A theatre porter was forced to give up his 14-year career and face the daily risk of developing a fatal blood clot after a workplace accident.
John Beresford, from Nottingham, has to take medication for the rest of his life to avoid a clot, after developing Deep Vein Thrombosis (DVT) from twisting his knee at work.
The 64-year-old, who worked for Nottingham Universities Hospitals NHS Trust, was expected to use an old supermarket trolley to collect gas canisters needed for theatre.
On the day of the accident, a stone got caught under the back wheel, causing it to swerve into the path of an oncoming car.
Mr Beresford tore his left knee trying to steady the trolley and now suffers from long-term knee problems, which have forced him to retire.
John Beresford said: