The brace puts their legs into a position where it forces the ball into the socket. Legs end up on pretty full on angles, the best way I can describe it is almost frog like. DD had no muscle deterioration at all and required no physio either, but sometimes it can happen. She learned to commando crawl, roll and sit up in the second brace and she walked just before turning 18 months.

It doesn't restrict all movement - the straps that held DD's legs in place covered her thigh, so she could wriggle around her legs from knee down. The only time she was completely restricted was in the plaster cast.

Once the brace went on, we needed four adjustments over four weeks to gradually pull the legs up into position. If they do it in one shot, it can hurt baby and by doing it gradually, the muscles work with the brace, not against it. I could still b/f, we used the same pram and same car seat without any issues.