Observation on clinical outcome of discectomy through interlaminar access by transforaminal endoscope in treating massive lumbar disc herniation
RUI Gang
LIN Sheng-rong
SUN Nai-kun
FENG Jin-yi
HU Bao-shan
Abstract：Objective To evaluate the clinical outcome and safety of discectomy through interlaminar access by transforaminal endoscopy in treating massive lumbar disc herniation.Methods The preoperative and postoperative MRI and CT data of patients with lumbar disc herniation were evaluated by 2 researchers independently. Before surgery, the patients with lumbar canal encroachment ratio>50% were diagnosed as massive lumbar disc herniation and underwent discectomy through interlaminar access by transforaminal endoscope. Preoperative and postoperative radiological and clinical parameters including the compression degree of dural sac or nerve root, visual analogue scale ( VAS ) of low back pain and MacNab score were compared to evaluate the curative effect and safety of this surgery. Results All the surgeries were successful with the mean operation time of 60 minutes per segment, mean blood loss of 15 ml without complications. After surgery, the herniated disc of all patients was removed with dural sac or nerve root being decompressed completely according to MRI and CT. The VAS at ifrst day and 3 months after surgery both decreased signiifcantly compared with preoperative values ( P< 0.01 ). The numbers of patients who were evaluated as excellent, good, fair and poor at 3 months after surgery were 64, 34, 3 and 1 respectively and the final rate of curative effect reached 96.1% according to MacNab score.Conclusions Discectomy through interlaminar access by transforaminal endoscope is safe and can obtain favorable clinical outcome in treating massive lumbar disc herniation.
Keywords：Surgical proceduresminimally invasiveEndoscopesLumbar vertebraeIntervertebral disc displacement
Publication Date：2016-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：4( 367-370 )