Different orthopedic surgeons may assess meniscal tears slightly differently. A minor tear may be one that repairs itself without surgery. The body has a limited ability to heal itself when the damage is not too severe. In the case of a meniscal tear, a partial tear that only involves part of the meniscus or a tear that doesn’t go through the full thickness of the meniscus may be labelled minor.
The surgeon can use an arthroscope to look at the full extent of the injury in order to advise the patient whether to repair or remove the torn cartilage. Location, depth, and extent of the injury are all evaluated and considered in the diagnostic process.
Meniscal tears and meniscectomy (removing a torn meniscus) are both risk factors for developing osteoarthritis of the knee. So care is taken to try and rehab first, repair second, and remove only if necessary.