Should We Check the Routine Postoperative MRI for Hematoma in Spinal Decompression Surgery?

Area of Science:

• Neurosurgery
• Radiology
• Spinal Surgery

Background:

• Postoperative MRI is standard for assessing spinal cord decompression and complications.
• This study evaluates the effectiveness of postoperative MRI in detecting hematoma after spinal decompression surgery.

Purpose of the Study:

• To analyze the efficacy of postoperative MRI for identifying hematoma in spinal decompression surgery.
• To determine the correlation between hematoma occurrence and patient factors or surgical outcomes.

Main Methods:

• Retrospective review of 185 patients undergoing spinal decompression surgery and postoperative MRI.
• Analysis of anticoagulant/antiplatelet use, blood counts, drainage, and clinical outcomes (VAS, ODI).
• Assessment of hematoma presence and thecal sac compression on MRI.

Main Results:

• Hematoma detected in 52.4% of patients; 30 had thecal sac compression.
• No significant difference in hematoma occurrence based on anticoagulant use or lab values.
• Hematoma presence correlated with increased suction drainage amount (p=0.022).
• No significant difference in visual analog scale (VAS) score reduction regardless of hematoma presence or thecal sac compression.

Conclusions:

• Postoperative MRI for hematoma in spinal decompression surgery has minimal impact on prognosis or management.
• Indiscriminate use of postoperative MRI should be avoided.
• MRI should be selectively performed based on patient status and clinical suspicion.