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  • Title: Incidence and Implications of Incidental Durotomy in Transforaminal Endoscopic Spine Surgery: Case Series.
    Author: Telfeian AE, Shen J, Ali R, Oyelese A, Fridley J, Gokaslan ZL.
    Journal: World Neurosurg; 2020 Feb; 134():e951-e955. PubMed ID: 31734429.
    Abstract:
    OBJECTIVE: To evaluate the incidence and outcomes of incidental durotomy in transforaminal endoscopic spine surgery. METHODS: Transforaminal lumbar endoscopic procedures were performed by 2 surgeons in 907 patients over a period of 4 years from 2014 to 2018. Patient data were evaluated retrospectively in these patients with a minimum follow-up of 1 year. RESULTS: In 907 patients over 4 years there were 5 durotomies: 4 incidental and 1 intentional. The rate for incidental durotomy was therefore 0.4%. There were no adverse outcomes from the incidental durotomies, and only 1 patient noted a headache. CONCLUSIONS: Incidental durotomy is a rare complication of transforaminal lumbar endoscopic spine surgery and appears to occur more likely in patients who have undergone previous spine surgery at the site of the endoscopic procedure, not unexpectantly. Glues, patches, and bedrest were among the various methods used after durotomy. In this series there were no cases of symptomatic spinal fluid leakage or pseudomeningocele seen. Only 20% of patients who had durotomies noted a headache in the immediate postoperative period.
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