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Published on: June 6, 2025
Proximal humeral internal locking system (PHILOS) for the treatment of proximal humeral fractures
C P Charalambous1, I Siddique, K Valluripalli
1Department of Trauma and Orthopaedics, Burnley General Hospital, Burnley, UK. bcharalambos@hotmail.com
Introduction:
The aim of this study was to describe early results of a new internal locking system, PHILOS, used for the treatment of proximal humeral fractures.
Materials And Methods:
A chart and radiographic review of 25 cases that had proximal humeral internal locking system (PHILOS) plate for the treatment of proximal humeral fractures was performed.
Results:
Of the 25 cases, 20 went to union with a mean neck/shaft angle of 127.2 degrees . Five cases required or were considered for revision surgery for non-union or implant failure. Of the 25 implants, 4 had screw protrusion into the gleno-humeral joint, 4 had screw loosening and backing out, and 1 plate broke without further trauma.
Conclusions:
Our results suggest that PHILOS is an effective system for providing fracture stabilisation to bony union but awareness of potential hardware complications is essential.
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