Local perforator flaps have evolved over the time to provide complete and stable coverage of soft tissue defects. Technical advances and experience with the perforator flaps have allowed the harvest of local perforator flaps in a free style manner by offering greater freedom in flap selection. We have proposed a technical modification in the harvest of a perforator flap by relo-cating the perfo...

three species belonging to three genera of the family tylenchidae, namely, cephalenchus leptus, eutylenchus excretorius, and lelenchus leptosoma were discovered as first reports for iran's nematode fauna. they were characterized by morphological, morphometric and molecular phylogenetic studies. the two latter genera are new for iran. iranian population of cephalenchus leptus is characterized by...

BACKGROUND Reconstruction of soft tissue defects in the lower third of the leg remains challenging. Anatomical constraints limit the local options available for complex defects especially lower third of leg. Local flaps based on perforator vessels are raising interest in reconstructive surgery of the limbs. We present our experience with perforator flaps for reconstruction of soft tissue def...

Refinement of the performance a fully constrained oscillating-foil turbine is carried out via addition passive double Gurney flaps. Flaps ranging from hGF=0.005c to 0.075c are added at trailing edge NACA 0015 blade turbines operating in high-efficiency regimes without leading-edge vortex shedding (LEVS). Performance improvements determined using 2D numerical simulations with an unsteady Reynold...

BACKGROUND Combined flaps serve a unique niche when significant or multidimensional defects need to be corrected. Perforator flaps have become a new alternative for achieving this same objective. As this latter genre evolves, it is reasonable to also expect the development of combined perforator flaps. METHODS Combined flaps based on perforators, as with any other combined flaps, can be class...

Background Free-style flaps allow surgeons to overcome anatomical variations and raise perforator flaps wherever a pulsatile signal can be detected. We performed a systematic review and meta-analysis to identify the risk factors for complications and indications for free-style flaps in soft-tissue defect reconstructions. Methods This study was conducted according to the Preferred Reporting It...

BACKGROUND Despite the most heroic efforts, sometimes free flaps fail. Perforator free flaps are not invincible and can suffer the same fate. The real challenge is how to decide what is the next best choice for achieving the desired outcome. METHODS Over the past decade, 298 free perforator flaps were used in our institution. Total failure occurred in 16 patients, and partial failure requirin...

An important and vital area of the head &neck entail the coverage of defects throughout the head and neck area. These defects usually covered by flaps, during the last 6 decades since the introduction of tube pedicle flap till the early sixty of the last century (Macgregor 1960) advocated his temporal fascial flap for coverage of intra oral defect after radical cancer surgey, this flap was a gr...