CRP and cryopyrin-associated periodic syndrome: As for laboratory indicators, the mean preoperative CRP and ESR were 46.3 ± 9.1 mg/L and 57.3 ± 12.9 mm/h in M-OLIF group, without significant difference in CAPS group (44.1 ± 18.0 mg/L and 54.5 ± 17.0 mm/h) (P > 0.05).