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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 ...
A tear of a meniscus is a rupturing of one or more of the fibrocartilage strips in the knee called menisci. When doctors and patients refer to "torn cartilage" in the knee, they actually may be referring to an injury to a meniscus at the top of one of the tibiae. Menisci can be torn during innocuous activities such as walking or squatting.
Gadolinium(III) containing MRI contrast agents (often termed simply "gado" or "gad") are the most commonly used for enhancement of vessels in MR angiography or for brain tumor enhancement associated with the degradation of the blood–brain barrier (BBB). [3] [4] Over 450 million doses have been administered worldwide from 1988 to 2017. [5]
The effect of low doses of radiation on carcinogenesis also are disputed. [62] Although MRI is associated with biological effects, these have not been proven to cause measurable harm. [29] Iodinated contrast medium is routinely used in CT and the main adverse events are anaphylactoid reactions and nephrotoxicity. [63]
[2] [3] Relatively common side effects include vomiting, diarrhea, and skin redness. [4] Other side effects include itchiness, kidney problems, low blood pressure, and allergic reactions. [1] It is not recommended in people who have an iodine allergy. [1] Diatrizoate is an iodinated ionic radiocontrast agent with high osmolality. [2]
Healing of the medial meniscus is generally not possible unless the patient is very young, usually <15 years old. Damage to the outer third of the meniscus has the best healing potential because of the blood supply, but the inner two thirds of the medial meniscus has a limited blood supply and thus limited healing ability.
Iodinated contrast contains iodine.It is the main type of radiocontrast used for intravenous administration.Iodine has a particular advantage as a contrast agent for radiography because its innermost electron ("k-shell") binding energy is 33.2 keV, similar to the average energy of x-rays used in diagnostic radiography.
Many of the side effects are due to the hyperosmolar solution being injected. i.e. they deliver more iodine atoms per molecule. The more iodine, the more "dense" the X-ray effect. [citation needed] Organic iodine molecules used for contrast include iohexol, iodixanol, and ioversol. Iodine-based contrast media used nowadays are water-soluble.