Table 2.

Localization of osteoarticular infections, sample types, and isolated pathogens. (*) MSSA 43.3%, MRSA 39%, and S. aureus with an unknown profile of resistance 17.7%; (**) CoNS oxacillin-resistant 14.2%, CoNS oxacillin-sensitive 7.1%, CoNS with unknown resistance profile 78.6%; (***) Vancomycin-Resistant Enterococcus (VRE) 0.4%. Acronym used—CoNS: Coagulase Negative Staphylococcus.

Type of osteoarticular infections
N. of patients included	388 (86.2%)
Osteomyelitis (n, %)	280 (72.2%)
Spondylodiscitis (n, %)	79 (20.4%)
Septic arthritis (n, %)	29 (7.5%)
Site of infection
N. of patients included	178 (39.6%)
Osteomyelitis (total)	148
Lower extremities (n, %)	123 (83.1%)
Upper extremities (n, %)	18 (12.1%)
Other (n, %)	7 (4.7%)
Spondylodiscitis	30
Lumbo-sacral (n, %)	21 (70%)
Cervical-thoracic (n, %)	8 (26.7%)
Both (n, %)	1 (3.3%)
Isolated pathogens
N. of isolated included	243
S. aureus * (n, %)	164 (67.5%)
Other Gram-positive (n, %)	24 (9.9%)
CoNS ** (n, %)	28 (11.5%)
Enterococcus spp. *** (n, %)	12 (4.9%)
Streptococcus spp. (n, %)	9 (3.7%)
Gram-negative and fungi (n, %)	6 (2.5%)
Sample type
N. of patients included	130 (28.9%)
Bone biopsy or deep tissues (n, %)	110 (84.6%)
Blood (n, %)	19 (14.6%)
Bone biopsy or deep tissues and blood (n, %)	1 (0.8%)