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Acta Cirúrgica Brasileira

versão impressa ISSN 0102-8650versão On-line ISSN 1678-2674


AMATO, Marcelo Campos Moraes et al. Experimental model for transforaminal endoscopic spine. Acta Cir. Bras. [online]. 2018, vol.33, n.12, pp.1078-1086. ISSN 1678-2674.


To validate the porcine spine as a model for learning and practicing transforaminal percutaneous endoscopic lumbar procedures (TF-PELP).


TF-PELP was performed in three porcine cadaver lumbar spine levels. Anatomical features of the current cadaver were compared to human and porcine spines. Performance and documentation of endoscopic procedures were described.


This study shows that this representative animal model reflects anatomical characteristics of the human spine. Transforaminal approaches were successfully completed. Although lower disc heights make disc puncture more difficult, the outside-in technique is feasible and more useful to identify anatomical parameters and to practice different surgical steps and maneuvers.


This is an effective and representative model for learning and practicing this procedure. Difficulties of the procedure, as well as the differences compared to the human spine, were described.

Palavras-chave : Discectomy; Percutaneous; Endoscopy; Intervertebral Disc Displacement; Lumbar Vertebrae; Learning Curve; Models; Animal.

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