Molly Meldrum's near-fatal fall has drawn attention to the high incidence of ladder mishaps.

Since the music guru's accident on Thursday, there have been at least four serious ladder falls in Victoria.

Ambulance Victoria reports that three men, all over 50, had nasty falls while working on ladders and one remains in a critical condition in hospital.

Paramedics had to stop beside the Monash Freeway to put a 58-year-old man into a coma on the way to hospital when his condition deteriorated after falling two metres off a ladder yesterday morning.

Intensive care paramedic David Mati said the man was trimming hedges at home in Waverley when he fell onto concrete paving, suffering significant head injuries.