The Aesthetics of Digit Amputation.

Background

The goal of surgery, when treating a patient with a traumatized hand, is to restore function. The importance of the aesthetics on a patient's psychological well-being should also be considered. The biomechanical ideals for creating a useful hand after digit amputation have been defined; however, ideal aesthetic levels for finger amputation have not been elucidated. The purpose of this study was to determine the general population's visual preferences for different levels of digit amputation in the hand.

Methods

In all, 310 participants were surveyed to identify preferences of different levels of single digit amputations in dorsal and volar views. A normal hand was digitally manipulated to simulate various levels of digit amputation. The aesthetics of amputation at the distal interphalangeal (DIP) joint, proximal interphalangeal (PIP) joint, metacarpophalangeal (MCP) joint, and ray amputation were compared to one another via rank order. Average rank for each level of amputation for a digit was determined.

Results

Amputation at the DIP was favored over all other levels; however, ray amputation was the second most aesthetic, particularly in the middle and ring fingers even when compared to amputation at the PIP level.

Conclusion

When presented a choice at which level to perform a completion amputation or a primary amputation of a digit, and functionality at multiple levels of amputation is equivocal, aesthetic outcomes should be considered. Amputation at the DIP joint is preferable, but ray amputation is aesthetically more pleasing than amputation at the PIP or MCP joints in the index, middle, ring, and small fingers.