The InSpan interspinous fixation device was found to be a stronger and more reliable alternative to traditional interspinous designs for spinal fixation, according to a study.
Kingsley Chin, MD, led the study published in the Journal of Spine Surgery, according to a June 16 news release. The study examined fixation performance of InSpan’s dual-locking symmetrical design against the single-locking asymmetrical Aspen IFD from Highridge Medical.
Researchers found InSpan has a 94.8% greater resistance to pullout forces compared to Aspen and gross failure happened at the interface with testing material rather than at the implant itself.
“This is the first comparative study to scientifically validate the biomechanical advantages of modern interspinous fixation plate designs,” Dr. Chin said in the release. “Our findings show that the InSpan design delivers significantly greater fixation strength, which translates to better outcomes in the operating room and longer-term stability.”
