Table 3.

Clinical and laboratory parameters before revision surgery

	Patient 1	Patient 2	Patient 3	Patient 4	Patient 5	Patient 6	Patient 7
Duraftion of pain (weeks)	6	4	6	8	2	8	4
Local findings	Sinus drainage	Swelling	Swelling	Swelling	Swelling	Swelling	Sinus drainage
Time from index to revision surgery (months)	34	14	54	26	18	30	50
Loss of scoliosis correction	No	No	No	No	No	No	No
C-reactive protein (mg/l)	<5.0	14.1	31.7	143.7	212.0	<5.0	33
Leukocytes (G/l)	7.18	12.65	11.17	9.50	26.34	7.40	8.67
Erythrocyte sedimentation rate (mm/h)	17	Missing	34	92	60	8	54
Fever (>37.6°C)	No	No	No	No	No	No	No