Results Under optical microscope, the bone lacunae were in circular permutation around the Haversian canal, and the canaliculi communicated the lacunae and Haversian canal or between the lacunae.
结果在光学显微镜下，骨陷窝呈环状排列在哈佛管周围，骨小管沟通骨陷窝与哈佛管和骨陷窝之间的联系。
Conclusion: lumbar vertebral canal circular decompression has the advantages of having definite objective, more thorough decompression and less influence upon the stability of lumbar vertebrae.
结论：腰椎管环形减压术治疗老年性腰椎管狭窄，目的性强，减压较彻底，对腰椎稳定性影响小。
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