Oh my what an adorable picture that is!
Look at that little head poking out.

I will be honest and say my neighbor had a little 5lb chi
and got a stroller similar to yours. The first time I saw it
I laughed but thought what a great idea. She use to carry
her little one in a pouch in front of her and take her for a walk
every night after work. So the stroller was something that the pup
could be free in and enjoy a nice stroll also.
Whoever thought of this idea sure made a bundle because it certainly
was a great idea.
Hope your little one's leg heals nicely.