title: Current status of grafts and implants in rhinoplasty: Part II. Homologous grafts and allogenic implants.
abstract: OBJECTIVE
  After reading this article, the participant should be able to: 1. Understand the challenges in restoring volume and structural integrity in rhinoplasty. 2. Identify the appropriate uses of various homologous grafts and allogenic implants in reconstruction, including: (a) freeze-dried acellular allogenic cadaveric dermis grafts, (b) irradiated cartilage grafts, (c) hydroxyapatite mineral matrix, (d) silicone implants, (e) high-density polyethylene implants, (f) polytetrafluoroethylene implants, and (g) injectable filler materials. 3. Identify the advantages and disadvantages of each of these biomaterials. 4. Understand the specific techniques that may aid in the use these grafts or implants.
  
  
  CONCLUSIONS
  This review specifically addresses the use of homologous grafts and allogenic implants in rhinoplasty. It is important to stress that autologous materials remain the preferred graft material for use in rhinoplasty, owing to their high biocompatibility and low risk of infection and extrusion. However, concerns of donor-site morbidity, graft availability, and graft resorption have motivated the development and use of homologous and allogenic implants.
authors.affiliation: Division of Plastic and Reconstructive Surgery, University of Pittsburgh Medical Center, Pittsburgh, PA, USA. sajjadiana@yahoo.com
authors.forename: Ali
authors.initials: A
authors.lastname: Sajjadian
authors.forename: Nima
authors.initials: N
authors.lastname: Naghshineh
authors.forename: Roee
authors.initials: R
authors.lastname: Rubinstein
mesh_terms: D001672:Biocompatible Materials / Q000627:therapeutic use; D003094:Collagen / Q000627:therapeutic use; D017886:Durapatite / Q000627:therapeutic use; D006801:Humans; D011138:Polytetrafluoroethylene / Q000627:therapeutic use; D019736:Prostheses and Implants; D012225:Rhinoplasty / Q000295:instrumentation; D017768:Skin, Artificial; D014184:Transplantation, Homologous
chemical_list: C440568:Alloderm; D001672:Biocompatible Materials; D011138:Polytetrafluoroethylene; D003094:Collagen; D017886:Durapatite