Postoperative MR Imaging in Shoulder Instability and Intra-articular Damage.
Christoph Stern, Samy Bouaicha, Filippo Del Grande, Reto Sutter
Author Information
Christoph Stern: Radiology, Balgrist University Hospital, Forchstrasse 340, Zurich 8008, Switzerland; Faculty of Medicine, University of Zurich, Zurich, Switzerland.
Samy Bouaicha: Faculty of Medicine, University of Zurich, Zurich, Switzerland; Department of Orthopaedic Surgery, Balgrist University Hospital, Forchstrasse 340, Zurich 8008, Switzerland.
Filippo Del Grande: Department of Radiology, Ospedale Regionale di Lugano, Via Tesserete 46, Lugano 6900, Switzerland.
Reto Sutter: Radiology, Balgrist University Hospital, Forchstrasse 340, Zurich 8008, Switzerland; Faculty of Medicine, University of Zurich, Zurich, Switzerland. Electronic address: Reto.Sutter@balgrist.ch.
MR imaging of the postoperative shoulder after instability surgery is challenging. The radiologist must be familiar with surgical procedures, altered anatomy, and expected postoperative findings for correct interpretation of normal findings versus a true pathology. Artifacts from metallic hardware or abrasions further complicate MR image interpretation, but are reduced with metal artifact reduction techniques. This article focuses on capsulolabral surgery, bone block transfers, and humeral bone loss procedures in patients with shoulder instability and their postoperative imaging evaluation. Surgical procedures and common complications are explained, and normal and pathologic postoperative imaging findings are presented.
