ABSTRACT
Objective To improve both the technique and the clinical application of CT-guided percutaneous aspiration biopsy for sacral lesions. Methods CT-guided percutaneous aspiration biopsy was performed in 21 patients with sacral lesions. By using Ackerman drilling needle, trigger type biopsy needle or Chiba needle, both bony and non-bony specimens were collected. Results The procedure was successfully done in all patients and the pathologic diagnosis was obtained in 95.2%. Failure occurred in one case as only necrotic tissue and blood clot were collected in biopsy. Conclusion As a simple, safe and reliable technique, CT-guided percutaneous aspiration biopsy is very helpful in making correct preoperative diagnosis, providing important preoperative reference for the surgeons.