• AmatoMarcelo Campos MoraesMCMPhD, Amato - Instituto de Medicina Avançada, Sao Paulo-SP, Brazil. Conception and design of the study; acquisition, analysis and interpretation of data; technical procedures; manuscript preparation and writing; final approval., Bruno César Aprile, OliveiraCézar Augusto deCAMD, Amato - Instituto de Medicina Avançada, Sao Paulo-SP, Brazil. Technical procedures, acquisition of data., Vinicius Marques Carneiro, and OliveiraRicardo Santos deRSPhD, Division of Neurosurgery and Pediatric Neurosurgery, Department of Surgery and Anatomy, Hospital Universitário, Ribeirao Preto Medical School, USP, Ribeirao Preto-SP, Brazil. Critical revision, final approval..
• PhD, Amato - Instituto de Medicina Avançada, Sao Paulo-SP, Brazil. Conception and design of the study; acquisition, analysis and interpretation of data; technical procedures; manuscript preparation and writing; final approval.
• Acta Cir Bras. 2018 Dec 1; 33 (12): 1078-1086.

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

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