| Summary: | Abstract Background Large, displaced anterior glenoid rim fractures after primary traumatic anterior shoulder dislocation are usually managed by surgical stabilization. Although there is little evidence supporting surgical management, it is often preferred over non-operative treatment. This case report describes non-operative management of such large, displaced anterior glenoid rim fracture with CT- and MRI-based documentation of anatomical healing of the fracture fragment, a finding that has not been described previously. Case presentation This case report describes a 49-year-old male, right-hand dominant, carpenter, who had a left-sided primary anterior shoulder dislocation after a fall while skiing. Initial plain radiographs showed a reduced glenohumeral joint with a large, displaced anterior glenoid rim fracture. CT-evaluation showed a centered humeral head, and as per our institutional protocol, non-operative management was initiated. Longitudinal radiographic assessment at 2 weeks, 4.5 months and 12 months showed reduction of the initially severely displaced fracture fragment. MRI- and CT-evaluation after 12 months confirmed anatomical healing of the fragment. At final follow-up, the patient was highly satisfied, although the healing process was complicated by posttraumatic frozen shoulder, which has had almost fully resolved after 12 months. Conclusions Given that the glenohumeral joint is concentrically reduced, large (displaced) anterior glenoid rim fractures after traumatic primary shoulder dislocation can be successfully treated non-operatively, with the potential of anatomical fracture fragment healing. Therefore, it remains subject to conservative treatment at our institution and surgical stabilization is reserved for patients with a decentered humeral head or persistent glenohumeral instability.
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