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14th Triennial Congress of the International Federation of Societies for Surgery of the Hand (IFSSH), 11th Triennial Congress of the International Federation of Societies for Hand Therapy (IFSHT)

17.06. - 21.06.2019, Berlin

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Role of arterial supply and veneous drainage of fasciocutanoeus pedicle in saphenous artery perforator-plus fasciocutaneous flap in rabbit

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  • presenting/speaker Jianwei Wei - The Second Xiangya Hospital, Central South University, Changsha, China
  • Zhonggen Dong - The Second Xiangya Hospital, Central South University, Changsha, China
  • Lihong Liu - The Second Xiangya Hospital, Central South University, Changsha, China
  • Ping Peng - The Second Xiangya Hospital, Central South University, Changsha, China
  • Zhaobiao Luo - The Second Xiangya Hospital, Central South University, Changsha, China
  • Chaodong Yin - The Second Xiangya Hospital, Central South University, Changsha, China

International Federation of Societies for Surgery of the Hand. International Federation of Societies for Hand Therapy. 14th Triennial Congress of the International Federation of Societies for Surgery of the Hand (IFSSH), 11th Triennial Congress of the International Federation of Societies for Hand Therapy (IFSHT), 11th Triennial Congress of the International Federation of Societies for Hand Therapy (IFSHT). Berlin, 17.-21.06.2019. Düsseldorf: German Medical Science GMS Publishing House; 2020. DocIFSSH19-940

doi: 10.3205/19ifssh0104, urn:nbn:de:0183-19ifssh01043

Published: February 6, 2020

© 2020 Wei et al.
This is an Open Access article distributed under the terms of the Creative Commons Attribution 4.0 License. See license information at http://creativecommons.org/licenses/by/4.0/.

Outline

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Objectives/Interrogation: Based on the models of saphenous artery septocutaneous perforator pedicled (SPP) flap and perforator-plus fasciocutaneous (SPF) flap in rabbit, the purpose of the present study is to illuminate the role of the fasciocutanoeus pedicle in arterial blood supply and venous drainage of the perforator-plus fasciocutaneous flap, and provide experimental evidences for optimal application of both flaps during operation.

Methods: The flaps harvested in twenty legs of 10 New Zealand rabbits were randomly divided into 2 groups: the perforator group including saphenous artery perforator flap (n=10), and the perforator-plus group including saphenous artery perforator-plus fasciocutaneous flap (n=10). The blood perfusions in five zone of both flaps were measured using Laser Doppler flowmeter before operation, and 1h, 6h, 1d, 3d, 5d, 7d and 10d postoperatively. The survival rates of both flaps was measured at 7 days postoperatively. The flaps harvested in 50 legs of 25 rabbits were randomly divided into 5 groups: group A consisting of the SAP flap (n=10), group B consisting of the SAPPE flap (n=10), group C consisting of fasciocutaneous flap without the perforator (n=10), group D consisting of the fasciocutaneous flap with perforator artery but without the perforator vein (n=10), and group E consisting of the fasciocutaneous flap with perforator vein but without the perforator artery (n=10). The survival rates of these flaps was measured at 7 days postoperatively.

Results and Conclusions: The blood perfusions in five zones of the flaps were not statistically significant at every time point between perforator group and perforator-plus group (P>0.05). The survival rates of the SAP flap and the SAPPE flap were 94.0%±11.8% and 96.7%±6.9%, respectively (P>0.05). The survival rates of groups A, B, C, D and E were 86.5%±18.2%, 97.7%±4.6%, 32.8%±26.8%, 60.8%±38.4% and 51.2%±31.3%, respectively (P<0.05). The survival rate was higher in group A than in group C, in group B than in group C and group E, and these differences were not statistically significant (P< 0.05).There is no statistically significant difference between other two groups (P >0.05).

Converting the SAP flap into SPF flap can not significantly improve both the survival rate and blood perfusion of the SAP flap. The perforator plays a key role in the survival of the SAPPE flap, and the fasciocutaneous pedicle plays a minor role. The fasciocutaneous pedicle is an approach for venous drainage in the SAPPE flap.