Multi–functional intramedullary self-locking ulna nailing system: Proximal oblique locking without the need of fluoroscopic guidance, and it’s effects on olecranon joint surface

Abstract

Aim: Due to the necessity of using the small diameter nails in the ulna, negative outcomes such as failure in the self-locking, longterm exposure to radiation, and increased operation time are expected. Several clinical trials propose that an ideal nail system forunlar fixation challenge has not been developed yet.Material and Methods: This study involved the use of a new multifunctional intramedullary self-locking ulna nailing system and 36intact dry cadaveric ulna bones. The relationship between the oblique self-locking screw, which has made a crucial contributionto the nailing system, and the joint surface of olecranon was investigated because this screw does not necessitate the use offluoroscopic guidance and is easy to apply.Results: In our study, during anterior or medial or posterior oblique locking, no olecranon joint surface damage occurred on any bonewith a locking rate of 100%.Conclusion: The clinical trials demonstrated that the proximal oblique locking was achieved easily in a short period of time, indicatingthe device’s immense value for the patient and the surgeon.