Comparison of Coflex dynamic stabilization with bacfuse static stabilization for lumbar degenerative disease.

PURPOSE: To compare the clinical efficacy between BacFuse static interlaminar stabilization and Coflex dynamic interlaminar stabilization in patients with lumbar degenerative disease.

METHODS

Sixty-one patents with lumbar degenerative disease who underwent Coflex and BacFuse interlaminar stabilization were included. Patient follow-up was conducted 1, 6, and 24 months after surgery.

RESULTS

Visual analog scale scores, Oswestry Disability Index scores and Zurich Claudication Questionnaire scores were significantly improved after surgery in both groups. Anterior disc height, posterior disc height, and foramina height at the targeted segment increased after surgery in the BacFuse group by 11.69%, 22.88%, and 19.62%, respectively. Between the 1- and 24-month follow-ups, mean disc height of the segment superior to the target decreased from 18.92 ± 1.68 mm to 18.65 ± 1.94 mm in the Coflex group and from 19.52 ± 1.58 mm to 19.07 ± 1.40 mm in the BacFuse group (P < 0.05). No new symptoms developed during follow-up.

CONCLUSIONS

BacFuse is a safe and effective alternative to Coflex interlaminar stabilization in patients with lumbar degenerative disease.