Ko, H Y Facet tropism in lumbar motion segments and its significance in disc herniation. [electronic resource] - Archives of physical medicine and rehabilitation Nov 1997 - 1211-4 p. digital Publication Type: Clinical Trial; Controlled Clinical Trial; Journal Article ISSN: 0003-9993 Standard No.: 10.1016/s0003-9993(97)90334-8 doi Subjects--Topical Terms: AdultBiomechanical PhenomenaFemaleHumansIntervertebral Disc Displacement--physiopathologyLumbar Vertebrae--diagnostic imagingMaleMiddle AgedMovementTomography, X-Ray ComputedTropism