PURPOSE Although most researchers agree that platelet-rich plasma (PRP) is a good source of autogenous growth factors, its effect on bone regeneration is still controversial. The purpose of this study was to evaluate whether increasing angiogenic factors in the human PRP to enhance new bone formation through rapid angiogenesis. MATERIAL AND METHODS In vitro, the human platelets were activated...

BACKGROUND Asian aesthetic surgery has become increasingly popular over the last decade, especially augmentation of characteristically flattened facial features. Alloplastic implants are an option for facial augmentation, however many avoid their use due to concerns for morbidity associated with their use. OBJECTIVES To validate our hypothesis that when used properly, alloplastic implants hav...

Alloplastic implants have been used to repair orbital wall fractures in most cases. Orbital hemorrhage is a rare complication of these implants and has been reported rarely in Korea. The purpose of this article is to report a late complication case focusing on their etiology and management. A 20-year-old male patient underwent open reduction with Medpor (porous polyethylene) insertion for bilat...

KC: keratinocyte carcinoma SCC: squamous cell carcinoma INTRODUCTION The care of patients with aggressive keratinocyte carcinomas (KCs), including squamous cell carcinoma (SCC) and basal cell carcinoma, is often multidisciplinary and includes dermatologic surgeons, plastic surgeons, otolaryngologists, and other surgical subspecialties. Complex reconstructions might require osteosynthetic materi...

Reconstruction of the extensor mechanism is essential for good extremity function after endoprosthetic knee replacement following tumor resection. Only a few biological methods have been able to reliably restore a functional extensor mechanism, but they are often associated with significant complication rates. Reattachment of the patellar tendon to the prosthesis using an alloplastic patellar l...

Porous polyethylene (PP or Medpor®) is an alloplastic material used worldwide for craniofacial reconstruction. Although several clinical studies are available, how this material alters osteoblast activity to promote bone formation is poorly understood. To study how PP can induce osteoblast differentiation in mesenchymal stem cells, the expression levels of bone related genes and mesenchymal ste...

Craniomaxillofacial reconstruction using virtual surgical planning, computer-aided manufacturing, and new microsurgical techniques optimizes patient-specific and defect-directed reconstruction. A 3D customized free deep circumflex iliac artery (DCIA) flap with intraoral anastomoses was performed on a 23-year-old man with a posttraumatic right zygomatico-maxillary defect with failure of alloplas...

The term "endo-perio" lesion has been proposed to describe the destructive lesion resulting from inflammatory products found in varying degrees in both the periodontium and the pulpal tissues. In most of the cases, clinical symptoms disappear following successful endodontic therapy. However failure after conventional root canal treatment calls for surgical intervention. A 35 year old male patie...

This article focuses on the discussion of the risks, benefits, and limitations of the three principal methods for facial volumization: fat grafting, injectable fillers, and alloplastic implants. By understanding these issues, a surgeon can better discuss what would be ideal for a particular patient. Fat grafting offers, the most cost-effective solution to a patient with sufficient volume loss. ...

Proplast, a vitreous, carbon-Teflon, fluorocarbon polymer, was tested in rabbits for corneal tolerance and acceptance. Toxicity, vascularization, epithelialization, infection, and extrusion were studied clinically and histologically. Four techniques were used: implantation of irregular-shaped pieces of material in an interlamellar corneal pocket, lamellar graft implantation with one exposed sur...