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Triquetrum Fractures: The Hidden Wrist Injury You Need to Know About
Published: Feb 17, 2024
Triquetrum fractures, though often overlooked, are the second most common carpal bone injury. Understanding this condition is crucial for anyone who's experienced wrist trauma.
The Anatomy of the Triquetrum
The triquetrum is a small, pyramid-shaped bone located on the ulnar side of the wrist. It's connected to surrounding bones by numerous ligaments, making it an integral part of wrist stability. Think of it as a tiny cornerstone in the complex architecture of your wrist.
How Triquetrum Fractures Happen
These fractures typically occur from falls onto an outstretched hand. Imagine slipping on ice and instinctively putting your hand out to break your fall - that's a common scenario for a triquetrum fracture. There are two main types: avulsion fractures (where a small piece breaks off) and body fractures (a break through the main part of the bone).
Recognizing the Signs and Symptoms
If you've fractured your triquetrum, you'll likely experience pain and swelling on the ulnar (pinky) side of your wrist. The area may be tender to touch, especially about 1-2 cm below the ulnar styloid (the bony prominence on the outside of your wrist). Moving your wrist might worsen the pain.
Diagnosis and Treatment
Diagnosing a triquetrum fracture can be tricky. X-rays are the first step, but they often miss these fractures. CT scans or MRIs may be necessary for a definitive diagnosis. Treatment usually involves immobilization with a cast or splint for 3-6 weeks, allowing the bone to heal properly.
Frequently Asked Questions
Usually not, but it may be needed for severely displaced or complicated fractures.
Typically 4-6 weeks, but full strength may take several months to return.
While not always preventable, strengthening wrist muscles and using proper fall techniques can help.
Often yes, to regain full strength and mobility in your wrist.
Not initially, but most people can return to sports after proper healing and rehabilitation.
The Bottom Line
While triquetrum fractures can be painful and disruptive, with proper care and patience, most people recover fully and regain normal wrist function.
References
- van Onselen EB, et al. J Hand Surg Br 2003; 28:491.
- Urch EY, Lee SK. Clin Sports Med 2015; 34:51.
- Suh N, et al. J Hand Surg Am 2014; 39:785.
This article has been reviewed for accuracy by one of the licensed medical doctors working for Doctronic. Always discuss health information with your healthcare provider.
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