Articles | Volume 3, issue 5
https://doi.org/10.7150/jbji.29289
https://doi.org/10.7150/jbji.29289
Brief report
 | 
11 Nov 2018
Brief report |  | 11 Nov 2018

Accuracy of Synovial Leukocyte and Polymorphonuclear Cell Count in Patients with Shoulder Prosthetic Joint Infection

Carol Strahm, Vilijam Zdravkovic, Claus Egidy, and Bernhard Jost

Keywords: prosthetic joint infection, shoulder arthroplasty, synovial fluid, cell count

Abstract. Joint aspiration in suspected infected implants is a validated diagnostic method in establishing the diagnosis of prosthetic joint infection (PJI). Cut-off values for synovial leukocyte counts and differentials are well described for patients with hip and knee PJI. In 19 failed shoulder implants, a leucocyte count of >12.2 G/L had a sensitivity and specificity of 92% and 100% respectively; A differential of >54% neutrophils had a sensitivity of 100 % and a specificity of 75%.