Comparison of Tissue Damages after Traditional Open Decompression and Biportal Endoscopic Decompression for Lumbar Spinal Stenosis
Yingyong T, MD1, Jaroon J, MD1
Affiliation : 1 Department of Orthopedic Surgery, HRH Maha Chakri Sirindhorn Medical Center, Faculty of Medicine, Srinakharinwirot University, Nakhon Nayok, Thailand
Background : Posterior decompression has been the most common surgical procedure for lumbar spinal stenosis. Endoscopic
decompression is a new surgical technique for spinal stenosis decompression. Subjective outcomes after the procedure, VAS and
functional scores, were very satisfying but there were no reports published on the amount of tissue damage for this procedure.
Objective : To evaluate the paravertebral muscles and soft tissue destruction between two methods of spinal decompression by
muscle enzyme, CRP and size of muscle destruction.
Materials and Methods : Study design. A cohort series of two groups of the patients, open decompression and BPED, who underwent
spinal stenosis decompression were compared in postoperative outcomes such as modified Macnab criteria, VAS, CPK, and CRP.
Results : The CRP and CPK level were significantly lower in BPED group than in open decompression group at 24 and 72 hours after
surgery (p<0.05). Size of soft tissue destructions after BPED were 35+18 milliliters.
Conclusion : Postoperative CPK and CRP level of BPED were statistically significant lower than conventional laminectomy.
Keywords : Endoscope, Biportal, Two portal, Spinal stenosis, Decompression, CPK, CRP, Muscle enzyme, Tissue damage
