When bones, discs or joints of the spine degenerate, bony spurs may form and push into the spinal canal or foramen space.

当脊柱的骨头、椎间盘和关节发生退变，会形成骨刺并挤入椎管或椎间孔，这被称为椎管狭窄，也会对神经根造成有害的压迫。

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There is mild bony expansion of the T5 vertebral body, causing moderate spinal canal stenosis. There is no internal matrix formation, nor is there evidence of periostitis.

T5椎体轻度膨胀，导致中度的椎管狭窄，病灶内部无骨基质形成，也没有骨膜炎的证据。

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