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Updated: Jul 19, 2025

Measurement of Dynamic Scapular Kinematics Using an Acromion Marker Cluster to Minimize Skin Movement Artifact
Published on: February 10, 2015
Dynamic Horizontal Instability of the Acromioclavicular Joint: A Case Report
Mohamad K Moussa1, Justine Fleurette, Jean-David Werthel
1Department of Orthopedic Surgery, Hôpital Ambroise Paré, Boulogne-Billancourt, France.
Case:
A 19-year-old female patient with a history of shoulder trauma 6 years ago presented with dynamic horizontal instability of the acromioclavicular joint (ACJ). She was treated with open ACJ reconstruction using gracilis allograft and showed a satisfactory clinical result at 1-year follow-up.
Conclusion:
Dynamic pure horizontal instability of the ACJ is a rare entity with only 6 cases reported in the literature. Till now, all reported patients who necessitated surgical treatment failed because of residual instability and/or pain. We present the seventh case of this type with a successful clinical outcome.
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