My memory is that she tore her Achilles from her heel in the middle of her career and then returned. Nothing I could find on the web agrees with this. Does anyone have either actual knowledge or a more extensive web search?
As I recall, she had surgery on both legs. She ran 11.30 behind Koch and Wockel in her seasonal debut and said "things looked grim", but her form picked up and she re-established herself as the top GDR 100 sprinter. Her recovery went very well because from 82 on she was better than ever, and seemed free from injury problems until 86.