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Ruptured Baker's Cyst Demystified: Current Evidence, Diagnostic Strategies, and Treatment Options for an
Hassan Zmerly1,2,3, Luigi Di Lorenzo4, Vanessa Mahfouz5
1Department of Orthopedics, Villa Erbosa - Gruppo San Donato, Bologna, ITA.
Cureus
|January 19, 2026
Summary
Ruptured Baker's cysts mimic deep vein thrombosis, causing calf pain and swelling. Accurate diagnosis via imaging and conservative treatment are key for managing this uncommon complication.
Area of Science:
- Orthopedics
- Radiology
- Vascular Surgery
Background:
- Baker's cysts are common in knee disorders.
- Rupture is an uncommon but significant complication.
- Ruptured cysts present with calf pain and swelling, mimicking deep vein thrombosis.
Purpose of the Study:
- To review the clinical presentation of ruptured Baker's cysts.
- To discuss diagnostic challenges and imaging strategies.
- To outline management options for ruptured Baker's cysts.
Main Methods:
- Literature review of current evidence.
- Synthesis of diagnostic and management strategies.
- Focus on imaging modalities like ultrasound and MRI.
Main Results:
- Ruptured Baker's cysts can be mistaken for deep vein thrombosis.
- Duplex ultrasonography is crucial for excluding deep vein thrombosis.
- Musculoskeletal ultrasound and MRI aid in identifying fluid collections and cyst anatomy.
- Most cases resolve with conservative treatment (rest, ice, compression, elevation, anti-inflammatories).
- Interventional procedures like aspiration or corticosteroid injection may be needed for persistent cases.
- Surgery is reserved for refractory symptoms or underlying joint pathology.
Conclusions:
- Ruptured Baker's cysts require accurate diagnosis to differentiate from deep vein thrombosis.
- Conservative management is effective for most cases.
- Advanced imaging and interventional techniques play a role in complex or persistent cases.
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