The 78-year-old Delilah hitmaker underwent surgery to replace his left hip last September after doctors found his cartilage had worn away.
Addressing his health in January, the veteran singer said the key to his speedy recovery had been exercise and keeping active.
“I’m completely recovered,” he said.
“I didn’t need the crutches on set of The Voice,” Sir Tom continued. “I had a cushion on my chair while filming but that is only because of got a habit of leaning back so it pushes me forward.”
The star, who appeared fit and well on The Voice UK this year, joked: “I think the left hip is better than the right one now.
“I love what I do, which is motivation. I take vitamins, walk two to give miles every day and I do cross training. You have to keep active,” he insisted.
When it comes to his downfalls, Sir Tom said he had a weak spot for chocolate, admitting: “I’m a chocoholic.
“I try to stay off desserts. If I was looking at a dessert in a restaurant, I would go to chocolate straight away.”
In recent months, the Sex Bomb singer was forced to cancel a string of concerts due to ill health.
A post from his social media page said at the time that he was being treated for a bacterial infection in hospital.
“The condition is being well managed and under doctor’s orders, appropriate recovery time and rest is advised,” the statement said.
He later returned to the stage after receiving doctors’ advice that he was ready to resume performing.
“Sir Tom would like to extend his heartfelt gratitude to everyone for their understanding and to those who have sent their supportive and uplifting messages over the past week,” a statement said.
“He is looking forward to continuing his summer tour, being back on stage and performing for his audience.”
However, Sir Tom had to cancel another show at York Racecourse due to adverse weather conditions.
“So disappointed about York last night and so sorry for you all,” he told his 577,000 Twitter followers. “But lightning is unpredictable, dangerous and causes havoc so much better safe than talking about something tragic today.
“Hopefully see you soon, we are working on it.”
Earlier this month, he once again took to Twitter to thank fans for their support after finishing his summer tour.
“Many thanks to all who came out for out show this summer,” he said. “We all had a wonderful time onstage, sharing great music, fantastic vibes, enjoying the long summer glow.
“Apologies again for the shows that didn’t happen, but hope to see you all soon next time, next place. Lots of love.”