The Treatment of Cartilaginous Lesions and Concomitant Anterior Cruciate Ligament Reconstruction

Inclusion Criteria: 1. Male or female patients, 18 \< age \< 55; 2. Patients with complete ACL injury candidates for surgical reconstruction of the same; 3. Cartilaginous lesion of the femur-tibial compartment of grade III-IV ICRS ≤3 cm2 confirmed intra-operatively; 4. Patients without evidence of osteoarthritis 5. Patients' ability and consent to participate in clinical and radiological follow-up; 6. Signature of informed consent. Exclusion Criteria: 1. Patients incapable of understanding and of wanting; 2. State of immunodepression; 3. Patients with malignant neoplasms; 4. Patients suffering from rheumatic diseases; 5. Patients suffering from non-compensated diabetes; 6. Patients suffering from uncompensated thyroid metabolic disorders; 7. Patients abusing alcoholic beverages, drugs or drugs; 8. Patients with axial deviations\> 5 °; 9. Body Mass Index\> 35; 10. Patients treated with surgery at the same knee in the previous 12 months. 11. Cartilaginous lesions grade I-II according to the ICRS score. 12. Cartilage lesions with a diameter greater than 3 cm². 13. Non-suturable meniscal lesions requiring meniscectomy\> 50% and patients with previous meniscectomies\> 50% in the same compartment. 14. Need for further associated surgical procedures in addition to the reconstruction of ACL and possibly the nanofractures.