Pectus excavatum (funnel chest) is the most common chest wall deformity in childhood and adolescence with a prevalence in the literature ranging from 1 in 3400 to 1 in 1000. In addition to conservative therapy with a suction cup and physiotherapy to improve posture, fitness, and muscle strength, there are several different surgical techniques, many of which have been improved over time. In evaluating the Minimalized Erlangen Correction Method (MEK), the main purpose of this retrospective analysis is to present the results and to compare them with reports on the Minimally Invasive Repair of Pectus Excavatum (MIRPE) technique, especially regarding long-term patient satisfaction, and with other open surgical methods in terms of operative trauma, as well as flexibility in its application, risk of complications, and patient safety.