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KMID : 1040920220070010068
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Journal of Minimally Invasive Spine Surgery and Technique
2022 Volume.7 No. 1 p.68 ~ p.83
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End-points of Decompression of in Lumbar Transforaminal Endoscopic Spine Surgery: A Narrative Review of Objective and Subjective Criteria to Prevent Failures
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Krishnan Ajay
Marathe Nandan
Degulmadi Devanand
Mayi Shivanand
Ranjan Ravi
Bali Shiv Kumar
Parmar Vatsal
Amin Pratham C.
Krishnan Preety A.
Dave Mirant R.
Dave Bharat R.
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Abstract
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Objective: Executions of indications/extended indications are associated with higher than normal rates of symptomatic recurrences and treatment failures, especially for novice surgeons incorporating Percutaneous Transforaminal endoscopic lumbar discectomy/decompression (PTELD) techniques. Causes of failures can be manifold and can occur because of a residual or a complete fragment causing persistent compression or associated unaddressed stenosis. To prevent this problem, proper training, multiple instrument inventory, variable techniques are needed with progressive learning. Authors aim to suggest objective and subjective criteria to define end-points/adequacy of decompression (EPD).
Methods: PubMed database search was limited to locate only adequacy of decompression of PTELD and thus included specific keywords: “ENDPOINT” OR “ADEQUATE” AND “DECOMPRESSION” AND “TRANSFORAMINAL” AND “ENDOSCOPY”. Authors added their experience to refine and define multiple EPD.
Results: In the search we found 12 articles total. Upon reviewing these, we found 7 articles matching our criteria. Cross references of included articles were searched, 5 additional articles were included. EPD were described in only 9 articles. Author’s experience with other relevant references were added to complete the viewpoint (EPD, n=29). Direct observed/provoked EPD and inferred EPD were defined separately. Videos, illustrations and descriptions of each EPD are illustrated to provide the ideation.
Conclusion: EPD are variable and not all signs may be elicited in every case and may change with surgeon experience. The ability to recognize EPD is the crux for successful outcomes and maximum possible EPD’s should be aimed in every surgery to avoid failures.
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KEYWORD
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End point, Decompression, Percutaneous, trans foraminal, Endoscopy, Spine, Surgery
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