Radiological Union and Functional Recovery Following JUST UNIC™ Fixation for Comminuted Anatomical Neck Proximal...

Area of Science:

• Orthopedic Surgery
• Traumatology
• Biomaterials Engineering

Background:

• Comminuted proximal humerus fractures, especially those involving the anatomical neck, present significant fixation challenges.
• Maintaining stability while preserving vascularity is crucial for optimal outcomes.
• The JUST UNIC™ system, inspired by bilboquet design, aims to enhance metaphyseal stability with minimal periosteal disruption.

Purpose of the Study:

• To evaluate the clinical, functional, and radiological results of the JUST UNIC™ fixation system.
• To assess the system's efficacy in treating comminuted proximal humerus fractures involving the anatomical neck.

Main Methods:

• A retrospective single-center case series of 25 patients.
• Patients underwent fixation with the JUST UNIC™ system for comminuted proximal humerus fractures (Jan 2020-Dec 2023).
• Outcomes assessed via Visual Analogue Scale (VAS), Oxford Shoulder Score (OSS), range of motion (ROM), and radiological evaluation.

Main Results:

• All fractures achieved radiological union by six months.
• Significant improvements observed in VAS scores (reduced pain) and OSS (improved function).
• Marked improvements in forward flexion, abduction, and rotation; 60% experienced greater tuberosity resorption without impacting final outcomes.

Conclusions:

• JUST UNIC™ fixation provides reliable union and functional recovery for comminuted anatomical-neck proximal humerus fractures.
• The system demonstrates effectiveness in maintaining alignment and facilitating early rehabilitation.
• Further controlled studies are recommended for long-term validation.