of propranolol has been widely noticed. In this study, the authors applied propranolol to low-birth-weight infants with IHs and evaluated its effect.
View Article and Find Full Text PDFPosterior cranial vault distraction is considered to be more effective for increasing intracranial volume than fronto-orbital advancement or anterior cranial vault expansion, but the changes in intracranial volumes after posterior cranial vault distraction remain unclear. The changes in intracranial volume were investigated in patients of premature craniosynostosis treated by this technique. Seven patients, 3 boys and 4 girls aged from 5 months to 3 years 3 months (mean 23 months) at operation, with craniosynostosis underwent posterior cranial vault distraction at Juntendo University Hospital from 2011 to 2014.
View Article and Find Full Text PDFTwenty years have passed since distraction osteogenesis was introduced into the field of craniomaxillofacial surgery, with distraction osteogenesis gradually consolidating its position for midface advancement in syndromic craniosynostosis. On the other hand, no consensus has been reached regarding its adaptation to calvarial bone. We reported that distraction osteogenesis was useful in posterior cranial vault expansion, and subsequently, similar reports have been successively observed worldwide.
View Article and Find Full Text PDFBackground: β-Tricalcium phosphate (β-TCP) is used clinically as a bone substitute, but complete osteoinduction is slow. Basic fibroblast growth factor (bFGF) is important in bone regeneration, but the biological effects are very limited because of the short half-life of the free form. Incorporation in gelatin allows slow release of growth factors during degradation.
View Article and Find Full Text PDFJ Neurosurg Pediatr
December 2012
An otherwise healthy, developmentally normal 3-week-old male infant presented with complex multisuture craniosynostosis involving the metopic suture and bilateral coronal sutures with frontal prominence and hypotelorism. Frontal craniectomy and bilateral frontoorbital advancement remodeling were performed at the age of 5 months. The postoperative course was uneventful.
View Article and Find Full Text PDFBackground: Craniosynostosis is a relatively rare disease. Recently, several studies have investigated the etiology of craniosynostosis using animal models; however, the etiology remains unknown. In this study, we examined transforming growth factor (TGF) βs immunostaining from coronal sutures in patients with plagiocephaly.
View Article and Find Full Text PDFBackground: In cases of surgery for syndromic craniosynostosis with posterior flattering, it is not possible to achieve sufficient expansion of the skull through fronto-orbital advancement alone. Although it is necessary to expand the occipital region, the surgery is risky and highly invasive. We applied the distraction osteogenesis technique for skull expansion and performed occipital expansion and fronto-orbital advancement in succession.
View Article and Find Full Text PDFJ Craniofac Surg
November 2008
A nasal bone fracture is usually repositioned using either Walsham or Asch forceps. However, accurate repositioning is often difficult. We therefore performed a repositioning technique using the little finger in 10 patients with a new nasal fracture.
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