对于未发生转移的脊柱原发恶性肿瘤及原发病灶控制良好的孤立性椎体转移瘤行肿瘤椎体切除可降低肿瘤局部复发率、延长生存期[1、2]。但椎体切除后需重建脊柱稳定性。L5椎体前方毗邻大血管等重要结构,从活动度大、前凸的腰段过渡到固定、后凸的骶椎,生物力学上存在明 For non-metastatic spine primary malignancies and primary lesions well controlled solitary vertebral metastases tumor resection of the tumor can reduce the local tumor recurrence rate and prolong survival [1,2]. However, vertebral resection needs to be reconstructed spinal stability. L5 vertebral anterior adjacent to the great vessels and other important structures, from the activity, the anterior lumbar transition to the fixed, kyphotic kyphosis, there are biomechanical