From The Telegraph in the UK:The 22-year-old stood sentry in the famous bearskin cap less than two years after being injured by a bomb blast that killed one of his colleagues.
Guardsman Blaney from Nuneaton, Warwickshire, now hopes to return with his regiment to Afghanistan as well as represent Britain at the London 2012 Paralympics.
Describing his return to ceremonial work, he said: "It made me feel really proud to be back on duty and serving my country."
The soldier, who walks with the aid of a false limb and is jokingly called "Hoppy" by his army friends, told The Sun: "I slipped very slightly on the icy cobbles but was able to recover my footing and I don't think anyone noticed.
"I did my full two hour rota split into shifts and I can't wait to do it again."
Guardsman Blaney was able to resume his duties after the commanding officer of the Grenadier Guards vowed that he and two colleagues who lost limbs fighting the Taliban would be allowed to stay with the regiment.
Lt Col Carew Hatherley, who handed over command last month, described the soldier as a "credit to the nation".
Guardsman Blaney had only been in Afghanistan for a month when he was seriously injured by an explosion during a foot patrol in May 2007.
His right leg had to be amputated at Camp Bastion, the British military base, and he also suffered shrapnel wounds to his right arm and eye.
If not for the quick response of his colleagues and officers he says he may not have survived the blast. "Within seconds of the blast my mates were applying first aid to stem the bleeding," he said.
"Then drill sergeant Daz Chant, who is a man mountain, put me on his shoulders and ran more than a mile to the point where the chopper had flown in to evacuate me. Without him, the other lads, and the platoon commander Captain Andrew Turbull, I'd never have made it."
Grenadier Blaney said that he wants to make the best of his injury and last month attended a talent day organised by the British Paralympic Association with the hope of being fast-tracked into Team GB for 2012.
He hopes to be recruited a cyclist, but has also turned his hand to shooting, running and rowing."It would be brilliant to get in to the Paralympics, it would be an honour. If anyone had the chance to serve their country in the Paralympics anyone would train hard for it," he said.
Soldiers of the Queen's Guard are charged with protecting royal residences in London including Buckingham Palace, St James's Palace and the Tower of London, as well as Windsor Castle. They are usually supplied by one of the five foot guard regiments, which include the Grenadier Guards.
