Abstract Background: Proximal humerus fractures represent a significant orthopedic challenge, accounting for approximately 5-6% of all fractures. The Proximal Humerus Internal Locking System (PHILOS) plate has emerged as a preferred treatment modality for complex fractures. This study evaluated the clinical and radiological outcomes of proximal humerus fractures treated with PHILOS plating. Methods: This prospective observational study included 78 patients with displaced proximal humerus fractures treated with PHILOS plating between June 2022 and May 2024. Patients were evaluated for functional outcomes using the Constant-Murley score and Disabilities of the Arm, Shoulder and Hand (DASH) score at 3, 6, and 12 months postoperatively. Radiological assessment included fracture union, neck-shaft angle, and complications. Statistical analysis was performed using appropriate tests with significance set at p<0.05. Results: The mean age was 52.4±12.6 years with male preponderance (60.3%). According to Neer classification, two-part fractures were most common (42.3%). The mean Constant-Murley score at 12 months was 78.6±10.4, and mean DASH score was 22.4±8.6. Radiological union was achieved in 94.9% of patients at a mean of 14.2±2.8 weeks. Complications occurred in 12.8% of patients, including screw perforation (5.1%), varus malunion (3.8%), and infection (3.9%). Functional outcomes showed significant correlation with fracture complexity (p=0.002) and age (p=0.018). Conclusion: PHILOS plating provides excellent clinical and radiological outcomes for proximal humerus fractures with acceptable complication rates. Fracture complexity and patient age significantly influence functional recovery.
International Journal of Medical Science and Advanced Clinical Research (IJMACR) (Tue,) studied this question.