The purpose of this investigation is to evaluate the safety and effectiveness of the TRIUMPH® Lumbar Artificial Disc for the treatment of patients who are suffering from Degenerative Disc Disease (DDD) at one level from L1 to S1.
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Number of Participants With a Change of at Least 15 Points in Pain/Disability Using the Oswestry Disability Index (ODI) Score at 24 Months Compared With the Score at Baseline
Timeframe: 24 months
Number of Participants With No Device Failures
Timeframe: 24 months
Number of Participants With Major Complications Defined as Major Vessel Injury or Neurological Damage
Timeframe: 24 months
Number of Participants Determined to Have a Normal Neurological Status
Timeframe: 24 months