Bone bruise in magnetic resonance imaging strongly correlates with the production of joint effusion and with knee osteoarthritis.

Background: The findings of magnetic resonance imaging (MRI) have not been studied systematically in patients with osteoarthritis (OA). The objective here was to compare MRI findings with radiological findings in patients with knee pain and to identify factors that influence the progression of OA of the knee.

Methods: Of 212 patients with knee pain and MRI of the knee joint, 161 patients were selected for the study after exclusion of cases of trauma and other arthritides.

Vertebral body fracture of the lumbar spine in elderly women: more severe in osteoarthritis of the knee than in femoral neck fracture.

This study investigated bone fragility by comparing fractures of the vertebral body of the spine in elderly women receiving total knee replacement (TKR) (group 1) due to severe osteoarthritis of the knee and those with femoral neck fractures (group 2) attributable to osteoporosis. Forty-two women each were selected retrospectively for group 1 and prospectively for group 2. Patient age ranged from 64-83 years.