|摘要||目的 探讨对于轻度神经损伤的不稳定AO A型胸腰段骨折,不进行减压及融合,单纯行短节段椎弓根螺钉固定手术的疗效. 方法对比分析我院2004年2月-2008年2月手术治疗的AO A型胸腰段骨折(T11～L2)患者42例,分为A组(未植骨组,21例),予单纯短节段椎弓根螺钉固定,而未行椎板切除减压及植骨;B组(植骨组,15例),予椎弓根螺钉固定,不进行椎板切除减压但植骨.对两组术前及术后后凸角、椎体压缩高度进行比较分析. 结果 A组术前局部后凸角平均19.1°(15.4°～29.8°),椎体压缩高度平均46%(30%～63%);术后局部后凸角5.00(0.3°～10.3°),椎体压缩高度10%(0～28%),后凸矫正率79%.平均随访21.2(12～46)个月,随访超过12个月患者21例,末次随访后凸角平均7.0°(1.8°～10.7°),椎体压缩高度10%(2%～22%).B组术前局部后凸角平均25.8°(15.9°～34.5°),椎体压缩高度平均55%(30%～76%);术后局部后凸角7.1°(1.5°～19.1°),椎体压缩高度15%(0～28%),后凸矫正率74%.平均随访17.9(12～31)个月,随访超过12个月患者15例,末次随访后凸角平均8.3°(0.7°～19.2°),椎体压缩高度15%(1%～26%),植骨全部愈合,所有患者末次随访时均无明显腰痛症状,无内固定断裂或椎弓根螺钉拔出.后凸角和椎体压缩高度两组间差异无统计学意义.结论 对于一些神经损伤较轻的AO A型胸腰段骨折,在选择椎弓根螺钉固定时,可考虑不进行椎板切除减压,也不行后外侧植骨融合.
Objective To discuss the role of non-fusion without decompression in surgical treatment of unstable AO type A thoracolumbar fractures. Methods A retrospective study was performed on 42 patients with AO type A thoracolumbar fractures (T11-L2) treated with short segment pedicle screw fixation from February 2004 to February 2008. Patients were divided into two groups, ie, Croup A (treated with short segmental pedicle screw fixation without decompression or fusion) and Group B (treated with short segmental pedicle screw fixation without decompression but with fusion). The pre-operative, postoperative and follow-up local kyphotic angle, vertebrae compression rate were compared between two groups. Results In Croup A, average local kyphotic angle and average vertebrae compression rate were 19.1° (15. 4°-29. 8°) and 46% (30%-63%) respectively before operation, but 5. 0° (0. 3°-10.3°) and 10% (0-28%) respectively after operation. Twenty-one patients were followed up for average 21.2 months (12-46 months), which showed average local kyphotic angle of 7° (1.8°-10.7°) and average vertebrae compression rate of 10% (2% -22%) at final follow-up. In Croup B, average local kyphotic angle and average vertebrae compression rate were 25.8° (15.9°-34.5°) and 55% (30%-76%) respectively before operation, but 7.1° (1.5°-19. 1°) and 15% (0-28%) respectively after operation. Fifteen patients were followed up for mean 17.9 months (12-31 months) , which showed mean local kyphotic angle of 8.3° (0.7°-19.2°) and average vertebrae compression rate of 15% (l%-26%) at final follow-up. There was no pseudarthrosis, implant breakage, pedicle screw pull-out or severe back pain. There was statistical difference in local kyphotic angle and vertebrae compression rate between two groups.Conclusion Unstable AO type A thoracolumbar fractures with minor neurological deficit can be treated with pedicle screw fixation only without decompression or fusion.|