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Patient Outcomes After Single-level Coflex Interspinous Implants Versus Single-level Laminectomy
Jack Zhong1, Brooke O'Connell1, Eaman Balouch1
1NYU Langone Health, Department of Orthopedics, Division of Spine, New York, NY.
Spine
|January 4, 2021
Summary
Coflex interspinous devices showed higher 90-day complications, longer operative times, and increased blood loss compared to laminectomy alone. However, revision and neurologic complication rates were similar at final follow-up.
Area of Science:
- Neurosurgery
- Orthopedic Surgery
- Spinal Surgery
Background:
- The Coflex Interlaminar Stabilization device (CID) is an option for lumbar stenosis with grade 1 stable spondylolisthesis.
- It aims to provide stability while preserving motion and preventing disc collapse, serving as an alternative to laminectomy.
Purpose of the Study:
- To compare the postoperative outcomes of the Coflex Interlaminar Stabilization device (CID) versus traditional laminectomy for lumbar stenosis.
Main Methods:
- Retrospective cohort analysis of patients undergoing single-level CID implantation or laminectomy for lumbar stenosis.
- Inclusion criteria: adults (≥18 years) with lumbar stenosis and grade 1 stable spondylolisthesis.
- Minimum 90-day follow-up, with review of clinical characteristics, perioperative outcomes, and complications.
Main Results:
- The CID cohort was older and had higher ASA grades than the laminectomy group.
- CID implantation was associated with higher estimated blood loss (EBL), longer operative time, and longer length of stay.
- Higher rates of total perioperative complications and instrumentation-related complications were observed in the CID group within 90 days.
Conclusions:
- Single-level CID implantation resulted in higher 90-day perioperative complications, increased EBL, longer operative times, and extended hospital stays compared to laminectomy alone.
- Despite initial higher complication rates, similar overall revision and neurologic complication rates were observed between the two groups at the latest follow-up.
