Product Overview
The Modular Ratchet Lock, Model 1018, is designed to promote full knee extension by providing knee stability to the patient through an incremental range of knee flexion. The joint features a long, angled locking lever that is easily operated by the patient. The lever may also be shortened or configured into a standard bail.
(https://www.beckerorthopedic.com/Product/KneeJoints/1000KneeSeries/1018)