Colles' fracture is a common type of wrist fracture that occurs when the radius bone in the forearm breaks near the wrist. It is often the result of a fall onto an outstretched hand. This type of fracture is named after Abraham Colles, an Irish surgeon who first described it in the early 19th century. The injury typically results in a characteristic "dinner fork" or "bayonet" deformity of the wrist.
Presentation
Patients with a Colles' fracture usually present with pain, swelling, and bruising around the wrist. The wrist may appear deformed, with a noticeable bump on the back of the hand. Movement of the wrist and hand can be painful and limited. In some cases, there may be numbness or tingling in the fingers due to nerve compression.
Workup
Diagnosing a Colles' fracture typically involves a physical examination and imaging studies. During the examination, a doctor will assess the wrist for deformity, swelling, and tenderness. X-rays are the primary imaging tool used to confirm the diagnosis, as they can clearly show the fracture and its alignment. In some cases, a CT scan may be used for a more detailed view.
Treatment
Treatment for a Colles' fracture depends on the severity of the fracture. For minor fractures, immobilization with a cast or splint may be sufficient. More severe fractures may require reduction, where the bones are realigned, followed by casting. In some cases, surgery may be necessary to fix the bones with pins, plates, or screws. Pain management and physical therapy are also important components of treatment to restore function and strength.
Prognosis
The prognosis for a Colles' fracture is generally good, especially with appropriate treatment. Most patients regain full function of their wrist and hand, although some may experience stiffness or reduced range of motion. Complications are rare but can include malunion (improper healing of the fracture), nerve damage, or arthritis in the wrist.
Etiology
Colles' fractures are most commonly caused by a fall onto an outstretched hand, which forces the wrist into an extended position. This type of injury is more likely to occur in individuals with weakened bones, such as those with osteoporosis. Other risk factors include advanced age, female gender, and a history of previous fractures.
Epidemiology
Colles' fractures are one of the most common types of fractures, particularly among older adults. They account for a significant proportion of all fractures seen in emergency departments. Women are more frequently affected than men, largely due to the higher prevalence of osteoporosis in postmenopausal women.
Pathophysiology
The pathophysiology of a Colles' fracture involves the breaking of the distal radius bone, often with dorsal displacement (backward movement) of the fracture fragment. This displacement leads to the characteristic deformity. The fracture can also involve the ulna, the other bone in the forearm, and may affect the surrounding soft tissues, including ligaments and nerves.
Prevention
Preventing Colles' fractures involves reducing the risk of falls and maintaining bone health. Strategies include regular exercise to improve balance and strength, using assistive devices if needed, and ensuring a safe home environment. Adequate intake of calcium and vitamin D, along with medications for those at high risk, can help maintain bone density and reduce fracture risk.
Summary
Colles' fracture is a common wrist injury resulting from a fall onto an outstretched hand. It is characterized by pain, swelling, and a distinctive wrist deformity. Diagnosis is confirmed with X-rays, and treatment may involve immobilization, reduction, or surgery. With proper care, most patients recover well, although some may experience lingering stiffness or discomfort.
Patient Information
If you suspect a Colles' fracture, it is important to seek medical attention promptly. Immobilize the wrist and apply ice to reduce swelling. Avoid moving the wrist until it has been evaluated by a healthcare professional. Treatment will depend on the severity of the fracture and may include a cast, splint, or surgery. Follow your doctor's instructions for recovery, including any recommended exercises or physical therapy, to ensure the best possible outcome.