Natural Healing of a Complete ACL Tear in Children – Case 24


ACL Online Therapy for natural healing

ACL tears heal without surgery

Patient information:

8 years old, Male, Japanese
On Nov.30, 2021, he injured his left knee by his own movement during playing soccer. On the same day, he was taken to the hospital and scanned through the x-ray. On Dec.11, 2021, he was taken through the MRI scanning, and the diagnosis was:

ACL Tear
Suspected Avulsion Fracture of tibial spine

His doctor said that he was too young to have the ACL reconstruction as there is a high risk of interfering the bone growth. On Jan.18, he and his family visited Jun Matsumoto and started the Evo-Devo EX. for natural healing of the ACL tear. The Lackman’s test was positive. He continued the Evo-Devo EX. through the face-to-face and online sessions. The next MRI was taken on Mar.30.

Even though the MRI pictures don’t show the clear continuity of the ACL, the Lackman’s test was negative at that time. After continuing the Evo-Devo EX. furthermore, he took the third MRI on Aug.17.

The MRI indicates:

Even though the T1 pictures don’t show the clear appearance of the natural healing, the T2 picture(the first one pf 08/17) shows the continuity of the ACL.

Future prospects and considerations:

Due to the poor resolution of the 1.5T MRI, it is difficult to have the exact diagnosis from these MRI. However, from the results of MRI and Lachman’s test, it can be inferred that the ACL healed spontaneously. Around 10 months from the injury, he already recovered the full range of motion of the knee, and started attending the physical education class at school. After one year from the injury, he plans to return to playing soccer.


Tsuchida S et al. Knee ligament injuries in a seven year old child. The Journal of Kansai Arthroscopy and Knee Scociety.

Spontaneous Healing of a Complete ACL Tear in children -case 15


ACL Online Therapy for natural healing

ACL tears heal without surgery

Patient information:

12 years old, male, Indian
On September 20th, 2021, during leg curl strength test due to carelessness of the doctor, his right knee got injured. Mri report indicates:

complete tear of the proximal segment bundle of the acl. Grade 3 sprain is also seen involving proximal segment and femoral attachment with increased signal. Tbl attachments /pcl are intact. Intact collaterals, posteromedial and posterolateral corners, menisci.

On October 22nd,2021, he started the online therapy for the natural healing of the ACL tear with Jun Matsumoto. He continued doing the Evo-Devo Exercises for four months, and he took the next MRIs on March 2nd,2022.

The MRI report indicates:

Proximal segment of the anterior cruciate ligament appears vertically oriented
flush with the medial aspect of the lateral femoral condyle and shows iso to
slightly hyperintense signal on both T1 and T2-weighted images. Intact tibial
attachments of both anteromedial and posterolateral bundles.

Although some tissues of the torn ACL are growing intact to the medial aspect of the lateral femoral condyle, the proximal femoral attachment is intact. Spontaneous healing of the torn ACL is occuring on the new MRI, and Jun Matsumoto permitted him to start doing more intense exercises so that he could retrun to playing the tennis.

He is the youngest patient who spontaneously healed from the ACL tear by Evo-Devo Exercises. In most cases, the surgeries for patients in chilhood are avoided because of the risk of imparing their bone growth. There has not been any appropriate medication for juvenile patients with ACL tears. The Evo-Devo Exercises can be the hope for the patients in childhood, and more successful cases can be accumulated and studied.


Ihara H, Miwa M, Deya K, Torisu K. MRI of anterior cruciate ligament healing. J Comput Assist Tomogr. 1996 Mar-Apr;20(2):317-21. doi
Pitsillides A, Stasinopoulos D, Giannakou K. Healing potential of the anterior cruciate ligament in terms of fiber continuity after a complete rupture: A systematic review. J Bodyw Mov Ther. 2021 Oct;28:246-254. doi