• The patient (male or female) must be 18 years or older

• The patient must be a candidate diagnosed with either degenerative disc disease including 1-2 level (L4-L5 and/or L5-S1) or dysplasic spondylolisthesis (degree 1 or 2) or lumbar stenosis

• If the patient is of child-bearing potential, the patient confirms not to be pregnant

• The patient is able to comply with the clinical investigation-related procedures such as attending all follow-up procedures

• The patient is able to fully understand the nature of the proposed surgery and is able to provide a signed informed consent including the use of the anonymized data for scientific publication

• The patient will not participate in another clinical investigation during this clinical investigation