Alexis T Laungani

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BACKGROUND Pedicled perforator flaps in the thoracic and lumbar regions allow reconstruction of the posterior trunk. They enable reconstruction of various local defects without microvascular anastomoses and with minimal donor-site morbidity and excellent cosmesis. The authors examined the locations of perforators in the lumbar and thoracic regions. (More)
BACKGROUND The area perfused by a single perforator depends on its perforasome and its unique interperforator flow pattern. The purpose of this study was to clarify the interperforator flow patterns of the peroneal and posterior tibial artery perforators using three-dimensional computed tomographic angiography. METHODS Thirteen whole-leg skin flaps were(More)
PURPOSE To study the intraosseous 3-dimensional microvasculature of the capitate bone using a novel high-resolution micro-computed tomography (μCT) imaging technology, and to examine the blood supply as it relates to the most common fracture types. METHODS Ten cadaveric wrists were injected with a lead-based contrast agent. The capitates were harvested(More)
BACKGROUND The purpose of this study was to use micro-computed tomography to demonstrate the intraosseous vascularity of the lunate within a three-dimensional orientation to identify areas of greatest perfusion and define vascular "safe zones" for surgical intervention. METHODS Fourteen upper extremities were injected with a lead-based contrast agent. The(More)
inTRoDuCTion: Oxygen is a potent modulator of cell function and wound repair in vivo. Hypoxia can enhance the production of specific extracellular matrix components and increase angiogenesis through the hypoxia-inducible factor-1 pathway. However, in vivo, very few cells within the body experience ambient (21%) oxygen tension. Thus, for clinically relevant(More)
BACKGROUND Single-stage breast reconstruction following skin-sparing or nipple-sparing mastectomy with free deep inferior epigastric perforator (DIEP) flap usually does not require a large skin paddle. Most of the flap skin paddle is removed, and the flap is placed under native, conserved skin to provide adequate volume to the reconstructed breast mound. We(More)
Background Intrinsic flaps based on the dorsal metacarpal arteries are useful for coverage of dorsal hand, finger, and thumb defects. The purpose of this study was to explore the anatomy of the dorsal metatarsal arteries (DMtAs) in the foot to help define their clinical utility. We observed the size and numbers of distal perforators from the DMtAs and(More)
Background Perforator flaps remain challenging in their design, especially as free flaps. We used a cadaveric model to help refine the design of perforator flaps by studying their vascular features. We define the angle of perfusion of a perforator as a tool to achieve safer flap designs. Methods A total of 83 flaps were designed from 20 fresh cadaveric(More)
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