After reviewing frame by frame I see you lost the rear end on a man hole cover? Sewer/Water line access whichever. Was that wet or frosty or just too smooth for the tire to gain the required amount of purchase on? If I am correct whenever possible get the bike upright prior to hitting the obstacle/imperfection then compensate for the overshot corner when clear. Hope your injuries heal quickly and take care not to rush getting back in the saddle.