Zafer SenUniversity of Health Sciences Turkey, Turkey
Title: Evaluation of midterm clinical results in patients undergoing full endoscopic transforaminal and interlaminar discectomy
Objective: This study aims to evaluate the midterm results and complications in patients undergoing discectomy via a lumbar interlaminar
discectomy (ID) and transforaminal endoscopic discectomy (TFED) approaches.
Materials and Methods: Clinical and radiological data from 22 patients who underwent lumbar discectomy via transforaminal and interlaminar
techniques between 2016 and 2020 were evaluated. In all the patients, the diagnosis was made by history, physical examination, plain
radiography, and magnetic resonance imaging. Discectomy was performed using a minimally invasive method in patients that did not respond
to medical treatment and were symptomatic.
Results: Thirteen male (59.1%) and nine female (40.9%) patients participated in the study. The average age of the patients was 49.4 (37.0-
66.0). There was no significant difference between the groups in terms of gender and age (p>0.05). All patients had radicular leg pain that was
unresponsive to medical treatment. There was no loss of mobility and muscle strength in the legs of 4 patients in the postoperative period.
The preoperative visual analog scale score was 8.36, whereas the scores in the 3rd and 10th months decreased significantly to 2.14 and 2.59,
respectively (p<0.001). According to MacNab classification, only 1 patient in each group was classified as “fair”; 91.7% of the patients in ID
group were classified as “excellent”, whereas 90.0% of the patients in TFED group were classified as “good” (p<0.001).
Conclusion: It was concluded that endoscopic discectomy techniques were found to be successful and reliable in selected patients. Moreover,
the surgeon’s experience directly affected the success of the surgery of discectomy.
Keywords: Lumbar disc herniation, transforaminal endoscopic discectomy, interlaminar discectomy