Please assess the completion status of the following clinical trial:

Trial Title: Multicenter Study of the Avenue L Interbody Spinal Fusion System Using VerteBRIDGE Plating and Posterior Fixation

Study Design Characteristics:
- Allocation: None
- Intervention Model: None
- Observational Model: COHORT
- Primary Purpose: None
- Time Perspective: PROSPECTIVE
- Masking: None
- Phase: None
- Number of Arms: None

Eligibility Criteria:
Inclusion Criteria:~* Subjects must be candidates for on-label use of the Avenue L device (have degenerative disc disease, use only at one or two contiguous levels, posterior fixation must be used, autograft must be used in the interbody cage)~* Subject must be skeletally mature at the time of surgery, i.e. the subject must be at least 21 years of age at the time of surgery~* Subject should have had a minimum of 6 months of non-operative treatment prior to surgery~* The placement of the Avenue L device must be a primary surgery~* Subject must be willing to sign the consent form and be able to return for all follow up visits.~Exclusion Criteria:~* Subject must not have had prior surgery at the operative level(s)~* Subject is known to have substance or alcohol addictions~* Subject has lateral curvature of the spine (scoliosis, all types)~* Subject is a prisoner~* Subject is pregnant~* Subject has an active infection or sepsis at the time of surgery~* Subject has any neuromuscular disorder that would preclude accurate neurologic evaluations

- Gender: ALL
- Minimum Age: 21 Years
- Maximum Age: None
- Healthy Volunteers: f

Study Arms:
- Operated Subjects (Type: None): Subjects scheduled to receive an Avenue® L Interbody Fusion System (LDR Spine) for fusion of the lumbar spine from L2-S1

Based on this trial design, predict the completion outcome and termination type (if applicable).