| Home | Lectures | Notes | Images | Flashcards | Case of the Week Archives |
 | Bone | Cardiac | Chest | GI | Miscellaneous | Med Students | Most Common Lists | Quizzes |

Protrusio Acetabuli

• Occurs most often with rheumatoid arthritis

• Also occurs with osteoporosis

• Osteomalacia

• Paget’s

• Idiopathic

• Defined as 3mm or more between acetabular line and ilioischial line in men and 6 mm or more in women

• Erosion of cartilage in RA usually results in axial migration of head with uniform loss of joint space

• Protrusio acetabuli is usually bilateral

• Occurs more often in patients with RA who are on steroids

• About 14% of patients with RA will demonstrate this abnormality

| Home | Lectures | Notes | Images | Flashcards | Case of the Week Archives |
 | Bone | Cardiac | Chest | GI | Miscellaneous | Med Students | Most Common Lists | Quizzes |

Copyright © 2002 LearningRadiology.com