II. Indication
- Evaluation for Knee Meniscus Injury
III. Efficacy
- Test Sensitivity: 26 to 58%
- Test Specificity: 59 to 94%
- Probability of injury if positive: 66% (Positive Likelihood Ratio 17.3)
- Probability of injury if negative: 5% (Negative Likelihood Ratio 0.5)
- References
IV. Technique
- Patient lies supine
- Knee flexed to 45 degrees
- Hip flexed to 45 degrees
- Examiner braces lower leg
- One hand holds ankle
- Other hand holds knee
- Medial meniscus assessment
- Assess for pain on palpation
- Palpate medial joint line with knee flexed
- Assess for "click" suggesting meniscus relocation
- Apply valgus stress to flexed knee
- Externally rotate tibia (toes point outward)
- Slowly extend the knee while still in valgus
- Images
- Assess for pain on palpation
- Lateral meniscus
- Repeat above with knee varus stress and tibia internal rotation
- Images
V. Interpretation: Positive Test suggests Meniscal Injury
- "Click" heard or palpated on above maneuvers
- Joint line tenderness on palpation