The Membrane-Like Structure From Extensor Tendon to the Nail in the Distal End of Digits: An Anatomical Study of Structure, Function, and Utility

Conclusions

The SEP has been shown to play an essential role in fingertip stabilization in pinches. It can serve as an anatomical marker to avoid iatrogenic damage to the nail matrix in surgical approaches.

In distal dorsal finger injuries, the delicate structures of the nail matrix or insertion of the extensor tendon to the distal phalangeal bone should be preserved or repaired for esthetic and functional results. To explore these structures for a safer surgical approach, we focused on a membrane-like structure (the superficial extended portion of the extensor tendon [SEP]), poorly described previously, that attaches between the nail halter and the extensor tendon.

Source: Annals of Plastic Surgery - April 23, 2022 Category: Cosmetic Surgery Tags: Research Source Type: research