Lumbar Spinal Stenosis and Minimally Invasive Lumbar Decompression: A Narrative Review.

BACKGROUND

Lumbar spinal stenosis (LSS) is a common pain condition that causes lumbar back pain, radiating leg pain, and possible functional impairment. is an emerging minimally invasive treatment for LSS. It is an image-guided percutaneous procedure designed to debulk hypertrophied ligamentum flavum. However, the exact short- and long-term efficacy, safety profile, indication criteria, and certain procedure details reported in medical literature vary.

OBJECTIVE

This narrative review was to elucidate efficacy, safety profile, certain procedure details, advantages, and limitations of

STUDY DESIGN

This is a narrative review.

SETTING

All included articles are clinic trials including analytic studies and descriptive studies.

METHODS

PubMed, Cochrane Library, and Scopus were searched. Only clinical trials of procedure were included. Information of indications, contraindications, VAS scores, ODI scores, effective rate, efficacy durations, and certain procedure details was focused on.

RESULTS

According to the literature, for the procedure, the VAS score could be reduced from a pre-treatment level of 6.3-9.6 to a post-treatment level of 2.3-5.8. The ODI score could be reduced from a pre-treatment level of 38.8-55.3 to a post-treatment level of 27.4-39.8. The effective rate of the procedure was reported to be 57.1%-88%. A 2-year postoperative stability of efficacy was also supported. One RCT study testified superior efficacy of over epidural steroid injection.

LIMITATIONS

There is few high-quality literature in the review. Moreover, the long-term efficacy of cannot be revealed according to the current literature.

CONCLUSION

Based on the reviewed literature, is an effective and safe procedure. can reduce pain intensity and improve functional status significantly. Therefore, it is a preferable option for LSS patients who failed conservative treatments, but not for those who require immediate invasive decompression surgery.