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Metacarpal Base Fractures: What You Need to Know!
Published: Feb 22, 2024
Metacarpal base fractures are common injuries of the hand. Learn what causes them, how to spot them, and what to do about them.
Understanding Metacarpal Base Fractures
Metacarpal base fractures occur at the base of the bones in your hand and are often caused by direct or indirect trauma. These injuries make up about 30 to 40 percent of all hand fractures. Stability is provided by various ligaments, but fractures near the fourth and fifth fingers are less stable due to joint mobility.
Spotting the Symptoms
If you have a fractured metacarpal base, you might notice swelling, tenderness, and pain, especially when moving your wrist. It's crucial to check for any rotational malalignment, as even slight misalignment can lead to problems down the line. Ensuring the ulnar nerve is functioning properly is also important as it affects finger movement.
How Are They Diagnosed?
Doctors use diagnostic imaging, like X-rays, to confirm metacarpal base fractures. If standard X-rays are unclear, additional views or a CT scan may be needed. Sometimes, ultrasound can help in diagnosing, but it might not provide detailed information about the fracture.
When Surgery is Needed
Not all fractures need surgery, but some do. If there's nerve injury, dislocation, or severe misalignment, surgical consultation is vital. Fractures at the base of the fifth metacarpal often require surgery for proper healing.
Frequently Asked Questions
These fractures are often the result of direct trauma or a twisting force applied to the hand.
They are usually diagnosed using X-rays or sometimes CT scans.
No, only certain cases with complications require surgical intervention.
Symptoms include swelling, tenderness, and wrist pain.
Yes, they can affect movement, especially if the ulnar nerve is involved.
Key Takeaways
Metacarpal base fractures are common and require proper diagnosis and treatment to prevent long-term issues.
References
- Ashkenaze DM, Ruby LK. Metacarpal fractures and dislocations. Orthop Clin North Am 1992; 23:19.
- Kozaci N, Ay MO, Akcimen M, et al. The effectiveness of bedside point-of-care ultrasonography in the diagnosis and management of metacarpal fractures. Am J Emerg Med 2015; 33:1468.
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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