FDA Panel Rejects Medtronic PMA for Spinal System
FDA’s Orthopedic and Rehabilitation Devices Panel has voted 7 to 4 not to recommend approval of a Medtronic PMA for the DIAM Spinal Stabilization System for use in skeletally mature patients that have moderate low back pain (with or without radicular pain) with current episode lasting less than one year in duration secondary to lumbar degenerative disc disease at a single symptomatic level from L2‐L5. Panel members said the heterogeneity of the study population impacted the ability of the study data to support the proposed indications for use. It also said that the study observations impacted the ability to interpret the clinical trial results. To address this concern, they recommended that a new clinical study be performed.
The “H”‐shaped polymeric implant, which is implanted through an incision in the posterior lumbar region, is designed to sit between two adjacent spinous processes (L2‐L5) in the lumbar spinal region. It includes polymeric cables that wrap around adjacent spinous processes, and are secured by a titanium crimp. The device’s spacer and cables are designed to stabilize, yet preserve, flexion and extension motion at the treated level, FDA says.