His main interests are knee surgery and sports medicine. Abdalla completed the M.S. and Ph.D. degrees in ACL reconstruction at the Federal University of São Paulo, in 1992 and 1986, respectively, and achieved full professorship in 2012. He is the Director of the Knee Institute at a private hospital (Heart Hospital). Abdalla’s outpatient clinic receives, on average, 170 patients a week; he performs surgery on about 600 patients a year.