Hope you are doing well after your incident. It is highly unlikely that your breast implants will burst after a fall. However, if you notice bumps in your breasts, deflation, chest pain and/or swelling, or if your breasts suddenly become hard, it is very likely that your implants have ruptured...
Your breast more so on the right looks a bit low but it may not be. I have used a thong bra which can be purchased online in some patients that I have repaired a bottoming out. Best to check with your surgeon.
Silicone leak (except from the recently recalled PIP implants) is not dangerous; silicone is used in joint replacements and other medical devices.
Breast implants from the 1980s had thinner shells and much more liquid silicone than is used today.
The silicone used in implants now is much...