Abstract: Objective To evaluate the safety of L-shaped polyethylene sheet implant for nasal elongation. Methods From January 2007 to December 2009, 78 patients received nose elongation were concluded for retrospective study. 38 patients received L-shaped polyethylene sheet implantation were involved in observation group, while 40 patients without polyethylene sheet implantation were involved in control group. All occurring complications were recorded. The incidence of complications was analyzed by Fisher's test. Results Patients were followed up for average 30.6 months (18 months to 5 years). In observation group, the incidence of complications was 7.8 %, and one major complication was observed during the follow-up period. In control group, the incidence of complications was 12.5% without major complication. The exact probability showed no significant difference between the observation and control group. Conclusion The high density polyethylene is a kind of safe and effective implant material for nasal elongation.

Key words: Nasal elongation, Polyethylene, Safety