20.50 Patellofemoral Standard Jet Size:LG allows elbow flexion/extension

allows elbow flexion/extension

Adjustable-height posterior strut

Disc herniation & degeneration

midfoot and ankle

20.50 Patellofemoral Standard Jet Size:LG allows elbow flexion/extensionSizes: xs, s, m, l, xl, xxl 20. 50 Design Between 20 and 50 of flexion, the patella is at risk to abnormal tracking, subluxation, and dislocation. The 20. 50 Patellofemoral Brace dynamically supports the patella through this range of flexion by increasing pressure of the bladder and underlying buttress against the lateral border of the patella as the knee moves between 20 and 50. The buttress is dependent on position of the hinge and frame. When the