Reverse Posterior Interosseous Artery Flap: Indications, Technique, and Complications in 18 Consecutive Cases

Area of Science:

• Orthopedics
• Plastic Surgery
• Microsurgery

Background:

• Soft-tissue defects in the distal upper limb present reconstructive challenges.
• The posterior interosseous artery flap is a potential solution for these defects.

Purpose of the Study:

• To evaluate the success rate, predictability, reliability, and safety of the reverse posterior interosseous artery flap.
• To assess its efficacy in reconstructing distal upper limb soft-tissue lesions.

Main Methods:

• Retrospective observational study of 18 patients undergoing posterior interosseous artery flap surgery.
• Analysis of flap size, recipient area, grafting requirements, clinical outcomes, and complications.

Main Results:

• Achieved a 94.45% flap success rate with one total and one partial loss.
• Most patients experienced good healing with no major complications.
• Over half of cases (55.5%) required additional grafting; flap was insufficient in four cases.

Conclusions:

• The posterior interosseous artery flap is a safe and effective option for distal upper limb defects, especially on the hand and thumb.
• It offers low morbidity and good functional and esthetic outcomes.
• Beneficial for functional areas like the thumb and first commissure.