How to differentiate between primary and secondary synovial osteochondromatosis?
In secondary type the loose bodies are few in number and variable in size.
Multiple intra articular loose bodies display hypointense signal in all pulse sequences associated with osteoarthritic changes of theknee joints showing denudation of articular surfaces and marginal osteophytosis.
Complete ACL tear with secondary signs e.g. buckled PCL and anterior tibial translation.