Fig. 4

MRI scans from the two groups: a 30-year-old male and b 19-year-old male who underwent remnant-preserved ACLR; and c 21-year-old male and d 22-year-old male who underwent conventional ACLR. MRI scans were taken at a mean period of 12 months. Yellow arrows indicate reconstructed ACL grafts. ACLR anterior cruciate ligament reconstruction, MRI magnetic resonance imaging