Abstract
Cement extrusion has been an uncommon complication after shoulder arthroplasty. Although extrusion of cement is well documented after hip arthroplasty, less is known about cement extrusion after shoulder arthroplasty. In a recent study, cement extrusion after total shoulder arthroplasty was noted to occur approximately 10 cm distal to the medial neck cut of the humeral head, with an incidence of 10%. Cement extrusion has been noted after use of pressurizing devices in hip arthroplasty. Cement usually extrudes through pre-existing anatomic channels or through an iatrogenic or unseen fracture near the implant. There is an inherent risk of peripheral nerve injury from cement as a result of direct pressure and/or thermal damage. We present a case of cement extrusion causing radial nerve palsy after humeral arthroplasty.
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