Biomechanics after spinal decompression and posterior instrumentation.
Marco D BurkhardAnna-Katharina CalekMarie-Rosa FasserFrédéric CornazJonas WidmerJosé Miguel SpirigFlorian WanivenhausMazda FarshadPublished in: European spine journal : official publication of the European Spine Society, the European Spinal Deformity Society, and the European Section of the Cervical Spine Research Society (2023)
The amount of posterior decompression significantly impacts ROM of the lumbar spine. The here performed biomechanical study allows creation of a simplified rule of thumb: Increases in segmental ROM of approximately 10%, 20%, and 50% can be expected after unilateral laminotomy, midline decompression, and nucleotomy, respectively. Instrumentation decreases ROM by approximately 80% in bending moments and accompanied decompression procedures only minorly destabilize the instrumentation construct.
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