Osteoarthritis

Background

Risk Factors

  • Age
  • Female versus male sex
  • Obesity
  • Lack of osteoporosis
  • Occupation
  • Previous injury
  • Muscle weakness
  • Genetic elements

Clinical Features

PIP (Bouchard's nodes) and DIP (Heberden's node) inflamation.
  • Commonly affected joints
    • Cervical and lumbar spine
    • First carpometacarpal joint
    • Proximal interphalangeal joint
    • Distal interphalangeal joint
    • Hip
    • Knee
    • Subtalar joint
    • First metatarsophalangeal joint
  • Uncommonly affected joints
    • Shoulder
    • Wrist
    • Elbow
    • Metacarpophalangeal joint

Differential Diagnosis

Monoarticular arthritis

Algorithm for Monoarticular arthralgia

Polyarthritis

Algorithm for Polyarticular arthralgia

Diagnosis

  • Greater than 50 years of age
  • Morning stiffness for less than 30 minutes
  • Crepitus on active motion of the knee
  • Bony tenderness
  • Bony enlargement
  • No palpable warmth

Management

Disposition

See Also

External Links

References