THE VASCULAR ANATOMICAL STUDY OF THE DISTAL PERFORATOR ULNAR ARTERY

Khải Phan Xuân, Vinh Phạm Quang

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Abstract

Introduction: Treatment of soft tissue defect in the wrist and hand remains challenging for orthopaedic surgeons. Research on the vascular anatomy of perforator flaps to cover this area is very important and necessary. Objective: The purpose of this study was to clarify the vascular anatomy of the distal perforator ulnar artery. Method: Serial cases study. An anatomic dissection of the distal perforator ulnar artery was performed in sixteen forearms from fresh human cadavers. Results: There were 3,25 ± 1,0 ulnar artery perforators. The average external diameter was 0,56 mm ± 0,14. The mean superficial perforator pedicle length was 19,0 ±2,6 mm. In 100 % (16 of 16) of the specimens, we found at least 1 perforator, which we marked as P2–3 (2-6 cm above pisiform). The proximal perforators are also larger than distal perforators. Extensive anastomoses were found between the ulnar artery perforators and multiple adjacent source arteries. Conclusion: The presence of perforators at 2-6 cm above pisiform was constant. Knowledge of the vascular anatomy of the distal perforator ulnar artery helps surgeon design and harvest flaps efficiently and safely.

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References

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