OBJECTIVE: Little information is available to guide treatment strategies regarding @entity1 with unexpected positive cultures (UPC), including @entity5478 (PA), without overt signs of @entity281 in revision shoulder arthroplasty (RSA). The purpose of our study was to analyze the prevalence, clinical meaning, treatment and prognosis of UPC in RSA. DATA SOURCES AND STUDY SELECTION: We performed a systematic review of the literature between 1950 and 2013 for all studies reporting on UPC for PA. Studies with the prevalence and prognosis of @entity1 with UPC in RSA were analyzed. RESULTS: Six studies meeting our inclusion criteria yielded data for 1 402 @entity1 who underwent a total of 1405 RSA. Based on the available data, following RSA 235 shoulders had UPCs with a pooled percentage of 16.7% (235/1405). The most commonly isolated bacteria from shoulders following RSA with UPCs was PA with pooled percentages of 63.4% (149/235). Occurrence of true @entity281 from UPCs after RSA was seen in 24 shoulders (24/235, 10.2%). Antibiotic use did not influence the rate of the occurrence of true @entity281 from UPCs (P = 0.498). CONCLUSIONS: Our study showed a low risk of having a true @entity281 from UPCs after RSA without clinical signs of @entity281 at the time of the surgery. Therefore, prolonged antibiotic therapy may not be necessary in these @entity1 .

Unexpected positive cultures including isolation of XXXX in revision shoulder arthroplasty.

@entity1 :: ('9606', 'Species') :: ['patients'] @entity281 :: ('MESH:D007239', 'Disease') :: ['preoperative infection', 'infection'] @entity5478 :: ('1747', 'Species') :: ['Propionibacterium acnes']
@entity5478 :: (1747,Species) :: ['Propionibacterium acnes']
