Free Pulp Transfer for Fingertip Reconstruction-The Algorithm for Complicated Allen Fingertip Defect

Area of Science:

• Reconstructive surgery
• Microsurgery
• Hand surgery

Background:

• Fingertip injuries present complex reconstructive challenges.
• Allen classification system categorizes fingertip defects.

Purpose of the Study:

• To review cases of free toe pulp transfer for fingertip reconstruction.
• To present an algorithm for applying free pulp transfer in complicated Allen fingertip defects.

Main Methods:

• Seventeen patients underwent free toe pulp transfer for fingertip reconstruction.
• The study applied a specific algorithm based on Allen classification (Types II, III, and IV).
• Free pulp transfer with nail bed grafting was used for Type III defects; combined toe flaps for Type IV.

Main Results:

• All free pulp flaps achieved complete survival.
• Excellent static 2-point discrimination (mean 10.5 mm) was achieved.
• No adverse sensory outcomes or pain reported; minimal donor site morbidity.

Conclusions:

• Free toe pulp transfer is a "like with like" reconstruction for fingertip trauma.
• It provides sensate, glabrous skin with good aesthetic match.
• Offers advantages over traditional toe-to-hand transfer with reduced donor site morbidity.