Mo. Rev. Stat. § 547.220: Defendant to make recognizance in cases of appeal.

If an appeal be granted, the court below shall order the defendant to be committed or recognized, and the recognizance shall be to the same effect as the recognizance required when the defendant himself is appellant; and the party, if committed, shall be held in custody until the judgment of the supreme court shall have been passed on the case, to abide such judgment.