Study of the Long-Term Outcomes of Posterior Spinal Fixation With the Karma Device

NCT04984213 | Completed

• 1 other identifier: SEI-004
• Study Type: observational
• Target: 20
• Locations: 1 country
• Sites: 1

Brief Summary

The primary objective of this clinical study is to measure fusion rate in patients at 12 months following lumbar fusion in combination with posterior fixation using the Karma® device.

Conditions

Lumbar Disc Disease

Outcome Measures

Primary Outcomes (1)

• Fusion Rate

  Interbody Fusion Rate

  12 months

Interventions

Karma Posterior Fixation Device DEVICE

Posterior Fixation

Eligibility Criteria

• Age: 18 Years+
• Sex: all
• Healthy Volunteers: No
• Age Groups: Adult (18-64), Older Adult (65+)
• Sampling Method: Non-Probability Sample

Study Population

Subjects needing a lumbar fusion surgery

You may qualify if:

• Skeletally mature and age ≥ 18 years of age
• Appropriate patient as determined by the Investigator for anterior or lateral approach to lumbar interbody fusion surgery with planned posterior fixation to treat degenerative disc disease in one or two adjacent vertebral levels between L2 and S1.
• Failed at least six months of conservative treatment. This may or may not include any of the following,
• Spinal injections
• Chiropractic care
• Physical therapy
• Activity modification and/or with anti-inflammatory medications
• Oswestry Low Back Pain Disability Questionnaire score of at least 30%
• Visual Analog Scale (VAS) for back/hip/lower extremity pain ranking at a minimum at least 3/10 (30%)
• Psychosocially, mentally and physically able to fully comply with this protocol including adhering to follow-up schedule, study requirements with a signed informed consent with a study collaborator present at the time of signing to ensure compliance.

You may not qualify if:

• Patients with greater than two levels of degenerative disease or deformity for INTENDED operative levels.
• Previous fusion or total disc replacement at the intended level/s
• Known allergy to implant and instrument materials
• Clinically compromised vertebral bodies at the affected level(s) due to current or past trauma
• Degenerative spondylolisthesis of grade \>2
• Isthmic spondylolisthesis
• Back or leg pain of unknown etiology
• Active systemic infection or infection at the location planned surgery
• Active or suspected malignancy. If symptom free for 2 years, patients with prior malignancy may be included.
• Morbid obesity defined as a body mass index \> 40
• Patient being treated for other specific medical conditions that may affect bone density or the ability to obtain fusion (ie: steroids, etc)
• Pregnant or have plans to become pregnant in the next year.
• Currently a prisoner
• Patient has any condition, that in the opinion of the Investigator, would prohibit the patient from complying with the protocol
• Participation in a concurrent clinical study.

Sponsors & Collaborators

• Spinal Elements: lead

Study Sites (1)

Spine Institute of Louisiana

Shreveport, Louisiana, 71101, United States

Location

MeSH Terms

Conditions

Intervertebral disc disease

Study Design

• Study Type: observational
• Observational Model: COHORT
• Time Perspective: PROSPECTIVE
• Sponsor Type: INDUSTRY
• Responsible Party: SPONSOR

Study Record Dates

• First Submitted: July 20, 2021
• First Posted: July 30, 2021
• Study Start: August 15, 2021
• Primary Completion: June 16, 2025
• Study Completion: June 16, 2025
• Last Updated: June 29, 2025

Record last verified: 2025-06

Data Sharing

• IPD Sharing: Will not share

Locations

US (1)