About 300,000 spinal fusions are performed in the United States every year.

在美国每年有30万例脊椎融合手术。

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At 2 years follow-up, patients who underwent a posterior instrumented spinal fusion that was not augmented with any bone graft appear to have successful spinal fusions.

一项随访2年的研究发现，单纯行后路器械固定而未用任何移植骨的患者术后脊柱融合良好。

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At 2 years follow-up, patients who underwent a posterior instrumented spinal fusion that was not augmented with any bone graft appear to have successful spinal fusions.

一项随访2年的研究发现，单纯行后路器械固定而未用任何移植骨的患者术后脊柱融合良好。

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