I injured my lower back pushing a car out of snow. i had a back x-ray, is showed mild osteophytosis in the thoracolumbar spine, what does that mean?

Osteophytosis?: The term means you have multiple bone spurs along the spine segment you had xrayed. Alone, osteophytes are not particularly worrisome. They document wear ; tear on your back which should be no surprise if you are pushing cars and are 67. If you have local back pain you probably more likely have a muscular injury from exertion. If pain radiates into legs, MRI would be more helpful.