The simian Alouatta fusca, is one of the biggest neotropical primates, measuring 30-75 cm. The species is present in Brazilian rainforest, from Bahia to Rio Grande do Sul and also Minas Gerais in Caratinga reserve. Wild animal anesthesia should have as a feature easy delivery and satisfactory results in containment and manipulation of patients, decreasing side effects. A balanced anesthesia is understood as general anesthesia, promoted by two or more agents or distinct anesthetic techniques, for example, regional and inhalation anesthesia, combined in the same anesthetic procedure, bringing more safety to the patient. The present study describes balanced anesthesia to Alloata fusca submitted to humerus osteosynthesis and tibio-tarsal arthrodesis. Initial sedation was made with 15mg/kg of ketamine associated to 0,5mg/kg of midazolam through intramuscular injection, after 10 minutes venous access was established in right cephalic vein using 20G endovenous catheter and the patient was submitted to mask induction with isoflurane, followed by orotracheal intubation with laryngoscope with straight blade number 4 and endotracheal catheter number 5 with cuff, after anesthetic stabilization a supraclavicular plexus blockage and ischiatic nerve blockage associated to saphenous nerve was made, both made with peripheral nerve stimulator. As local anesthetic we used lidocaine 2% without vasoconstrictor at the dose of 4mg/kg associated to 1mg/kg of bupivacaine 0,5% without vasoconstrictor. Patient was held during the whole surgical procedure in inhalation anesthesia with isoflurane. Monitoring was made through electrocardiogram, pulse oxymetry with neonatal sensor, capnography, gas analyzer, invasive blood pressure through axillary artery access with 22G catheter, non-invasive arterial blood pressure measured with number 3 cuff and urinary debit. The patient was catheterized with number 4 urethral catheter and kept urinary debit of 30 ml transsurgical (equivalent to 1ml/kg/h). As post-surgical analgesia was administered 0,5mg/kg of dexamethasone and 2mg/kg of tramal. Patient kept its stable parameters during whole surgical procedure. Association of general inhalation anesthesia and regional blockages decreases isofluorane's CAM, which was measured with gas analyzer, and increases haemodynamical stability, granting an efficient preemptive analgesia.