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HomeSummaryReview of the conditionCharacteristics of torn meniscus cartilage in the knee Types Similar conditions Incidence and risk factors Diagnosis Medications Exercises Possible benefits of arthroscopic meniscectomy-minimally invasive arthroscopic surgery Considering surgeryPreparing for surgeryAbout the procedureRecovering from surgeryRehabilitationConclusion

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Arthroscopic Meniscectomy-Minimally Invasive Arthroscopic Surgery for Torn Meniscus Cartilage in the Knee.

Edited By: Carol C. Teitz, M.D.
Last updated Wednesday, January 12, 2005

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Arthroscopic Meniscectomy - Types of Meniscal Tears

Arthroscopic Meniscectomy - MRI showing a torn meniscus

Review of the condition

Characteristics of torn meniscus cartilage in the knee

A torn meniscus usually produces swelling and well-localized pain in the knee. The pain is made worse by twisting or squatting motions. Sometimes a fragment of torn meniscus can displace inside the knee in such a way as to "lock" the knee, allowing only a toggle of motion.

Types

A tear can occur in one or more directions in the meniscus. Traumatic tears are usually vertical whereas degenerative tears are usually horizontal. The shape that the meniscus and its torn portion assume has led to names like "bucket handle tear," "parrot beak tear," and others. Sometimes the meniscus deteriorates to the point where the tear is no longer a "clean" tear, but rather the meniscus is shredded and resembles crab meat.

Similar conditions

ometimes the symptoms from a torn meniscus can be confused with those from significant knee arthritis with loose articular (gliding) cartilage. Occasionally a chronically inflammed knee will produce similar findings. Usually these conditions can be distinguished from a torn meniscus by history and a good physical exam. Sometimes, though, they can only be distinguished by MRI or diagnostic arthroscopy.

Incidence and risk factors

Meniscal tears are common especially in people participating in sports. Traumatic tears usually occur as a result of a twisting or hyperflexion injury. Degenerative tears are more common in people over 40 and may occur without a specific injury. Smokers are at higher risk for degenerative tears.

Diagnosis

A torn meniscus is diagnosed on the basis of the patient's history and a thorough physical exam. An MRI is often used to confirm the diagnosis.

Medications

Medications can relieve pain and swelling temporarily, but will not actually produce healing of the torn meniscus.

Exercises

Quadriceps strengthening exercises can help prevent the muscle atrophy that is associated with a painful, swollen knee.

Possible benefits of arthroscopic meniscectomy-minimally invasive arthroscopic surgery

When the torn part of the meniscus is removed, any catching or locking should be gone immediately. Pain is usually minimal by 1 week after surgery. Full motion of the knee returns as the swelling disappears, usually within 4-6 weeks after the surgery.

Surgery for Torn Meniscus Cartilage in the Knee at the University of Washington

If you are interested in making an appointment to discuss this procedure, you can request an appointment using our online referrals website. To request a referral online, please click here. You can also call 206-543-1552 or 425-646-7777 to make an appointment.

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