Intralesional Ethibloc Injections in Bone Cysts

Area of Science:

• Orthopedics
• Radiology
• Surgical Oncology

Background:

• Benign bone cysts, including aneurysmal and unicameral types, pose a risk of pathological fractures.
• Surgical intervention for these cysts can be invasive, prompting the exploration of less invasive alternatives.

Purpose of the Study:

• To review and describe various percutaneous injection treatments for unicameral and aneurysmal bone cysts.
• To highlight the importance of histological confirmation prior to percutaneous interventions.

Main Methods:

• Review of percutaneous treatment modalities for benign bone cysts.
• Description of local injections of steroids, calcitonin, or bone marrow for unicameral bone cysts.
• Description of Ethibloc® injection for both unicameral and aneurysmal bone cysts.

Main Results:

• Percutaneous injections represent a less invasive therapeutic option compared to surgery.
• Histological modifications within the cyst are common post-injection due to the fibrogenic nature of the agents used.
• Ethibloc® is indicated for both unicameral and aneurysmal bone cysts.

Conclusions:

• Percutaneous injections provide a viable, less invasive treatment strategy for benign bone cysts.
• Histological verification is essential before initiating percutaneous injections, especially for aneurysmal bone cysts, to ensure appropriate management and predict outcomes.