Vol. 3, Issue 1, Part A (2021)

The injury of the anterior cruciate ligament of the knee represents an entity of great importance, both for its frequency and for the absenteeism at work and sport it causes. In total fractures, the resulting residual instability alters normal biomechanics and predisposes to the development of degenerative changes. In partial ruptures, described more than 50 years ago, the current management is controversial, between suturing the extremities, physiotherapy and / or regenerative therapies such as intra-articular use of platelet growth factors, and we decided for the latter to apply it in the case that we present, in a male patient of 25 years, who suffered a partial break of right ACL when injured playing soccer. The application was made 72 hours after the lesion. MRI controls were performed before and after the intra-articular application of Growth Factors.