Osteoarthritis

Clinical Features

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

• Calcium pyrophosphate crystal deposition disease
• Rheumatoid Arthritis
• Infectious monoarticular disease

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

References

Uptodate