Conclusion:
Thumb replantation is a difficult surgical technique that necessitates
high precision and skills. Anastomosis of small diameter superficial
veins can be difficult, and vasodilation may be required to allow the
venous coupler to fit into it. The use of papaverine is safe and
efficient to achieve sufficient vasodilation and allow for successful
anastomosis. Nonetheless, as with any medication, the patient’s existing
co-morbidities should be carefully evaluated before using papaverine.
The effective application of papaverine in this example and the
significant increment in the vein diameter demonstrates its potential
value in microsurgery, particularly when vessels are small relative to
that of the coupler.