Avulsion Fracture of the Ischial Tuberosity

What is an avulsion fracture of the ischial tuberosity?

The ischial tuberosity is the bony prominence in the buttock from which the hamstring muscle group (located at the back of the thigh) originates. It also forms the part of the pelvis we sit on. An avulsion fracture of the ischial tuberosity occurs when a small fragment of this bone is pulled away from the rest of the pelvis, typically as a result of forceful muscle contraction. This injury is most commonly seen in adolescent athletes. Physiotherapy plays an important role in recovery following an avulsion fracture of the ischial tuberosity.

How does an avulsion fracture of the ischial tuberosity happen?

The large muscle group at the back of the thigh, known as the hamstrings, attaches to the pelvis at the ischial tuberosity. Repeated strong contractions of the hamstring muscles can cause the portion of the ischial tuberosity where they attach to be pulled away from the rest of the bone.

What are the symptoms of an avulsion fracture of the ischial tuberosity?

An avulsion fracture of the ischial tuberosity causes a sudden, sharp pain deep in the lower part of the buttock. The pain is typically intense enough to stop you from continuing sport or physical activity. Other symptoms may include:

  • Swelling or bruising in the buttock or upper thigh
  • Tenderness at the site of the injury
  • Pain when sitting, walking, or stretching the hamstrings
  • Muscle weakness or stiffness in the back of the thigh
  • A feeling of “pulling” or tightness when trying to move the leg

What should I do if I have an avulsion fracture of my ischial tuberosity?

If you suspect that you have an avulsion fracture of the ischial tuberosity, you should begin immediate treatment. This includes rest and ice. Rest means stopping all sports and limiting weight-bearing through the affected leg. If walking is painful, you may need to use crutches. Apply ice to the injured area for 15–20 minutes every 1–2 hours, using a bag of frozen peas or crushed ice wrapped in a damp cloth. Continue this treatment until your initial physiotherapy assessment, which should ideally take place within 48 hours of the injury.

Physiotherapy treatment for an avulsion fracture of the ischial tuberosity

Physiotherapy plays a crucial role in the treatment of an avulsion fracture of the ischial tuberosity. Initially, your physiotherapist will assess which tissues have been damaged and determine the extent of the injury. They will also provide you with an estimated timeframe for recovery and develop an appropriate treatment plan tailored to your needs. Treatment may include:

  • Fracture Treatment
  • Hydrotherapy
  • Electrotherapy
  • Exercise Programmes

Could there be any long term effects from an avulsion fracture of the ischial tuberosity?

Avulsion fractures of the ischial tuberosity typically heal completely within several weeks and do not cause long-term effects when appropriately treated.

To arrange an appointment, please call +65 81535374 or visit acephysiosports.com.

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