Distal radius fractures are common. An olDistal radius Colles dinner fork deformityd name for them is a Colles Fracture, named after a doctor who described a typical deformity of the fracture in 1814.

Distal Radius

The radius is the forearm bone on the thumb side. It has an end surface that forms part of the wrist joint.


Injuries commonly happen by a simple fall onto the outstretched hand. There are many different variations, so the name Colles fracture does not cover all these differences. Most involve the end few centimetres of bone near the wrist joint.



Many fractures need only a cast. Some need monitoring with a sequence of X-rays to ensure the fracture remains the best shape for good long term function. Complications such as tendon irritation, stiffness, and carpal tunnel syndrome also need to be prevented and treated if needed.

SurgeryDistal radius plate

Some fractures need an operation to reduce, or put the back in correct place, the fracture. Commonly if a reduction is needed, the fracture will have a plate and screws inserted to reliably hold it in place while it heals. Good function will usually result from a fracture healing in a good position, and with higher demands the fracture will need to be as close to original shape.

Complex Fractures

At times there can be complex fracture involving the joint surface that need advanced techniques such as arthroscopic assistance to achieve a good result. Soft tissue injuries such as scapholunate ligament tears, and distal radioulnar joint instability need to be examined for.

Ulna Styloid

It is common to see a small pice of bone detached from the end of the ulna, the smaller little finger side forearm bone. This rarely needs any surgery or treatment. It often is healed with soft tissue rather than bone bridging the gap, but this rarely causes problems. The small piece of bone is not floating around.

Ulnar Sided Wrist Pain

Some pain on the little finger or ulnar side of the wrist is common for up to 6 months. This is due to a soft tissue injury associated with the fracture. There is a shock absorber tissue called the triangular fibrocartilage in this area. It is often torn at the same time as the distal radius fractures, but will almost always become pain free over time. Occasionally an arthroscopic debridement is needed if it does remain sore after 6 months.