Freiberg Disease or Freiberg's Infraction

Causes

Freiberg’s Infraction is a type of avascular necrosis seen commonly in the head of the second metatarsal. Avascular necrosis is when there is a reduced blood supply to this area often seen in conjunction with tiny micro fractures to the bone.

The exact mechanism of cause is unknown however it is thought that a combination of vascular compromise, genetic predisposition and altered biomechanics lead to Freiburg’s Infraction.

The condition often occurs during a growth spurt in puberty between the ages of 11-17 and is more commonly seen in females than males at a ratio of 5:1. Having a long 2nd metatarsal also increases your chance of suffering from this condition as more pressure is placed on the head of the 2nd metatarsal.

Symptoms

  • Constant localised pain usually at the head of the 2nd metatarsal

  • Increases with weight bearing activity

  • In dancers work on demi pointe and pointe will exacerbate symptoms

  • Localised swelling can sometimes be seen

  • Decrease in the range of motion available at the joint

If your podiatrist suspects Freiberg’s Infraction they will send you for x ray, ultrasound or MRI imaging, to confirm the diagnosis.

Treatment

  • Offloading the area, usually with a CAM boot or crutches

  • Immobilisation and or activity reduction for 4-6 weeks

  • Footwear modifications and padding

  • Orthotics

  • Surgery - should conservative treatment not produce success

With sufficient rest and offloading most patients are able to return to their previous activity levels without any further concern.

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