OCAD MSK

History

29 yr old male s/p shoulder dislocation 2 weeks ago

Figure 1 for case Perthes lesion — Figure 1

Figure 2 for case Perthes lesion — Figure 2

Figure 3 for case Perthes lesion — Figure 3

Discussion

There is a moderate sized subacute Hill Sachs deformity with only minimal marrow edema at the anteroinferior glenoid rim. The axial images suggest labral injury, but do not clearly define the lesion. Slide 2 shows images in the biceps labral oblique (BLO) plane, which clearly delineate the avulsion of the anterior labrum at 3:00-5:00, with an intact labroligamentous complex, constituting a Perthes lesion. There is fibrillation of the adjacent articular cartilage at the glenoid rim. Not the impaction and marrow edema at the coracoid undersurface related to recent anterior, subcoracoid dislocation. Reference article.

Diagnosis

Perthes lesion

Hilary Umans, MD

Courtesy

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