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Meniscus Anatomy Quiz

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Questions and Answers

Which meniscus is more mobile, the medial or the lateral?

Both menisci are equally mobile

Lateral meniscus (correct)

The text does not provide information about their mobility

Medial meniscus

What is the vascular supply like in the inner 1/3 of the meniscus?

Good

The inner 1/3 of the meniscus is avascular (correct)

The text does not provide information about the vascular supply in the inner 1/3

Poor

What is the function of the menisci in the knee joint?

To deepen the socket of the tibial plateau

To limit translation of the femur on the tibial plateau

To distribute load across the knee joint

All of the above (correct)

In acute knee injuries with an intact ACL, which meniscus is more likely to be injured?

Medial meniscus Signup and view all the answers

Which test can be used to check for effusion in the knee?

Ballottement test Signup and view all the answers

Which test is used to diagnose a meniscal tear?

Both C & D Signup and view all the answers

Is MRI superior to composite clinical examination for diagnosing meniscal tears?

No, composite clinical examination is superior Signup and view all the answers

Which treatment option is NOT recommended if the knee is locked and the fragment is not reduced?

Conservative treatment Signup and view all the answers

What does physical therapy for meniscal injuries focus on?

Closed chain exercise of quadriceps and hamstrings Signup and view all the answers

Which procedure is considered the best approach for total meniscectomy, partial meniscectomy, and meniscal repair?

Arthroscopy Signup and view all the answers

What is the criteria for performing meniscal repair or partial meniscectomy based on the distance from the rim?

Less or more than 3 mm Signup and view all the answers

What is the criteria for performing meniscal repair based on the mobility of the fragment?

Stable Signup and view all the answers

What is the criteria for performing partial meniscectomy based on the age of injury?

Old Signup and view all the answers

What is the criteria for performing meniscal repair based on the return to play?

Later Signup and view all the answers

What is the criteria for performing meniscal repair based on the age of the patient?

Younger Signup and view all the answers

Study Notes

Meniscus Movement and Vascular Supply

The lateral meniscus is more mobile than the medial meniscus.
The inner 1/3 of the meniscus has a poor vascular supply.

Functions of Menisci

The menisci act as shock absorbers and reduce the pressure on the articular cartilage.
They also help to distribute the weight evenly and increase the joint surface area.

Meniscal Injuries

In acute knee injuries with an intact ACL, the lateral meniscus is more likely to be injured.
The McMurray's test is used to diagnose a meniscal tear.
MRI is superior to composite clinical examination for diagnosing meniscal tears.

Knee Effusion and Treatment

The bulge test can be used to check for effusion in the knee.
If the knee is locked and the fragment is not reduced, open reduction is not recommended.
Physical therapy for meniscal injuries focuses on strengthening the surrounding muscles and improving range of motion.

Meniscal Repair and Partial Meniscectomy

The arthroscopic approach is considered the best for total meniscectomy, partial meniscectomy, and meniscal repair.
Meniscal repair or partial meniscectomy is performed if the tear is within 3-4 mm from the rim.
Mobile fragments are more suitable for meniscal repair.
Partial meniscectomy is performed if the injury is more than 3 months old.
Meniscal repair is recommended for patients under 30 years old who want to return to play quickly.

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Description

Test your knowledge on the structure and characteristics of the meniscus in this informative quiz. Learn about the differences between the medial and lateral meniscus, their mobility, vulnerability to tearing, composition, and vascular supply. Test your understanding of this important knee structure now!