Oliver Bee RMTRegistered Massage Therapist

Massage therapy · Kitchener–WaterlooColles' Fracture

Elbow, Wrist & Hand

What It Is

A Colles’ fracture is a type of broken wrist. It is a break in the radius, which is the larger of the two forearm bones at the wrist. The bone breaks near its lower end, on the thumb side of the wrist, and the broken piece tilts backward toward the back of the wrist (AAOS, n.d.). It is one of the most common types of distal radius (lower radius) fracture, and these fractures are very common: in the US, about 1 in every 6 broken bones treated in the emergency room is a distal radius fracture (AAOS, n.d.).

Most of the time, the bone breaks as a result of falling onto an outstretched arm (AAOS, n.d.). People who play contact sports, inline skaters, cyclists and skiers can all be at risk. If you have thinning of the bones (osteoporosis), even a minor fall can cause this fracture (AAOS, n.d.). Anyone can get this type of fracture if the force is great enough.

A wrist fracture can also be caused by a high-impact road traffic accident (AAOS, n.d.).

But how do you know if you have a Colles’ fracture? A fracture should be ruled out if you have injured your wrist, for example by falling on an outstretched arm. A broken wrist usually causes sudden pain, swelling and bruising, and it may be difficult to move. The wrist may look bent or out of place, or feel numb (NHS, 2026; AAOS, n.d.). It can be hard to tell whether a wrist is broken or badly sprained, so you will probably need an X-ray (NHS, 2026). Get medical advice as soon as possible if you think you have broken your wrist (NHS, 2026).

Call 911 or go to the emergency room at your nearest hospital if, after a wrist injury

  • Your fingers are numb, tingling or pale
  • Your wrist looks badly bent, out of place or at an odd angle
  • A bone is sticking out of the skin, or you have a cut that is bleeding heavily
  • You have severe pain that does not get better or gets worse, or severe pain when someone gently straightens your fingers
  • You have new weakness or trouble bending your thumb or index finger

(NHS, 2026; AAOS, n.d.)

Colles’ Fracture Anatomy

The radius is on the thumb side of the forearm and, near the wrist, it is the larger of the two forearm bones (AAOS, n.d.). The end that is located near the wrist is called the distal end. A distal radius fracture is a break in this part of the radius, close to the wrist.

Complications of Colles’ Fracture

  • Carpal tunnel syndrome, causing numbness and tingling in the fingertips, can develop when a wrist fracture narrows the path for the nerve and tendons in front of the bone (AAOS, n.d.; Wadsten et al., 2017).
  • Complex regional pain syndrome (CRPS), previously called Sudeck’s atrophy or reflex sympathetic dystrophy. It causes severe, ongoing pain that does not get better and needs treatment, so tell your doctor if this happens (AAOS, n.d.; Świta et al., 2024).
  • Malunion (the broken parts of the bone healing in the wrong position) (Wadsten et al., 2017).
  • Rupture of the extensor pollicis longus tendon, causing a dropped thumb (Wadsten et al., 2017).
  • Nerve damage, including to the median nerve, causing weakness of movement in the fingers and thumb (Świta et al., 2024).
  • Osteoarthritis of the wrist later on (Świta et al., 2024).
  • Change in contour on the back of the wrist.

Not a diagnosis — for more information, contact me or another trusted healthcare provider.

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