We studied the clinical results of 86 patients who were followed up for more than three years after percutaneous discectomy for lumbar disc herniation. They consisted of 61 males and 25 females aged 13-66 years (mean, 35.9 years).
Results were evaluated according to the questionnaire based on JOA score and Macnab's criteria.
Treatment was considered to have been effective when the evaluation was “excellent” or “good”.
In this study, percutaneous discectomy was effective in 55 patients (64.0%). A salvage operation was added to 13 patients who were resistant to percutaneous discectomy.