BACKGROUND The purpose of this study was to compare postoperative morbidities and functional outcomes of pectoralis major myocutaneous (PMMC) flap and cutaneous free flap reconstruction approaches in hypopharyngeal squamous cell carcinoma patients. METHODS We retrospectively reviewed records from 99 patients who underwent hypopharyngeal reconstruction with a cutaneous free flap (n=85) or PMMC...

Rectangular flaps on the rat or mouse dorsum are frequently used for flap survival elongation research. However, since rectangular flaps are purely random, the survival rate varies among individuals. A reliable animal flap model with low individual variation is desirable for flap survival research, especially in the angiogenic field. We investigated the survival rate of paired flaps in the rat ...

Dna2 is a nuclease/helicase with proposed roles in DNA replication, double-strand break repair and telomere maintenance. For each role Dna2 is proposed to process DNA substrates with a 50-flap. To date, however, Dna2 has not revealed a preference for binding or cleavage of flaps over single-stranded DNA. Using DNA binding competition assays we found that Dna2 has substrate structure specificity...

Achieving adequate coverage of soft tissue defects located on the lower third of the legs and feet is challenging for reconstructive surgeons. Fasciocutaneous flaps can be used to meet this challenge. Two common fasciocutaneous flaps used in this context are the reverse sural flap and lateral supramalleolar flap (LSMF). Plastic and reconstructive surgeons are relatively unfamiliar with the seco...

The design of circulation control (CC) dual radius flap systems were investigated to characterize the parameters that make up the flap surface to offer further knowledge into the CC field of study. Multiple dual radius flap geometries, along with variants, were developed by varying specific flap parameters from a baseline configuration that had previously developed. The aerodynamics of the diff...

Trilobed flaps have demonstrated utility in the reconstruction of lower nasal defects. An understanding of the flap dynamics, particularly when compared to and contrasted with that of the dorsal nasal flap, enable the surgeon to employ this flap in a variety of circumstances. This paper describes the use of this flap and demonstrates its benefit through detailed figures. Introduction Partial th...

The distal third of the tibia, ankle and heel area is difficult to reconstruct. For small to medium size defects, local flaps are often an easier alternative than free flap. In lower limb surgery, the sural flap is based on this principle and this flap is becoming increasingly popular. The distally based superficial sural artery flap, first described as a distally based neuro skin flap by masqu...

An electrically controlled rotor (ECR), also known as a swashplateless rotor, is an active system that reduces the vibration load of through control while achieving primary by using trailing edge flap instead swashplate. In this study, effect 2Ω higher-order harmonic input on ECR investigated. First, analytical aeroelastic model established based Hamilton’s principle and unsteady aerodynamic wi...

BACKGROUND The purpose of this study was to compare patient satisfaction following unilateral pedicled transverse rectus abdominis myocutaneous (TRAM) and free abdominal flap reconstruction. METHODS Patients who underwent unilateral breast reconstruction using pedicled TRAM or free abdominal flaps (muscle-sparing TRAM or deep inferior epigastric perforator flap) and completed the BREAST-Q wer...