2025 ISAKOS Biennial Congress ePoster
Investigation of a Self-Tension Screw for Meniscal Root Repair: Assessing the Biomechanical Properties and Design Considerations for Optimal Outcomes
Arash Sharafatvaziri, MD, Offenbach am Main, Hessen GERMANY
Ramin Shayan-Moghadam, M.D., Tehran, None Selected IRAN, ISLAMIC REPUBLIC OF
Morad Karimpour, Phd, Tehran, Tehran IRAN, ISLAMIC REPUBLIC OF
Tehran University of Medical Science, Tehran, Tehran, IRAN, ISLAMIC REPUBLIC OF
FDA Status Not Applicable
Summary
The study introduces a novel self-tensile screw for meniscal root repair, showcasing promising aspects in generating tension and maintaining stability under load. While the washer screw demonstrated superior load tolerance, the self-tensile screw exhibited advantages in terms of displacement at maximum load. These findings contribute to the ongoing discourse on innovative solutions for meniscal ro
ePosters will be available shortly before Congress
Abstract
Meniscal root tears pose a significant challenge in orthopedics, disrupting the delicate mechanics of the knee. This study introduces a pioneering self-tensile screw designed for meniscal root repair, addressing limitations associated with traditional screws. Bovine cadaveric specimens were employed to conduct biomechanical evaluations comparing the self-tensile screw with a conventional washer screw system. Results from cyclic loading tests revealed comparable displacement trends, while load-to-failure assessments demonstrated superior tolerance in the washer screw. Stiffness analyses indicated greater structural stability in the washer screw, yet the self-tensile screw exhibited advantages in displacement at maximum load. The innovative self-tensioning mechanism of the screw, generating tension during bone channel engagement, signifies a potential breakthrough in addressing manual tensioning challenges.