Kristina Vogel in stable condition but remains in intensive care

Gold medalist Germany's Kristina Vogel celebrates on the podium after taking part in the women's sprint final during the UCI Track Cycling World Championships

Gold medalist Germany's Kristina Vogel celebrates on the podium after taking part in the women's sprint final during the UCI Track Cycling World Championships (Image credit: Michael Aisner)

Track rider Kristina Vogel has undergone a successful operation but remains in intensive care following her training accident on the Cottbus velodrome in Germany on Tuesday.