[Effect of discectomy on the stress distribution in lumbar spine].
The change of stress distribution of lumbar spine after discectomy was analysed with three-dimensional finite element method. It was showed that the stress level in posterior element was elevated, but the stress level in anterior element was lower than before. The most significant change of stress distribution was found in trabecular bone of vertebral bodies. The clinical relevance was discussed.
Dai
L Y
LY
Changzheng Hospital, Second Military Medical University, Shanghai.
D001696:Biomechanical Phenomena; D006801:Humans; D007403:Intervertebral Disc / Q000503:physiopathology* / Q000601:surgery; D008159:Lumbar Vertebrae / Q000503:physiopathology* / Q000601:surgery; D008961:Models, Structural; D013314:Stress, Mechanical