Osgood-Schlatter Disease

Question 1

What is OSD?

Answer 1

• self-limiting disorder of the knee found during adolescence

Question 2

What is the px of OSD?

Answer 2

1. Occurs during the adolescent growth spurt before the tibial tuberosity has finished ossification.
2. In active children - strength of the quadriceps exceed the ability of the tibial tuberosity to resist that force
3. contractions of the quadriceps muscles > multiple small avulsion fractures
4. avulsed fragments heal and grow
5. tibial tubercle enlarge

Question 3

Which age groups are affected by OSD?

Answer 3

• M: 12 and 15 years
• F: 8 and 12 years

Question 4

What is the presentation of OSD?

Answer 4

• gradual onset of pain and swelling below the knee
• relieved by rest, worsen on knee extension against resistance
• tenderness and swelling at the tibial tuberosity

Question 5

What are the differential diagnosis fo knee pain?

Answer 5

• bone tumour

Knee pain associated with systemic symptoms

• Septic arthritis
• Juvenile idiopathic arthritis

Knee pain associated with an abnormal examination of the hip

• perthe’s disease
• Slipped proximal femoral epiphysis

Knee pain associated with injury

• meniscal injuries
• collateral and cruciate ligament injuries
• tibial tuberosity fracture

Question 6

How would you mx OSD?

Answer 6

General

• Rest & Ice
• Physiotherapy
• self-limiting by 2-3 weeks

Pharmacological

• paracetamol or ibuprofen