Background: ACL reconstruction Background: ACL reconstruction has evolved considerably in the last 30 years. This largely due to a better understanding of ACL anatomy. Objective: Assess functionality of the patient with a complete ACL lesion who underwent reconstruction with autologous graft of hamstrings without detachment in its distal portion using the Lysholm functional knee scale and Tegner. Materials and method: observational, descriptive case series study, evaluating the functionality of the knee in a patient with a complete ACL injury who underwent reconstruction arthroscopic ACL with autologous hamstring graft without detachment in its distal portion, will measure the functional knee scale of Lysholm and Tegner in the HGR2 of the IMSS, period between February 2019 to March 2020. Results: The mean age was 33.2 years. The male sex predominated (69.8%). 75.8% of the patients did not present comorbidities, 13.7 presented arterial hypertension and 10.3% diabetes mellitus. The most frequent mechanism of knee injury was caused by forced valgus (89.6%). 62% presented predominantly right laterality. 51.7% of the patients did not presented associated injury. The most used surgical technique was T4 in 89.6% of the patients. According to the Lyshom scale, 47.8% presented an excellent functional result and with respect to the Tegner's level of physical activity, 27.5% were located at level 4. Conclusions: according to the data obtained by our series of cases, it was shown that patients who undergo Anterior Cruciate Ligament reconstruction with autologous graft distal preservation technique of hamstrings (T4) under arthroscopy presents good to excellent results.
