A suturing backstop is disclosed. The suturing backstop has a suturing device receiver configured to receive at least a portion of a tissue bite area of a suturing device. The suturing backstop also has a sewing cuff receptacle. The suturing backstop further has one or more needle guides adjacent the sewing cuff receptacle. The suturing backstop also has one or more alignment stops configured to position said portion of the tissue bite area within the suturing device receiver such that when a needle from the suturing device is extended from a retracted to an engaged position, the needle passes through the sewing cuff receptacle and through a corresponding one of the one or more needle guides. A related method for placing sutures into a sewing cuff of a prosthetic replacement device is also disclosed.