Early surgery with antibiotics treatment had better clinical outcomes than antibiotics treatment alone in patients with pyogenic spondylodiscitis: a retrospective cohort study

Table 2 Outcome measures for patients in the Group 1 and Group 2 treatment groups

	Group 1: Antibiotics only (n = 47)	Group 2: Early surgery with antibiotics (n = 43)	P value
Kyphosis correction angle^a
Mean (SD)	+1.2 (5.0)	−2.1 (6.3)	0.024
Length of hospital stay (days)
Mean (SD)	51.2 (23.2)	33.4 (17.5)	0.0001
Length of antibiotics Tx (days)
Mean (SD)	46.0 (21.7)	31.0 (16.9)	0.0001
Tissue culture rate, n (%)
Growth	23 (48.9%)	36 (83.7%)	0.001
No growth	24 (51.1%)	7 (16.3%)

SD standard deviation, Tx treatment
^aKyphosis correction angle = post-treatment kyphosis angle - pre-treatment kyphosis angle