Abstract: Objective To investigate the value and clinical significance of MRI in diagnosis of subcortical trabecular injury in knee.Methods45 patients with obvious pain but no fracture diagnosed by X-ray after knee trauma were scanned with MRI to analyze whether having injuries in subcortical trabecular and knee joint accessory structures.ResultsAll of the 45 cases had normal radiographic results in X-ray examination, but subcortical trabecular injury was found by MRI. MRI demonstrated irregular low signal in the subcortical region on both T₁WI and T₂WI. The high signal in fat suppressed T2₂subcortical trabecular and knee joint accessory structures.

Key words: knee joint, trabecular injury, magnetic resonance imaging