Establishing Normative Sonographic Muscle Ratios for the Rotator Cuff in a Military Beneficiary Population

This study established a robust reference for normative sonographic measurements and ratios for RTC muscles in an active, healthy, military population that accounts for sex-based differences in absolute muscle size. US offers a cost-effective, efficient, and validated alternative to magnetic resonance imaging for assessing RTC muscle size. The introduction of sonographic muscle ratios as a diagnostic tool has the potential to enhance personalized shoulder health assessment, enabling timely, accurate diagnoses and patient-centered treatment plans that can optimize warfighter readiness. Future research should determine if RTC muscle ratios are more predictive of shoulder pathology in symptomatic personnel than absolute measurements.