I had to take DD#2 to the orthopedic specialist because she has metatarsus adductus (the bones of her feet are curved) and the specialist said that it puts her at higher risk for hip dysplasia and ordered a x-ray of her hips. When I mentioned she was breech, he was shocked that her hips weren't checked earlier.
So, if your LO was breech, did they check to see if LO had hip dysplasia? He said it was a good thing we brought her in when we did at 5 months because before 6 months, it would require just a brace, after 6 months, a body cast for 3 months, and after a year, surgery.
DD#2 doesn't have it, but I was surprised that this was the first time I've heard of this.