Hook of hamate fracture

Hook of hamate fracture

Another type of wrist fracture is a fractured hook of hamate. This is a fracture of the hamate bone which is one of the small carpal bones on the little finger side of the wrist. It has a hook-shaped part which protrudes outwards and can under certain circumstances be fractured.

Symptoms

  • Symptoms of a fracture of the hook of hamate include wrist pain on the little finger side of the wrist.
  • The patient will have reduced grip strength.
  • There will be tenderness when touching the palm side of the wrist.

What is a Hook of hamate fracture?

A hook of hamate fracture is a specific break of the hamate bone in the wrist. The hamate is one of the seven carpal bones. The bony protrusion on the hamate bone is called the ‘hook of hamate’. It is this part of the hamate bone which is commonly fractured.

Bones of the hand and wrist

What causes a hook of hamate fracture?

A hook of hamate fracture in the wrist can occur from swinging a golf club, tennis racket or baseball bat, particularly if it suddenly hits an immovable object.

For example if you swing a golf club hard and it strikes the floor instead of the ball. The sudden force going through your wrist may cause a break of the hamate bone.

A stress fracture may also occur. This is caused by repeated trauma over time and may even go unnoticed. If it does, then it could possibly turn into an acute fracture.


Treatment

  • Treatment usually involves immobilization in a plaster cast for 4 weeks.
  • If the injury is noticed late, then it is likely not to heal. If this happens, the most popular option is to remove the fragment of bone completely. This is followed by immobilization in a paster cast for 3 weeks.

How long will it take to heal?

  • Return to sports specific training may take 6 weeks or more.
  • When the wrist comes out of the cast, mobility and strengthening exercises should be done to restore full movement.
  • Putty exercises and using hand exercise balls are excellent for achieving this.

Go to wrist strengthening exercises.

This article has been written with reference to the bibliography.