The team said the arthroscopic procedure removed a "moderate amount of debris" from Arenas's knee.
Since the storm, a certain amount of debris has been removed, and some serenity restored.
All space-faring countries should comply with international guidelines to minimise the amount of debris created by launches.
The quake left an astonishing amount of debris, including concrete and rebar from collapsed buildings, destroyed belongings and human remains.
"When I came to the surface, there was nothing except a tremendous amount of debris and many, many people swimming in the water.
Remodeling actually ends up generating more than one and a half times the amount of debris every year that demolishing homes does.
While these failures may soon be overcome, a more intractable problem is the growing amount of debris and redundant craft in orbit.
Under the sea management program, ranger teams conduct beach cleanups, including logging the amount of debris, and are the first responders for beached or injured marine life.
The Air Force estimates that the amount of debris flying around in low-earth orbit is rising by 5percentt a year.
According to the report, the amount of debris cluttering low Earth orbit has risen dramatically in half a century of spacefaring.
Rolls-Royce, based in Britain, acknowledged that the engine had suffered an "uncontained failure," in which a limited amount of debris spewed into the test facility.
