OCAD MSK

History

16 yo car vs pedestrian. Armpit pain. Father insisted on doing shoulder. Ordering Doc wanted brain and brachial plexus.

Figure 1 for case axillary neuropraxia secondary to shoulder dislocation ( RID7240 ) — Figure 1

Figure 2 for case axillary neuropraxia secondary to shoulder dislocation ( RID7240 ) — Figure 2

Figure 3 for case axillary neuropraxia secondary to shoulder dislocation ( RID7240 ) — Figure 3

Figure 4 for case axillary neuropraxia secondary to shoulder dislocation ( RID7240 ) — Figure 4

Figure 5 for case axillary neuropraxia secondary to shoulder dislocation ( RID7240 ) — Figure 5

Figure 6 for case axillary neuropraxia secondary to shoulder dislocation ( RID7240 ) — Figure 6

Discussion

Acute denervation change (possibly early subacute) of the axillary nerve. There is a GAGL lesion present and the humeral head probably went straight into the quadrilateral space causing a stretch neuropraxia of the axillary nerve. Changes are in the deltoid and teres minor but spared the supraspinatus and infraspinatus. Non contiguous muscle changes should make one think of a nerve issue! Anterior inferior labrum was intact, with an avulsion of the axillary pouch inferior glenohumeral ligament.

Diagnosis

axillary neuropraxia secondary to shoulder dislocation ( RID7240 )

Phillip Tirman MD

Courtesy

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