Publications by authors named "Joon P Hong"

Lateral ankle soft tissue defects pose challenges, especially in cases due to chronic pressure from cross-legged sitting, which usually present with a large dead space, small skin opening that often accompanies an open joint. Traditional reconstruction methods using fasciocutaneous flaps may result in donor site morbidity such as delayed wound healing or nerve injury. In this article, we present a case of diabetes-related lateral ankle defect successfully treated using adiposal layer only flap, also known as pure fat flap.

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Wound healing is a central physiological process that restores the barrier properties of the skin after injury, comprising close coordination between several cell types (including fibroblasts and macrophages) in the wound bed. The complex mechanisms involved are executed and regulated by an equally complex, reciprocal signalling network involving numerous signalling molecules such as catabolic and anabolic inflammatory mediators (e.g.

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Optimal reconstruction of weight-bearing plantar foot defects is challenging due to the need for relatively thin coverage with simultaneous durability. The medial plantar flap provides an excellent tissue match but is not always available or appropriate (Figure 1, 2). Microsurgical free flap reconstruction provides many options for coverage.

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In lymphedema, the accumulation of subcutaneous interstitial fluid is the most characteristic feature. Bioimpedance analysis (BIA) is a promising technique to measure the amount of body components using a noninvasive method. In this study, we determined the clinical significance of BIA parameters in upper limb lymphedema with surgical treatment such as lymphovenous anastomosis or vascularized lymph node transfer.

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: Recent advancements in breast cancer treatment have led to increased survival rates, prompting a shift towards addressing breast cancer-related lymphedema (BCRL). Despite the evolving role of lymphatic surgery in breast reconstruction, there is limited literature evaluating the current role of lymphatic surgery in breast reconstruction. This review aims to evaluate the state of lymphatic surgery in breast reconstruction, analyzing surgical techniques and proposing a multi-institutional algorithmic approach.

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Background:  This research aims to validate the proficiency and accuracy of the robotic microsurgery platform using rat femoral vessel model.

Methods:  A total of 256 rat femoral vessels were performed, half using robotic and the other by manual microanastomosis by eight microsurgeons with less than 5 years of experience given eight trials (rats) each. Vessel demographics, proficiency (duration of suture and Structured Assessment of Robotic Microsurgical Skills [SARMS]), and accuracy (patency and scanning electron microscopic [SEM]) were analyzed between the two groups.

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Vascularized lymph node transfer (VLNT) is an advanced surgical approach for secondary lymphedema (SLE) treatment, but tissue fibrosis around the lymph node flap (VLNF) inhibiting lymphangiogenesis is the biggest challenge undermining its therapeutic efficacy. This study explored the effects of periodic hyaluronidase (HLD) injection in reducing fibrosis and promoting lymphangiogenesis in 52 Sprague-Dawley rats with a VLNF over 13 weeks. The results demonstrated that HLD administration significantly enhanced swelling reduction, lymphatic drainage efficiency, and lymphatic vessel regeneration, with up to a 26% decrease in tissue fibrosis around the VLNF.

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Background:  As the number of extremity amputations continues to rise, so does the demand for prosthetics. Emphasizing the importance of a nerve interface that effectively amplifies and transmits physiological signals through peripheral nerve surgery is crucial for achieving intuitive control. The regenerative peripheral nerve interface (RPNI) is recognized for its potential to provide this technical support.

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 Lipedema is a chronic, incurable disorder characterized by painful fat accumulation in the extremities. While the application of liposuction in lipedema management has become increasingly popular, the safety and effectiveness of this approach remain contentious. Our systematic review and meta-analysis aimed to assess various liposuction modalities in lipedema management to verify their safety and efficacy.

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Introduction: Primary lymphedema is characterized by lymphatic dysplasia in which one variant is Milroy's disease. The association with congenital chylothorax is even rarer with poor outcome. This is the first report to utilize peripheral lymphovenous anastomosis (LVA) and lymph node to vein anastomosis (LNVA) for the management of such condition.

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Lipedema is a progressive connective tissue disease with enlargement of adipose tissue, fibrosis, fluid collection, and dermal thickening. Herein, we present a case of lipedema associated with skin hypoperfusion and ulceration in which soft tissue debulking with liposuction improved patients' symptoms. A 39-year-old female presented with asymmetric progressive initially unilateral lower limb swelling with severe pain with subsequent skin ulceration.

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The mammalian target of rapamycin (mTOR) inhibitors are used to prevent organ transplant rejection and are preferred over other immunosuppressants due to its low nephrotoxicity. However, mTOR inhibitors have been associated with various adverse effects including lymphedema. Although rare in incidence, previously known treatments for mTOR inhibitor-induced lymphedema were limited to discontinuation of related drugs and complex disruptive therapy with variable results.

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Előrehaladott szájüregi daganatok eltávolítása után kialakult kiterjedt szövethiányok helyreállítására funkciómegtartó céllal a leggyakrabban alkalmazott eljárás a mikrovaszkuláris technikával végzett szabad szövetátültetés. Hazánkban a felületes szájüregi hiányok helyreállítására a leggyakrabban választott szabadlebeny a radiális alkarlebeny. Elsősorban vastagabb vagy nagyobb kiterjedésű hiányokra alkalmazzuk az anterolateralis comblebenyt.

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Many young microsurgeons begin their careers at established hospitals where microsurgery resources are limited. This article shares the authors' experiences in overcoming challenges and establishing a microsurgery practice in a new hospital. Due to the lack of equipment, limited support from colleagues, absence of discussion partners, fear of failure, and unpredictable situations, many aspiring microsurgeons lose their motivation.

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Inflammation after surgical incisions is related to the degree of tissue damage. Healing with low inflammation is desirable, especially in patients with compromised healing potential. This experimental study was conducted to assess the degree of inflammatory reaction and scar formation from incisions made by an ultra-polished scalpel (UPS).

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Background:  Lymph nodes may play a potential role in lymphedema surgery. Radiologic evaluation of nodes may reveal the status of pathologic conditions but with limited accuracy. This study is the first to evaluate the efficacy of ultrasound in detecting functioning nodes in lymphedema patients and presents a criterion for determining the functionality of the lymph nodes.

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Diabetic foot ulcer represents the primary cause of hospital admissions, amputations, and mortality in diabetic patients. The development of diabetic foot ulcers is influenced by peripheral neuropathy, infection, and ischemia, with diabetes contributing to peripheral artery disease. Free tissue transfer combined with revascularisation of the lower extremity provides the potential opportunity for limb salvage in individuals with lower extremity defects due to critical limb ischemia and diabetic foot.

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