The s hade of epidural fibrosis in the CT presented in 27.3%and that of root fibrosis in the myelography in 20.45%.

• 术后半年CT硬脊膜外纤维化密度阴影加重占腰腿痛组27.；3%25、脊髓造影，硬脊膜疤痕挛缩神经根袖充盈缺损加重20