Life Spine, a medical device company that designs, develops, manufactures and markets products for the surgical treatment of spinal disorders, announced today that the Company has published a new retrospective study examining the effect of expandable versus static interbody implants via the Journal of Spine Surgery (JSS).
The paper assessed the results of 100 patients who underwent transforaminal lumbar spinal fusion via minimally invasive surgery at L4-L5 or L5-S1. The objective of the paper was to see how the ProLift® Expandable Spacer System affected patient reported outcomes, sagittal alignment, and restoration of disc height and foraminal height comparative to static interbody cages.
When compared to the static interbody, ProLift Expandable Spacer System saw significantly improved radiographic measures that were maintained over two years:
- 85% increase in anterior disc height over static interbody
- 190% increase in posterior disc height over static interbody
- 113% increase in average disc height over static interbody
- 45% increase in foraminal height over static interbody
In addition to the radiographic improvements, patient-reported outcomes (PRO) significantly improved in the expandable group for ODI and VAS back pain as early as 3 months postoperatively, which was sustained up to the two-year visits.
“ProLift and our full line of Micro Invasive expandable products have received excellent feedback from surgeons. This study validates that feedback and demonstrates significantly improved radiographic and PROs compared to the static cage. In addition to lower blood loss and shorter hospital stays compared to the static cage group, the patients in the expandable cage group reported significantly decreased disability and pain following the transforaminal lumbar interbody fusion,” said Mariusz Knap, Sr. VP of Marketing for Life Spine.