Table 1.

Analysis of reoperation rates due to aseptic loosening in patients with periprosthetic joint infection (n = 320) caused by Gram-positive versus Gram-negative bacteria.

Bacterial PJI	Reoperation Rate %	Reoperation Rate Due to Aseptic Loosening %
GP	25.1% (63/251)	6.3% (4/63)
GN	23.2% (16/69)	31.3% (5/16) *

Abbreviations: PJI, periprosthetic joint infection; GP, Gram-positive; GN, Gram-negative. * p = 0.03 (Fisher’s exact test), GN versus GP for PJI. Reoperation rate = reoperation number/total number of patients. Reoperation rate due to aseptic loosening = aseptic loosening number/total reoperation number of patients.