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Metal allergy yielded unsatisfactory results after shoulder arthroplasty
Researchers recommend screening for metal allergy prior to shoulder arthroplasty, as patients with a metal allergy had superior results after primary shoulder arthroplasty compared with those who underwent revision shoulder arthroplasty, according to results.
Researchers collected patient risk factors, metal allergy factors and surgery factors among patients who underwent shoulder arthroplasty from January 2012 to January 2015. Researchers included American Shoulder and Elbow Surgeons score, Penn shoulder score and single assessment numeric evaluation score as outcome measures.
Results showed 11 patients had a metal allergy, with five patients diagnosed prior to the index arthroplasty and six patients diagnosed after shoulder replacement through skin patch testing, memory lymphocyte immunostimulation assay or clinical history. Researchers noted progressive pain and stiffness among patients identified with an allergy after implantation. However, no patients presented with cutaneous manifestations. Researchers found better results among patients with metal allergy who underwent primary shoulder arthroplasty vs. revision shoulder arthroplasty. – by Casey Tingle
Disclosures: Ko reports no relevant financial disclosures. Please see the full study for a list of all other authors relevant financial disclosures.