I think it would help, especially if you're doing gym exercises that isolate muscles. Leg curls, etc. are great for the big muscles, but are not helping the stabilizers, except in a marginal way.
I took the PT exercises and added weights (side leg raises with 2, 3, 5 lb weights), continued with the pilates type exercises for the core. Maybe a pilates class would help out, or yoga when you're there. I actually hired a personal trainer for a month after PT was done, to work with me on integrating the core exercises into my main routine. I told her what I wanted to do (power, flexibility and strengthening the core), and we made a workout regime that I try to stick to. So far, I've done about 8 months of it, and it has helped the hips get strong.
I also have some things at home that, with minor investment, help:
- The roller for loosening muscles. works wonders for IT issues
- Some juggling balls (actually leather bags), for muscle memory / shifting hips.
- Balance on a pillow.
- A slide board for doing skating movements (really good for the side to side movement).
I'm planning on getting a wobble board after Danny mentioned it to use that for balance issues. I'm planning on returning to soccer in about six months, so I need support for fast cutting.
One goofy thing I'm doing is shaving while balancing on one leg. Sure keeps your attention.