Fig. 2From: Modified score based on revised Tokuhashi score is needed for the determination of surgical intervention in patients with lung cancer metastases to the spineKaplan–Meier curves of the overall survival of the patients in the two groups based on the modified score of patients with lung cancer metastases to the spine. a Retrospective study (p < 0.0001, logrank test). Group A: n = 58, group B: n = 62. b Prospective study (p = 0.0007, logrank test). Group A: n = 19, group B: n = 22Back to article page