Objective To compare the efficacy of long-segment and short-segment fixations via the posterior approach for mid-thoracic spinal tuberculosis in adults.Methods A retrospective study was con-ducted on 51 patients with mid-thoracic spinal tuberculosis who met the inclusion criteria from January 2010 to October 2018.The patients underwent one-stage posterior debridement,interbody fusion,and instrumentation.Among them,26 patients(group A)performed long-segment fixations,while short-segment fixations were performed for the other 25 patients(group B).Clinical efficacy of the two groups was compared.Results The follow-up time for group A and B was 60～102(75.5±11.8)months and 60～108(76.8±11.6)months respectively.The operative time was significantly shorter and the intraoperative blood loss was significantly less in group B(P＜0.05).The visual analogue scale(VAS)and neurological function of group A and B were signifi-cantly improved compared with preoperative ones(P＜0.05).According to Kirkaldy-Willis criteria,the excellent and good rate of group A and B was 92.3％and 92％respectively without statistically significant difference.In group A,the kyphosis Cobb angle decreased from 33.6°±4.3° preopeartively to 22.1°±2.9° post opeartively(P＜0.05)with the correction rate of 44.2％±4.9％and the correction loss of 1.1°±0.8°.The kyphosis Cobb angle in group B significantly decreased from 32.8°±5.1° preopeartively to 21.6°±3.2° postopeartively(P＜0.05)with the correction rate of 44.5％±4.5％and the correction loss of 1.1 °±0.7°.There was no difference bewteen two groups(P＞0.05).Conclusion Both long-segment and short-segment fixation can significantly relieve kyphotic deformity and neurological impairment,and improve patients'quality of life.Moreover,short-segment fixation led to less blood loss and shorter operative time in patients with suitable indications.
long-segment fixationshort-segment fixationtuberculosis,spinalmiddle section of the thoracic vertebra
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