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J Reconstr Microsurg 2024; 40(06): 423-434
DOI: 10.1055/s-0043-1777325
DOI: 10.1055/s-0043-1777325
Original Article
Perfusion Dynamics during Secondary Flap Debulking with Liposuction
Funding None.
Abstract
Background Lower extremity trauma often necessitates reconstruction with flap transfer. One of the reconstructive goals is a thin soft tissue coverage with appropriate contour. Therefore, a secondary debulking of the flap is usually performed.
Methods Debulking through conventional lipectomy is compared with liposuction followed by excision of the defatted flap excess. Demographic data, surgical details, and postoperative outcomes are compared and analyzed. The perfusion dynamics of the flaps undergoing liposuction debulking are studied by means of perioperative indocyanine green fluorescence angiography, as well as postoperative laser Doppler imaging.
Results Patients undergoing lipectomy (n = 69; 57.5%) or liposuction (n = 51; 42.5%) debulking had a similar rate of postoperative complications. Partial necrosis was observed in 7.2% (lipectomy) versus 7.8% (liposuction) of flaps. Fluorescence angiography showed a substantial decrease in flap perfusion following the infiltration with an epinephrine-containing tumescent solution (74.3% ± 8.2% prior to infiltration versus 16.8% ± 7.1% after infiltration; p < 0.001), resulting in a dark flap appearance. Laser Doppler imaging confirmed the hypoperfusion on postoperative day 1.
Conclusion Secondary debulking of a lower extremity flap can be safely and efficiently performed through liposuction combined with peripheral excision of the defatted flap in a single stage. Perfusion studies may show a misleading hypoperfusion of the defatted flap, which does not accurately predict subsequent necrosis or complications.
Keywords
indocyanine green - fluorescence angiography - perfusion dynamics - reconstructive microsurgery - debulking - liposuctionPublication History
Received: 12 May 2023
Accepted: 13 October 2023
Article published online:
13 December 2023
© 2023. Thieme. All rights reserved.
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