Osgood-Schlatter's disease Flashcards
(6 cards)
What is OSD caused by?
OSD is caused by inflammation at the tibial tuberosity where the patella ligament inserts. It is a common cause of anterior knee pain in adolescents, usually unilateral but can be bilateral.
What age group does OSD affect?
OSD occurs in ages 10-15 years and is more common in males.
What is the pathophysiology of OSD?
- patella tendon inserts into the tibial tuberosity
- the tibial tuberosity is at the epiphyseal plate (this area is still developing and contains a growth/epiphyseal plate)
- stress from running, jumping and other movements at the same time as growth in the epiphyseal plate ⇒ inflammation on the tibial epiphyseal plate
- there are multiple small avulsion fractures, where the patella ligament pulls away tiny pieces of the bone
- this leads to growth of the tibial tuberosity → causing a visible lump below the knee
- initially this bump is tender due to the inflammation, but as the bone heals and the inflammation settles it becomes hard and non-tender
What is the presentation of OSD?
The presentation includes gradual onset of symptoms, a visible or palpable hard and tender lump at the tibial tuberosity, pain in the anterior aspect of the knee, and pain exacerbated by physical activity, kneeling, and extension of the knee.
What is the management for OSD?
Management focuses on reducing pain and inflammation, which includes a **reduction in physical activity, ice, and NSAIDsUU (ibuprofen) for symptomatic relief. Once symptoms settle, stretching and physiotherapy can be used to strengthen the joint and improve function.
What is the prognosis and complications of OSD?
Symptoms will fully resolve over time, but the patient is usually left with a hard boney lump on their knee. A rare complication is a full avulsion fracture, where the tibial tuberosity is separated from the rest of the tibia, which usually requires surgical intervention.
