To perform basic research on infective wounds, we need simple and persistent infective models. When a liquid medium mixed with Staphylococcus aureus was injected subcutaneously, infection resolved within 3 days. We applied the semi-liquid medium in addition to agar, which produced favorable results. So, we present this simple model. When we injected the semi-liquid medium including S. aureus (5 × 10⁸ units / ml), colony formation occurred within 3 days as agar was an obstacle to cellular infiltration. On Day 5, the number of colonies increased and an abscess formed. The size of the abscess depended on the number of S. aureus. Infections were observed on the abdomen, back, and head. Infection persisted for 9 days. Taken together, this model is simple and useful, involving a simply prepared semi-liquid medium, which produced a one-week, persistent infection.

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There are various methods for treatment of ingrown toenails. The aim of surgery is to remove a partial germinal matrix completely but less invasively. A new less invasive surgical approach, partial germinal matrix excision using operative microscope, is reported here. 181 lesions of 132 ingrown toenails in 117 patients were treated with this method. Under operative microscope, the germinal matrix was excised completely but less invasively. There was neither recurrence nor spicule formation, and the time required for wound healing was about 2 weeks. This method is less invasive compared with traditional methods, and the both postoperative pain and morbidity are decreased. This is an alternative useful method for ingrown toenails.

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Critical limb ischemia (CLI) is the most advanced form of peripheral arterial disease. Plastic surgeons are having more and more opportunities to examine such patients.
In the absence of timely revascularization, CLI carries a high risk of mortality and amputation. Revascularization by either bypass surgery or percutaneous transluminal angioplasty (PTA) is considered the first-choice treatment in patients with CLI. Over the past decade, endovascular revascularization has rapidly become the preferred primary treatment strategy for CLI, especially for the treatment of below-the-knee disease. However, the optimal revascularization strategy in patients with CLI is unclear. Treatment of a patient with CLI is challenging and requires a multi-disciplinary approach to achieve effective management that involves a team of individuals proficient in various aspects of vascular disease, so we took the initiative in establishing a wound care center in 2009. On sharing the algorithm with the team, treatments for the salvage of critically ischemic legs go smoothly.

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