I believe you're omitting crucial information. Did she endorse the check, did she know about your claim? Answering these questions will be important to determine whether she is entitled to a portion of your settlement, which I believe is what you want to know.
More information is needed, but usually with a serious injury such as yours, if you can prove negligence and causation, then there is a possibility for recovery. Contact a personal injury attorney for consultation.
If for some reason (new charges, failure to appear, or arrest warrant issued) the bond is revoked, the court will order bond estreature, after which the bondsman will produce the defendant, file a motion to vacate the bond estreature and discharge the bond. I can't think of any other reason why a bond would be discharged while the case is pending. Consult with a competent criminal defense attorney.