I know the post was written about 2 weeks ago, but I can sympathize and had to post. One of my dogs was born with a birth defect (ectopic ureter), which ended up causing her to have a weak sphincter muscle of the urethra as a side effect. I know your dog doesn't have a birth defect, but the pottying can be from the same issue (incontinence). Casey, our dog, would "leak" at night and we were told that nothing would help. I insisted on trying incontinence drugs since worst case it doesn't work. She is a 65 lb dog and takes PPA 75 mg, twice a day. (Also, cream cheese works great for us...it is cheaper than hot dogs too!). The PPA has worked GREAT! She doesn't leak much at all now! The incontinence was just a side effect of her defect. Her injuries may have caused damage to her muscles...even if only short term. It doesn't hurt to try it. Also, Casey is good about staying on her bed at night, so we got a couple waterproof pads (like they use in baby cribs and nursing homes) and put them over her bed. She doesn't think she is being punished for her leaking (as lame as it sounds, Casey is self conscious about her leaking because she thinks she pottied in the house) and we just switch them out when we toss one in the wash. Saves her bed too!