If you are suffering from a known knee meniscus tear get out your MRI report…
If you have a meniscus tear the radiologist probably used phases or words like located in the “White Zone” and/or “Red Zone” meniscus tears. The “Red Zone” refers to the outer edges of the meniscus and has a fair amount of blood vessel in it. Areas that have a good blood supply typically heal better than those areas without good blood flow. If the radiologist describes your tear as being in the “White Zone” that refers to the center of the meniscus which has a poor network of blood flow. White zone tears are often recommended to have surgery.
The red zone (good blood flow) is known to contain regenerative cells, (cells that stimulate stem cell activity) and those of us using Shockwave Therapies (Zimmer EnPuls, EPAT, Acoustic Wave Therapy, Gaines Wave), hypothesize that shockwave treatments to the knee can help stimulate migration of the regenerative cells in the red zone to the site of meniscal injury in the white zone. Shock wave practitioners know the meniscus is capable of healing tear defects that occur in the white zone (the area without circulation).
Shockwave Therapies (Zimmer EnPuls, EPAT, Storz, Acoustic Wave Therapy, Miracle Wave, Gaines Wave) is a non-invasive alternative to shots and surgical treatment. Shockwave therapy may act as a spark to mobilize the body’s own stem cells to facilitate healing.
Findings in the Journal of Orthopaedic Research demonstrate that articular cartilage and injuries to the meniscus mobilize an intrinsic progenitor cell population with strong reparative potential, even into the white zone area (2).
1 Matar HE, Dala-Ali B, Atkinson HD. Meniscal regeneration: a cause of persisting pain following total knee arthroplasty. Case reports in medicine. 2011;2011.
2 Seol D, Zhou C, Brouillette MJ, Song I, Yu Y, Choe HH, Lehman AD, Jang KW, Fredericks DC, Laughlin BJ, Martin JA. Characteristics of meniscus progenitor cells migrated from injured meniscus. Journal of Orthopaedic Research. 2016 Nov 1.