Very good insight matter 2003 to a serious problem.
Would wearing knee braces in practice and non regular season games help ?
Seems like more fabric braces are starting to come on the market.
A quick look seems MRI is safe
Magnetic resonance imaging, or MRI, is a way of obtaining very detailed images of organs and tissues throughout the body without the need for x-rays or "ionizing" radiation. Instead, MRI uses a powerful magnetic field, radio waves, rapidly changing magnetic fields, and a computer to create images that show whether or not there is an injury, disease process, or abnormal condition present.
http://www.radiologyinfo.org/en/info.cfm?pg=safety-mr