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Updated: Aug 23, 2026

A Mobile Outside-in Technique of Transforaminal Lumbar Endoscopy for Lumbar Disc Herniations
Published on: August 7, 2018
[Localization for collagenase injection through the lateral crypt for lumbar disc herniation]
1Department of Radiology, People's Hospital of Gaozhou City, Gaozhou 525200, China. zhupeigui999@yahoo.com.cn
Objective:
To find a more reliable and effective localization method for collagenase injection through the lateral crypt for the treatment of lumbar disc herniation.
Methods:
Before collagenase injection for lumbar disc chemonucleolysis, the site with obvious tenderness was labeled with a lead marker on the surface of the intervertebral space, followed by a more accurate localization with the assistance of X-ray, chest fluoroscopy and CT.
Results:
Satisfactory results were achieved in 88.3% of the cases using the new localization method, with an overall improvement rate of 95.9%, which were 10.5% and 6.7% higher than those of cases without using the method.
Conclusion:
Localization with lead markers in combination with X-ray, chest fluoroscopy and CT is more accurate, safe, economic and effective for collagenase injection through the lateral crypt in the treatment of lumbar disc herniation.
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