Monday, November 30, 2020

Salvaging exposed microtia cartilage framework with negative pressure wound therapy.

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Salvaging exposed microtia cartilage framework with negative pressure wound therapy.

J Plast Reconstr Aesthet Surg. 2020 Nov 23;:

Authors: Sasaki K, Sasaki M, Oshima J, Nishijima A, Aihara Y, Sekido M

Abstract
One of the most severe complications of auricular reconstruction for microtia is exposure of the cartilage framework. Recently, negative pressure wound therapy (NPWT) has become popular for a variety of complex wounds but reports on methods for microtia reconstruction are scarce. Thus, we aimed to detail the use of NPWT for cartilage exposure in microtia reconstruction. We retrospectively analyzed 7 cartilage exposure wounds in 6 patients treated by NPWT after auricular reconstruction for microtia. All wounds appeared from postoperative days 3 to 30 with 3 on the antihelix, 2 on the helix, 1 on the triangular fossa and 1 on the scaphoid fossa. Skin defect sizes ranged from 1 to 24 mm2 and 2 cartilage frames were infected at onset. Our NPWT system was the KCI Negative Pressure Wound Therapy with V.A.C.Ⓡ GranuFoam Black™ or Silver™ and continuous suction was applied in a range of 25-125 mmHg. All wounds healed within 8 to 39 days with NPWT antecedent cases taking longer than surgery ones. All cartilage frames survived but partial cartilage atrophies remained in 4 cases. Although a secondary infection occurred in an NPWT antecedent case it was still useful as a continuous external drainage system to remove dead space exudate and stimulate granulated tissue formation. In addition to vigilance against secondary infection, surgeons should consider an additional surgical intervention if the wound fails to improve within 7 days.

PMID: 33248937 [PubMed - as supplied by publisher]

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