Hello, I am a 53 year old Disabled Veteran currently diagnosed with DDD; I was first diagnosed with this in 2000. I am seeking for medical evidence that may be used to as evidence that my DDD was related to my Knee condition. I received reconstructive surgery on my left knee in 1978. I have severe arthritis to this knee, and I need to prove a medical nexus between my Left Knee injury and my current DDD. My contention is that my DDD was aggravated or caused by my altered gate secondary to my knee injury 35 years ago and a history of falls related to my knee giving way. I met with a spine surgeon who stated no, DDD is not caused by trauma; it’s a disease process in the elderly. However, I have read articles that DDD may be caused by trauma or as a natural aging process. Are there any scholarly articles related to making this Nexus that you can recommend.