A man from East Yorkshire has become the first person in the country to have a hip replacement and go home on the same day.
71-year-old Chris Walker had the operation at Castle Hill Hospital - and was then discharged just ten hours later.
The former electrician is the first of 20 people who have been selected for the new treatment program for hip and knee surgery patients.
Each will undergo intensive pre-op and post op physiotherapy at Castle Hill hospital in Cottingham.
The trial has been part-funded by Sheffield firm JRI Orthopaedics, which makes the Furlong hip implants used in the trial.
The surgery for the treatment is exactly the same as any other hip or knee replacement , but makes use of new before and aftercare methods to shorten hospital stays.
Every day that a patient stays in hospital, it costs the NHS up to £400.
Click below to watch Ben Turner's report: