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Evaluation of transforaminal endoscopic lumbar discectomy in the treatment of lumbar disc herniation

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Abstract

Purpose

The purpose of this study was to evaluate the efficacy of transforaminal endoscopic lumbar discectomy (TELD) in the treatment of lumbar disc herniation (LDH) and to identify the relationship between TELD efficacy and age.

Methods

A total of 207 consecutive LDH patients who had undergone TELD with the THESSYS system from January 2013 to September 2014 were divided into two groups on the basis of their age, with 108 cases in the ≤45-year-old age group and 99 cases in the >45-year-old group. The Oswestry Disability Index (ODI) was used to quantify the pain relief. The degree of pain and disability were measured on the basis of the visual analog scale (VAS) and the modified MacNab criteria. Complications, duration of hospital stay, surgical costs, and operation time were recorded and compared between the two groups. Spearman’s coefficient of rank correlation was used to assess the learning curves for TELD.

Results

The mean pre-operative and postoperative VAS and ODI scores significantly improved in both age ≤45 group and age >45 group, with no significant differences between them. In age ≤45 group, 56 % had excellent outcomes, 28 % good, 14 % fair, and 3 % poor. In the age >45 group, 51 % had excellent outcomes, 20 % good, 25 % fair, and 4 % poor. The average lengths of hospital stay for the age ≤45 group and age >45 group were 6.8 and 8.4 days, respectively. The mean time to return to work or normal activities was ten days for the age ≤45 group and 15 days for the age >45 group. The mean operative time for the age ≤45 group was 94 minutes and that for age >45 group was 97 minutes. The surgical cost of age ≤45 group was 15,480 RMB, which was lower than the 16,381 RMB of age >45 group. A total of 14 patients in the age ≤45 group and 13 patients in age >45 group used analgesic medications. Three and five recurrences were reported in the age ≤45 group and age >45, respectively. The steep learning curves of operative time plotted against the number of surgeries conducted suggest that the TELD technique can be mastered quickly in terms of reducing the duration of operation.

Conclusions

The efficacy of TELD is relatively good for the selected young and elderly patients in this study. Therefore, age is not a predictor of TELD surgery-related outcomes.

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Acknowledgments

The work was supported by the Science and Technology Department of Jiangsu Province, China (BL2013031). We would like to acknowledge Dr. Su-Yang Zhuang, Dr. Zeng-Xin Gao, Dr. Yun-Tao Wang, Dr. Zan-Li Jiang, and Dr. Shao-Dong Zhang for their tremendous contributions to this manuscript.

Conflict of interest

No potential conflict of interest relevant to this article was reported.

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Correspondence to Xiao-Tao Wu.

Additional information

Kun Wang and Xin Hong contributed equally to this work.

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Wang, K., Hong, X., Zhou, BY. et al. Evaluation of transforaminal endoscopic lumbar discectomy in the treatment of lumbar disc herniation. International Orthopaedics (SICOT) 39, 1599–1604 (2015). https://doi.org/10.1007/s00264-015-2747-1

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  • DOI: https://doi.org/10.1007/s00264-015-2747-1

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