Intramedullary Venous Drainage System for Distal Fingertip Replantations.

Area of Science:

• Microsurgery
• Reconstructive Surgery
• Vascular Surgery

Background:

• Successful fingertip replantation relies heavily on venous anastomosis.
• Vein anastomoses are technically challenging in Zone 1 due to small vessel diameters, often precluding their use.
• Alternative venous drainage methods are essential for successful artery-only fingertip replantations.

Purpose of the Study:

• To introduce a novel intramedullary venous drainage system for fingertip replantation.
• To evaluate the efficacy of this system in facilitating venous return in artery-only replantations.
• To present clinical outcomes of fingertip replantations utilizing this innovative technique.

Main Methods:

• Development of an alternative intramedullary venous drainage system.
• Application of the system in 24 cases of fingertip replantation distal to the nail fold.
• Artery-only replantation technique focusing on venous drainage via the intramedullary space.
• Literature review of existing venous drainage methods for fingertip replantation.

Main Results:

• The developed intramedullary venous drainage system was successfully applied in 24 fingertip replantations.
• The technique facilitated adequate venous drainage in cases where direct venous anastomosis was not possible.
• Positive outcomes were observed in the replanted fingertips, suggesting the system's viability.

Conclusions:

• The intramedullary venous drainage system provides an effective alternative for venous return in artery-only fingertip replantations.
• This method addresses the technical challenges of microsurgical venous repair in Zone 1 injuries.
• The study supports the use of the medullary cavity as a conduit for venous drainage in distal fingertip replantations.