Diffraction by a strip with one face soft and the other face hard boundary condition is modeled numerically using finitedifference time-domain method and the results are compared against method of moments which was validated against physical theory of diffraction.

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Reconstruction of the heel region poses great challenge to plastic surgeons not only due to calcaneal bone lying just deep to the subdermal fat pad but also due to easily exposed Achilles tendon. In order to achieve permanent closure of the heel defect, exposed bone or tendon—or both—should be covered with durable, preferably sensate, well-vascularized, thin skin flaps. Even though fasciocutaneous free flaps remain the gold standard in the reconstruction of heel defects with exposed bone or tendon, a significant number of these patients are older individuals with multiple comorbidities such as diabetes mellitus, hypertension, atherosclerosis, and peripheral vascular disease. In this study, with a clinic series consisting of 6 patients (1 female, 5 males), we present a new technique of reconstruction with a bipedicled flap as a safe, reliable, and efficient reconstructive modality in the treatment of heel defects in cases where free flaps and other more sophisticated reconstructive options are either not feasible or have failed. Achieving complete reconstruction of defects in all 6 patients, this technique proves to be successful as a salvage procedure in reconstruction of heel defects.

Gold weight implantation is generally considered a safe procedure for the treatment of paralytic lagophthalmos. The most frequently seen complications are extrusion, malpositioning, and migration of the implant. To decrease the rate of these complications, several modifications were defined in the composition and the shape of the implant as well as the surgical technique itself. Despite these precautions, implant revision rates are still as high as 8% to 14%. Nowadays, implant-covering or implant-wrapping procedures are becoming more popular to avoid implant-related problems. However, there is limited information in the literature regarding the management of these complications. In this study, we aimed to present the treatment of migration and extrusion of the gold weight implant in a patient with Moebius syndrome by wrapping the implant with autogenous fascia lata graft.