Product Overview
Model 1013 is a posterior offset adjustable knee joint that allows the orthotist to fine tune the A-P alignment of the knee. The A-P alignment and the extension/flexion angle can be changed by simply removing two screws; this allows easy adjustability in 6° increments without the need to physically alter the angle of the uprights. The 1013 comes equipped with optional bail locks and urethane straps, which can be used to provide automatic locking when the knee joints reach full extension.
(https://www.beckerorthopedic.com/Product/KneeJoints/1000KneeSeries/1013)