Well, latest research shows that one may not need surgical intervention to achieve healing after all. The following paper (Filbay et al, 2023) showed excellent results with the Cross Bracing Protocol (CBP) in patients who tore their ACL . 72 out of 80 participants (90 percent) with a total tear of their ACL at baseline had MRI signs of ACL healing (a continuous ACL ) after only 3 months.
Of the 8 participants whose ACL 's did not heal, 6 had attached to the lateral wall ± PCL (post cruciate ligament), with MRI evidence after 3 months.
The subjects studied were between 10-58 years old who saw a sports doctor in private practice in Sydney, Australia and followed up from 2016-2021 with MRI confirming acute ACL rupture. They were all managed with the CBP.