Update on Preoperative Embolization of Bone Metastases

Area of Science:

• Oncology
• Interventional Radiology
• Orthopedic Surgery

Background:

• Bone metastasis management is complex, requiring multidisciplinary care.
• Preoperative embolization is a key strategy for reducing surgical bleeding.
• Identifying optimal candidates for embolization is crucial.

Purpose of the Study:

• To review current indications, contraindications, techniques, and efficacy of preoperative embolization for bone metastases.
• To discuss advancements, new trends (transradial access, liquid embolics), and prognostic factors.
• To highlight the need for noninvasive methods to assess tumor vascularity.

Main Methods:

• Review of recent studies and technical advances in preoperative embolization.
• Analysis of factors influencing intraoperative blood loss and operative time.
• Discussion of skeletal and spinal metastases management.

Main Results:

• Preoperative embolization is generally safe and effective in reducing intraoperative blood loss.
• Large tumor size, high vascularity, longer embolization-surgery interval, and radical surgery correlate with increased blood loss.
• Newer techniques like transradial access and liquid embolics show promise.

Conclusions:

• Preoperative embolization is a valuable tool in managing bone metastases, particularly spinal and skeletal lesions.
• Further research is needed for noninvasive tumor vascularity assessment to optimize patient selection.
• Continued refinement of embolization techniques can enhance surgical outcomes for patients with bone metastases.