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A meniscal repair has a higher success rate given an adequate blood supply to the peripheral rim. [36] [failed verification] The interior of the meniscus is avascular, but the blood supply can penetrate up to about 6 millimetres (0.24 in). Therefore, meniscus tears that occur near the peripheral rim are able to heal after a meniscal repair. [1]
Meniscal repair: Preferred for young patients or those with tears in the vascular (red-red) zone, which has healing potential. Arthroscopic sutures are used to repair the torn meniscus. Partial meniscectomy : [ 7 ] If the tear is in a non-repairable location (white-white zone) or the meniscal tissue is extensively damaged, the displaced ...
The absent bowtie sign is a radiologic sign indicative of a meniscal tear in the knee joint. On sagittal magnetic resonance (MR) images, the body of the meniscus normally looks like a bow tie, with two distinct segments.
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Likewise, external rotation of the leg can be applied to test the posterior portion of the medial meniscus. [ 2 ] The McMurray test is named after Thomas Porter McMurray , [ 2 ] a British orthopedic surgeon from the late nineteenth and early twentieth century who was the first to describe this test.
Acute injury to the medial meniscus frequently accompanies an injury to the ACL (anterior cruciate ligament) or MCL (medial collateral ligament). A person occasionally injures the medial meniscus without harming the ligaments. Healing of the medial meniscus is generally not possible unless the patient is very young, usually <15 years old.
Articular cartilage has a very limited capacity for self repair. Small damage does not repair itself and can often get worse over time. As cartilage is aneural and avascular (lack of nerve and blood supply, respectively), shallow damage often does not trigger pain.
Meniscal cyst is a well-defined cystic lesion located along the peripheral margin of the meniscus, a part of the knee, nearly always associated with horizontal meniscal tears. Signs and symptoms [ edit ]