Knee Injury Acute History

Aka: Knee Injury Acute History, Knee Injury

1. See Also
   1. Knee Examination
   2. Acute Knee Pain
2. History: Mechanism of injury
   1. Type of activity
   2. Type of trauma (Contact?)
   3. Playing surface (Concrete?)
3. History: Direction of injury force
   1. Hyperextension Injury
      1. Anterior Cruciate Ligament Tear
   2. Direct blow to lateral side of knee (Valgus Stress)
      1. Medial Collateral Ligament Injury
   3. Direct blow to medial side of knee (Varus Stress)
      1. Lateral Collateral Ligament Injury
   4. Direct blow to anterior knee (e.g. knee hits dashboard)
      1. Posterior Cruciate Ligament injury
   5. Twisting Injury
      1. Anterior Cruciate Ligament Tear
      2. Meniscus Injury
      3. Patella subluxation or Patella dislocation
   6. Quick stop or sharp cut
      1. Anterior Cruciate Ligament Tear
4. History: Concurrent sensations
   1. "Snap" or "pop" at time of injury
      1. Anterior Cruciate Ligament Tear
   2. Locking, clicking or catching sensation
      1. Meniscus Injury
      2. Knee Joint loose bodies
   3. Knee locks in flexed position
      1. Bucket-handle tear (anterior to MCL)
   4. Giving-way or buckling sensation
      1. Anterior Cruciate Ligament Tear
      2. Meniscus Injury
      3. Patella subluxation
      4. Knee Joint loose bodies
5. History: Immediate knee swelling and difficult walking?
   1. Anterior Cruciate Ligament Tear
   2. Acute Patella dislocation
   3. Osteochondral Fracture (tibial plateau Fracture)
6. History: Athlete continued participating in activity after Injury
   1. Meniscus Injury
   2. Patella subluxation
   3. Mild collateral ligament injury
7. History: Morning stiffness lasts >30 minutes (esp. polyarticular)
   1. Age <50 years
      1. Rheumatoid Arthritis
      2. Reactive arthropathy
      3. Systemic Lupus Erythematosus
   2. Age >50 years
      1. Knee Osteoarthritis
8. History: Other relevant history
   1. See Acute Knee Pain
   2. Knee Pain history
      1. Knee Pain location ("point with one finger")
      2. Knee Pain duration
   3. Knee Injury history
      1. History of prior Knee Injury
      2. History of change in recent activities
   4. Past medical history
      1. Prior knee injuries or surgeries
      2. Concurrent rheumatic conditions
         1. Acute Gouty Arthritis
         2. Pseudogout
         3. Rheumatoid Arthritis
         4. Knee Osteoarthritis