The mandatory supervised internship corresponds to the discipline taken in the 11th period of the Bachelor of Veterinary Medicine course at UFRPE, with a total workload of 420 hours, with the objective of encouraging the student to develop practical skills in the intended area of activity. It was developed under the guidance of Professor Lílian Sabrina Silvestre de Andrade and supervision of Dr. Jackson de Oliveira Siqueira. The present work is divided into two chapters, where the first reports the activities experienced during the period from November 07, 2022 to January 20, 2023, in the surgical clinic area of Hospital Veterinário Harmonia. In the second chapter, a case report is described of a dog diagnosed with rupture of the cranial cruciate ligament in the right pelvic limb, submitted to tibial plateau leveling osteotomy (TPLO), in order to elucidate the pathophysiology and treatment of this condition with high prevalence rate in dogs.
