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Original Article

Distal anastomosis patterns of the descending branch of the lateral circumflex femoral artery

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Pages 167-170 | Received 27 Jul 2015, Accepted 23 Nov 2015, Published online: 06 Feb 2016
 

Abstract

Background: The reverse anterolateral thigh (ALT) flap has shown good results in the treatment of patients who have skin and soft tissue defects around the knee and shin. The objective of this study was to show the anastomotic patterns of the descending branch of lateral femoral circumflex artery (db-LCFA) and locate the appropriate pivot point for reverse ALT flap.

Materials and methods: Fifty thighs from 25 embalmed cadavers from the Anatomy Department, Khon Kaen University in 2012, were dissected. The patterns of distal anastomoses of db-LCFA were recorded and appropriate pivot points for the reverse ALT flap were measured.

Results: Three patterns of distal anastomosis of the db-LCFA were identified, including the anastomoses to the superolateral genicular arteries (46%), anastomoses to the profunda femoral arteries (28%), and unidentified distal anastomoses (26%). The mean distance of the pivot point was 9.4 ± 3.7 cm from the lateral epicondyle. The mean pedicular length was 13.2 ± 5.4 cm (mean ± SD). Most cadavers, 76%, showed a single db-LCFA. In cases where there was more than one db-LCFA, the distal anastomoses were found to be originating from the most medial db-LCFA.

Conclusion: The reverse ALT flap technique showed good results in the treatment of patients with skin and soft tissue defects around the knee and shin. Variations of the anastomoses and branching patterns of the db-LCFA may influence flap survival. Additional preoperative vascular evaluations would be helpful in defining the most compatible area from which to harvest the flap.

Declaration of interest

The authors report no conflicts of interest. The authors alone are responsible for the content and writing of the paper.

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