Ruptured Baker's cyst: a radiological diagnosis

Area of Science:

• Orthopedics
• Radiology
• Rheumatology

Background:

• Baker's cysts, fluid collections behind the knee, can rupture.
• Ruptured Baker's cysts present symptoms similar to deep vein thrombosis (DVT), or thrombophlebitis.
• Accurate differentiation is vital due to differing treatment protocols.

Purpose of the Study:

• To highlight the clinical presentation of ruptured Baker's cysts.
• To emphasize the importance of distinguishing ruptured Baker's cysts from thrombophlebitis.
• To present findings from a series of patients with pseudothrombophlebitis syndrome.

Main Methods:

• Clinical case review of patients presenting with pseudothrombophlebitis.
• Diagnostic confirmation using arthrography.
• Analysis of patient history, focusing on knee disease and joint effusions.

Main Results:

• Seven out of eight patients diagnosed with ruptured Baker's cysts via arthrography.
• One patient presented with an intact Baker's cyst.
• Clinical history of knee disease (e.g., rheumatoid arthritis) and joint effusion were key indicators.

Conclusions:

• Ruptured Baker's cysts are a significant cause of pseudothrombophlebitis.
• Arthrography is a reliable method for diagnosing ruptured Baker's cysts.
• Early and accurate diagnosis prevents unnecessary anticoagulation for DVT.