DDD coincides with shortened disc height, and therefore stenosis? People with stenosis often compensate to some flexion or kyphosis of the lumar spine? Sustained extension is not recommended minus for essential ADL's (in this case relatively speaking it would be standing)? I don't know why you would simultaneosly want to traction and increase lordosis in this case. Is there another way to traction plus lordosis besides in the prone position? Also, traction is only indicated for radiculopathy that does't centralize with directional preference exercise, it's not indicated for DDD or axial back pain or hydration or lumbar radic that centralizes with directional preference exercise. IMO.