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Background <p>Anterior glenohumeral instability is a multifactorial condition heavily influenced by the baseline bony architecture of the shoulder joint. Historically, surgical stratification has relied on defect-based models, prioritizing the measurement of acquired volumetric bone loss. However, recent literature underscores the critical role of inborn congenital morphology.</p> Aim/Objectives <p>This commentary contextualizes the recent study by Sundar et al., which introduces the Coronal Glenoid Tilt Angle (GTA) as a novel, independent risk factor for instability measured via 3D-CT.</p> Discussion <p>We highlight the clinical bottleneck that exists between advanced 3D spatial profiling and our current surgical algorithms.</p> Conclusion <p>Ultimately, we advocate for the development of a comprehensive, multidomain instability score that synthesizes a patient's clinical profile, acquired volumetric defects, and intrinsic congenital restraints to better guide personalized interventions, ranging from isolated arthroscopic soft-tissue repairs to robust bone-block stabilizations.</p>

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Shifting Perspectives in Shoulder Instability: The Emerging Role of the Coronal Glenoid Tilt Angle and 3D Assessment

  • 期刊论文

  • 发表日期：

    2026年7月10日

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  • Abdul-ilah Hachem,
  • Hady Ezzeddine

摘要

Background

Anterior glenohumeral instability is a multifactorial condition heavily influenced by the baseline bony architecture of the shoulder joint. Historically, surgical stratification has relied on defect-based models, prioritizing the measurement of acquired volumetric bone loss. However, recent literature underscores the critical role of inborn congenital morphology.

Aim/Objectives

This commentary contextualizes the recent study by Sundar et al., which introduces the Coronal Glenoid Tilt Angle (GTA) as a novel, independent risk factor for instability measured via 3D-CT.

Discussion

We highlight the clinical bottleneck that exists between advanced 3D spatial profiling and our current surgical algorithms.

Conclusion

Ultimately, we advocate for the development of a comprehensive, multidomain instability score that synthesizes a patient's clinical profile, acquired volumetric defects, and intrinsic congenital restraints to better guide personalized interventions, ranging from isolated arthroscopic soft-tissue repairs to robust bone-block stabilizations.