Silicone Implant Slides Around and is Painful - What is the Cause and How Can I Correct it?

It is impossible to say without seeing you personally, but in general if the pocket size is too large for the implant then it can move. I have seen cases where this is associated with pain and it gets better after making the pocket smaller, but it is a difficult thing to predict.

When a patient complains about the implant moving too far to the side, whether it is a breast augmentation patient or a breast reconstruction patient, the answer is generally the same.  The lateral pocket needs to be reinforced and secured so that the implant cannot move as far as it does now.  This can be done by reinforcing the lateral aspect with sutures, as well as adding some biologic material to really secure the areas internally.  Any plastic surgeon who performs breast reconstruction on a regular basis should be very familiar with these techniques.  I hope this helps.

Since your injury your implants hurt, it is likely that correcting the pocket of the implant will help your symptoms considerably.