[Kinematic effects of discectomy on the lumbar spine: an experimental study].
By way of 3-dimensional measurement, the kinematics of the lumbar spine after discectomy were studied on 8 specimens of functional spinal units from cadavers. Each specimen was subjected to discectomy performed as on living body, the specimen was then, with proper load, fixed on a frame specially made for passive motion, imitating that of a person. Records of the 3-dimensional motions, before and after discectomy, were compared carefully. The data demonstrated that discectomy of lumbar spine did bring about definite ill-effect on kinematics of the spine, initiating immobility.
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D000328:Adult; D001696:Biomechanical Phenomena; D006801:Humans; D066298:In Vitro Techniques; D007403:Intervertebral Disc / Q000502:physiology* / Q000601:surgery; D008159:Lumbar Vertebrae / Q000502:physiology* / Q000601:surgery; D008297:Male; D009068:Movement