Osgood-Schlatter disorder
Clinical history
- Most frequent cause of knee pain in children aged 10 to 15 years.
- seen in active adolescents, especially those who jump and kick.
- It is bilateral in 25-50% of patients
- age of onset
- boys 10-15 years
- females girls 8-12 years
- Self-limiting but does not resolve until growth has halted
- Risk factors – jumpers (basketball, volleyball) or sprinters
Symptoms
- pain on anterior aspect of knee
- exacerbated by kneeling
Physical exam
- inspection
- enlarged tibial tubercle
- tenderness over tibial tubercle
- provocative test [ pain on resisted knee extension
Investigations
- Xray to rule out serious pathology such as:
- neoplasm
- acute tibial apophyseal fracture
- infection
GP management
- Reassurance parents that this is a self-limiting condition and symptoms will resolve with skeletal maturity (i.e. when the bones finish growing).
- symptoms typically last from a few months up to 24 months.
- In some cases, symptoms can persist longer, especially if the patient remains physically active without adequate treatment
- Activity Modification:
- Reducing activities that exacerbate symptoms, such as jumping or running, is often recommended.
- Physical Therapy:
- Strengthening and stretching exercises, particularly for the quadriceps and hamstring muscles, can help alleviate symptoms.
- Cold Therapy:
- Applying ice to the affected area can help reduce pain and swelling.
- Knee Straps or Braces:
- These can provide support to the area and reduce strain on the tibial tuberosity.
- Rest:
- Adequate rest is crucial, especially during periods of rapid growth or intense sports seasons.
- Cast immobilization x 6 weeks
- Casting is rarely required in the management of OSD.
- It is generally considered only in severe cases where significant pain and functional impairment persist despite exhaustive conservative management.
- Casting may also be considered if there is a large, painful ossicle that interferes with knee function, or if conservative measures have failed and surgery is not an option or is being deferred
Indications for specialist referral
- symptoms not resolving with conservative treatment
- home stretching program
- symptoms persisting longer than 18 months