Knee pain

DDx

  • Patellofemoral syndrome
  • Iliotibial band syndrome
  • Patellar tendinitis
  • Anserine bursitis
  • Meniscus tear (medial > lateral)
  • Medial or lateral collateral ligament strain or tear
  • Cruciate ligament tear (anterior > posterior)
  • Prepatellar bursitis
  • Baker’s (popliteal) cyst
  • Septic joint, eg, gonococcal
  • Arthritis, eg, osteoarthritis, rheumatoid arthritis, gout, pseudogout, septic arthritis, reactive arthritis (Reiter’s syndrome)
  • Medial plica syndrome
  • Osgood-Schlatter disease
  • Osteochondritis dissecans
  • Neuropathic arthropathy (Charcot joint)
  • Tumor, eg, osteosarcoma
  • Referred pain from hip, eg, avascular necrosis
  • Referred pain from back, eg, sciatica
  • Fracture

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