Meniscal Tears Examination & Tests

Courtesy: Prof Nabil Ebraheim, University of Toledo, Ohio, USA

Meniscal Tear — Clinical Examination Tests

Overview

The meniscus acts as an important cushion between the femoral condyle and tibial plateau.

A typical meniscal injury history includes:

• Twisting injury
• Medial or lateral joint-line pain
• Swelling/effusion
• Mechanical symptoms:
  • Clicking
  • Locking
  • Catching

Range of motion is usually normal, except in some mechanically blocked tears.

1. Most Important Clinical Finding

The most important examination finding emphasized in is:

Joint-line tenderness

Tenderness may be along the:

• Medial joint line
• Lateral joint line

and should correspond to the symptomatic side.

However, joint-line pain can occasionally arise from other causes such as:

• Bursitis
• Arthritis
• Ligament injury

So it is suggestive, not absolutely diagnostic.

2. Principle of Provocative Meniscal Tests

The different meniscal tests use the same basic principle:

Trap the meniscus between the femur and tibia while applying rotation/twisting.

The tests differ mainly by patient position:

• Supine
• Prone
• Standing

A provocative test is suggestive of meniscal tear when it produces:

Pain with a click or pop

3. McMurray Test

identifies the McMurray test as the most popular provocative test for meniscal pathology.

Its principle is:

Knee movement + tibiofemoral rotation – compression/trapping of meniscus – pain/click if torn.

The detailed medial-versus-lateral maneuver is not provided in the supplied transcript, so it should not be added here from outside knowledge.

4. Apley Compression Test

“ably compression test” refers to the Apley compression test.

Position

• Patient lies prone
• Knee flexed to 90°

Technique

• Apply axial compression
• Rotate the tibia internally and externally
• Palpate/monitor the joint line

Positive test

Joint-line pain with a click or pop

suggests meniscal pathology.

Why is it called a compression test?

Because the tibia is compressed toward the femur, loading the meniscus.

5. Apley Compression vs Distraction

This distinction is very important.

Maneuver	Interpretation in transcript
Rotation + compression	Meniscal injury
Rotation + distraction	Ligamentous injury

Thus:

Pain with compression – think meniscus

Pain with distraction – think ligament

6. Thessaly Test

The final standing test described is the Thessaly test.

Position

• Patient stands on the affected leg
• Knee flexed approximately 20°
• Examiner holds the patient’s hands for support

Technique

The patient rotates/twists the knee:

• Internal rotation
• External rotation

about three times.

Positive test

Pain with clicking or popping

suggests a meniscal tear.

7. Comparison of Meniscal Provocative Tests

Test	Patient position	Basic maneuver	Positive finding
McMurray	Supine	Knee motion + rotation	Pain/click/pop
Apley compression	Prone	Compression + tibial rotation	Pain/click/pop
Thessaly	Standing	Weight-bearing rotation at ~20° flexion	Pain/click/pop

8. Why These Tests Work

All three try to reproduce the same mechanical event:

Rotation/twisting – meniscus trapped between femoral condyle and tibial plateau – torn segment becomes painful or produces click/pop.

The main difference is the way the knee is loaded.

9. Mechanical Symptoms

Symptoms supporting a meniscal tear include:

• Clicking
• Catching
• Locking

These are especially important when associated with:

• Twisting injury
• Joint-line pain
• Joint-line tenderness

10. Bucket-Handle Tear

A bucket-handle tear can mechanically block the knee.

Important clinical clue:

Loss of full extension / locked knee

The speaker recommends obtaining MRI early when a bucket-handle tear is suspected because of the mechanical block.

11. Role of MRI

emphasizes that provocative meniscal tests are not fully specific.

Therefore:

MRI is used to confirm a suspected meniscal tear.

MRI becomes particularly important when there are:

• Mechanical symptoms
• Persistent symptoms
• Suspected bucket-handle tear
• Loss of extension

High-Yield Diagnostic Pattern

Typical meniscal tear

Twisting injury
Medial/lateral joint-line pain
Effusion ± clicking/catching/locking
Joint-line tenderness
Positive provocative test
MRI confirmation

Key Take-Home Points

• Joint-line tenderness is the most important clinical finding emphasized in the transcript.
• Meniscal provocative tests all attempt to trap the meniscus between femur and tibia with rotation.
• McMurray is described as the most popular test.
• Apley compression: compression + rotation – meniscal pain.
• Apley distraction: pain suggests ligamentous pathology rather than meniscal pathology.
• Thessaly: standing on affected limb with knee around 20° flexion, then twisting.
• A positive provocative test typically produces pain with click/pop.
• These tests are not completely specific.
• MRI is used to confirm meniscal tear.
• Bucket-handle tear may block full extension, prompting early MRI.

Exam Pearls

Meniscus – joint-line tenderness

McMurray – supine

Apley – prone

Thessaly – standing

Compression hurts – meniscus

Distraction hurts – ligament

Locked knee + loss of extension – think bucket-handle tear