Methods and devices for fixing a defect in the annulus fibrosis of a patient. The devices include first and second vertical components extending from the middle region of the horizontal component, each of the first and second vertical components having a width and an end. The middle region of the horizontal component of the device to block the defect in the annulus fibrosis. The first vertical component is attached to the upper vertebra and the second vertical component is attached to the lower vertebra. The horizontal component can be positioned beyond at least an outer layer of the annulus fibrosis, alternatively positioned beyond the innermost layer of annulus fibrosis, alternatively positioned between adjacent layers of annulus fibrosis, or alternatively positioned on the exterior of the annulus fibrosis.

 
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> Spinal fusion implant having deployable bone engaging projections

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