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- W2315171604 abstract "INTRODUCTION: Complex digital extensor tendon injuries are frequently associated withlong-term reduction in hand function. Such injuries may result in deposition of dense scar tissuethroughout anatomical tissue planes, adhesion formation between injured structures andcontracture of the extensor mechanism. While reconstruction of individual anatomical componentsis feasible, re-establishing a gliding plane for tendon excursion remains a challenge. The presentstudy aimed to demonstrate the microvascular supply to a composite flap comprising skin,subcutaneous tissue and extensor retinaculum including the intervening areolar gliding planes as asingle unit for reconstruction of compound extensor injuries to the hand. METHODS: An anatomical study was performed comprising the upper limbs (n=18) of freshfrozen cadavers. The anterior interosseous artery (n=9) or posterior interosseous artery (n=9) wasselectively cannulated at the origin and injected with coloured dye for microvascular dissection ofthe proposed flap tissue at the extensor retinaculum. The vessels were then injected with aradiopaque medium for time-rendered digital subtraction angiography and cone-beam computedtomography angiography with multiplanar reconstructions to visualise the patterns ofmicrovascular perfusion of the extensor retinaculum and overlying integument. RESULTS: Both the anterior and posterior interosseous arteries contributed vascular supplyto the extensor retinaculum, demonstrating a dense network of vessels associated with thisstructure. The anterior interosseous artery was consistently the dominant vessel, perfusing largeperforator vessels through the septum between the second and third as well as the fourth and fifthextensor compartments. The posterior interosseous artery supplied perforator vessels to the fourthand fifth extensor compartment and overlying skin, in addition to the well described proximalforearm angiosome territory. Both posterior and anterior interosseous arteries supplied vesselslocated between fourth and fifth extensor compartments." @default.
- W2315171604 created "2016-06-24" @default.
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- W2315171604 date "2016-01-01" @default.
- W2315171604 modified "2023-09-27" @default.
- W2315171604 title "The free vascularised extensor retinaculum composite flap - an anatomical basis for a new means in reconstruction of complex extensor tendon injuries and its sequele" @default.
- W2315171604 hasPublicationYear "2016" @default.
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