Retropsoas Technologies, LLC

Retropsoas Technologies, LLC is a medical device company based in Frontenac, Missouri, specializing in minimally invasive spinal fusion solutions. The company has developed the EARP™ (Endoscopic Assisted Retro Psoas) Approach, a proprietary technique for lumbar interbody fusion that combines endoscopic visualization with a posterior mini-open approach. The EARP™ system is FDA 510(k) cleared and addresses limitations of traditional interbody fusion methods by enabling decompression, fusion, and instrumentation at all lumbar levels through a single mini-open incision. Key technical features include a large implant footprint designed to maximize endplate coverage, disc height restoration, and lordosis correction. The system incorporates proprietary intraoperative neuromonitoring (IONM) technology to reduce nerve injury risk to the lumbar plexus during posterior approach procedures. The EARP™ Approach combines strengths of multiple fusion techniques—anterior, lateral, and posterior approaches—into a single minimally invasive solution while reducing complication risks and optimizing fusion potential through direct visualization of the fusion bed. The company targets spine surgeons and surgical centers performing lumbar fusion procedures. Manufacturing and regulatory capabilities include FDA 510(k) clearance, indicating the device meets substantial equivalence standards for market distribution in the United States.