Transcutaneous Lumbar Diskectomy for Internal Disk Derangement: A New Indication

Richard A. Marks, MD, Baylor/Richardson Medical Center, Richardson, Tex

South Med J. 2000;93(9) 

In This Article


Mean time from onset of symptoms to surgery was 15.0 ± 15.4 months (range, 4 to 82 months). Mean time of follow-up evaluation was 30.7 ± 17.9 months (range, 6 to 82 months). In these 103 patients, the overall subjective rating rate was excellent in 34 (33%), good in 31 (30%), fair in 21 (20%), and poor in 17 (17%).

The correlation coefficient showed that as age increased, the subjective rating decreased (P = -.225) The subjective results according to age groups are shown in Table 2. Of patients ≤45 years old, 65% had an excellent or good subjective outcome, compared with 54% of patients 46 and older.

The factors of sex, levels of disk surgery involved, and workers' compensation status had no statistically significant effect on the subjective rating outcome (Table 3). For patients receiving workers' compensation, 28 of 51 patients (55%) returned to work at the same level, and 14 of 51 patients (27%) returned to lighter duty work, which compared similarly to patients not receiving workers' compensation. Regression analysis of all factors found that age was a statistically significant factor (P = .0367).

Of the 17 patients whose results were rated as poor, 10 required subsequent surgery for continued symptoms. One had a posterolateral interbody fusion, 5 had anterolateral interbody fusions, 3 had 360° fusions, and 1 had a microlaminectomy.


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