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Medial coronoid prominence and lateral elbow pain: the medial hinge
Paolo Arrigoni1, Vishal Venkateshmurty Navale2, Mikko Raisanen3
1Clinica Ortopedica, Azienda Socio Sanitaria Territoriale Centro Specialistico Ortopedico Traumatologico Gaetano Pini-CTO, Milan, Italy.
Background:
Recalcitrant lateral elbow pain is often associated with minor lateral elbow instability, involving laxity of the radial band of the lateral collateral ligament and the annular ligament. To date, the role of coronoid morphology in this pathology has never been studied. This study aims to investigate the potential relationship between lateral elbow pain and specific morphometric measurements of the coronoid process using flexion computed tomography arthrography.
Methods:
All elbow flexion computed tomography arthrography from the hospital server was retrospectively analyzed. A total of 133 patients were enrolled and divided into 2 groups: 108 with lateral elbow pain and 25 controls. Coronoid flange and width were measured and compared to the radioulnar articular width in both groups.
Results:
No significant morphometric differences in the coronoid process were found between patients with chronic lateral elbow pain and controls.
Conclusion:
Other factors, such as capsuloligamentous structures, may have a greater impact on recalcitrant lateral elbow pain compared to the bony morphology of the medial structure of the elbow.
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