المؤلفون: Daheui Kim, Jun Hyeok Lee, Min Suk Park, Ma Rhip Ahn, Daiwon Jun, Jung Ho Lee

المصدر: Bioengineering, Vol 11, Iss 3, p 241 (2024)

مصطلحات موضوعية: free tissue transfer, pedicle exposure, reprocessed micronized dermal substitute, lower extremity reconstruction, Technology, Biology (General), QH301-705.5

الوصف: Lower extremity reconstruction is challenging because of its intricate anatomy and dynamic biomechanics. Although microsurgical free tissue transfer offers pivotal solutions to limited local tissue availability, vascular pedicle exposure after free tissue transfer is common. We evaluated a novel method of managing pedicle exposure after free tissue transfer using a reprocessed micronized dermal substitute. Ten patients who underwent lower-extremity reconstruction using free tissue transfer and micronized dermal substitute between January and December 2023 were retrospectively reviewed. When native tissue could not be closed over the pedicle, reprocessed micronized artificial dermal matrix (rmADM) was cut and stacked to protect and stabilize it. Epithelialization was achieved by secondary skin grafting or healing by secondary intention. Flap dimensions, recipient artery and vein, ADM size, time required for granulation tissue maturation and complete epithelialization, and flap outcomes were analyzed. The mean age was 55.80 ± 20.70 years, and six patients (60%) were diabetic. The mean rmADM coverage area was 8.70 ± 8.41 cm2, and the average time required for complete epithelialization was 50.89 ± 14.21 days. Except for one total necrosis due to bypass graft failure, nine limbs were successfully salvaged. Application of rmADM offers numerous advantages, including vascular collapse prevention, moisture maintenance, granulation tissue growth promotion, and pedicle stabilization.

وصف الملف: electronic resource

Relation: https://www.mdpi.com/2306-5354/11/3/241; https://doaj.org/toc/2306-5354

URL الوصول: https://doaj.org/article/f9d1c4b3edd740aaaecb863a6f9b286d

المؤلفون: Seong Yeon Kim, Ma Rhip Ahn, Young Chul Suh, Young Jin Kim, Jung Ho Lee

المصدر: Archives of Aesthetic Plastic Surgery, Vol 25, Iss 3, Pp 89-94 (2019)

مصطلحات موضوعية: blepharoplasty, eyelids, myocutaneous flap, Surgery, RD1-811

الوصف: Background Subbrow blepharoplasty (SBB) has advantages over traditional blepharoplasty in that it results in more natural-looking creases and contours and is more effective for lateral periorbital rejuvenation. However, in older patients with sunken upper eyelid, this procedure might make the superior eyelid sulcus appear worse because the thicker upper eyelid tissue in the subbrow area is replaced by thinner tissue. To overcome this limitation, we developed a de-epithelialized musculocutaneous flap for SBB. Methods From August 2016 to January 2018, 13 patients with sunken upper eyelid deformity underwent SBB. For each of these patients, a typical SBB incision was made, but the tissue usually removed in SBB was dissected as a flap based on the branch of the ophthalmic vessel. After elevation, the flap was transposed or folded to correct the sunken deformity. The results were assessed by the patients themselves and by three plastic surgeons at 6 months postoperatively. Results The mean age of the patients was 63 years (range, 47–81 years). There were no postoperative complications related to wound dehiscence, hypertrophic scarring, or sensory changes. All patients and plastic surgeons provided scores indicating good to excellent results and were satisfied with the cosmetic outcomes. All patients reported improved functional visual acuity after surgery. Conclusions Our technique is simple and effectively addresses both sunken upper eyelid deformity and dermatochalasis. Unlike fat or dermofat grafting, our new technique does not require an additional donor site, and it is more reliable in terms of vascularity.

وصف الملف: electronic resource

Relation: http://e-aaps.org/upload/pdf/aaps-2019-01760.pdf; https://doaj.org/toc/2234-0831; https://doaj.org/toc/2288-9337

URL الوصول: https://doaj.org/article/506ffd55969c478e8e61a7e5b01f2afa

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