Scaphoid Fracture: What It Is and How It Happens

By DR.AHMED RAOUF -

For practical guidance on bone and joint problems, check out my book  here 

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A scaphoid fracture is a break in one of the small bones of the wrist called the scaphoid, which lies on the thumb side of the wrist. This bone plays a crucial role in wrist stability and smooth hand movement, making its injury particularly important.

Scaphoid bone Fracture
Scaphoid  bone Fracture

How Does a Scaphoid Fracture Occur?

The most common cause is a fall onto an outstretched hand (FOOSH injury). This happens when a person instinctively uses their hand to break a fall, transmitting force directly to the wrist.

This injury is especially common in:

  • Athletes (e.g., cycling, skiing, football)

  • Young adults with active lifestyles

One important point:
Pain may not be severe immediately, which can lead to delayed diagnosis and treatment.

Why Is the Scaphoid Bone Special?

1. Difficult to Detect Early

  • The fracture may not appear on initial X-rays, especially within the first 10–14 days

  • Doctors often:

    • Apply a temporary splint

    • Repeat imaging after 2 weeks

    • Use MRI or CT scan for confirmation

2. Poor Blood Supply

  • The scaphoid has a limited blood supply, particularly in its proximal part

  • This increases the risk of:

    • Nonunion (failure of the bone to heal)

    • Avascular necrosis (bone tissue death due to lack of blood)

Common Symptoms

  • Pain in the wrist, especially on the thumb side

  • Swelling at the base of the thumb

  • Tenderness in the anatomical snuffbox

  • Pain with movement or gripping

  • Reduced wrist function

Diagnosis

Clinical Examination

  • Checking for tenderness and range of motion

  • Special focus on the anatomical snuffbox

    • anatomical snuffbox of scaphoid
    anatomical snuffbox of scaphoid

Imaging

  • X-rays (initial step)

  • MRI: Highly sensitive for early detection

  • CT scan: Useful for assessing fracture details and healing

Treatment Options

Treatment depends on fracture location and displacement:

scaphoid cast
scaphoid cast
1. Non-Surgical Treatment

Used for stable, non-displaced fractures:

  • Immobilization in a cast or splint

  • Duration: 6–12 weeks

  • Strict avoidance of wrist movement

2. Surgical Treatment

Indicated in:

  • Displaced fractures

  • Proximal fractures (higher risk of nonunion)

  • Failed conservative treatment

Procedure:

  • Fixation using screws or pins to stabilize the bone

    Herbert screw for scaphoid
    Herbert screw for scaphoid

Complications of Delayed Treatment

Delaying diagnosis or treatment can lead to:

  • Nonunion (failure to heal)

  • Avascular necrosis

  • Chronic wrist pain

  • Carpal osteoarthritis

  • Reduced grip strength and function

Prevention and Recovery

Prevention

  • Use protective gear during sports

  • Improve balance and coordination

  • Take precautions to prevent falls

Rehabilitation

After cast removal or surgery:

  • Physical therapy is essential

  • Focus on:

    • Restoring range of motion

    • Strengthening wrist muscles

Conclusion

A scaphoid fracture may appear minor at first but carries a significant risk of complications if not diagnosed and treated early. Because of its unique blood supply and healing challenges, prompt medical evaluation is essential after any wrist injury.

If you experience wrist pain after a fall—especially near the thumb—seek medical attention early to ensure proper diagnosis and recovery.

References

  1. American Academy of Orthopaedic Surgeons – Scaphoid Fractures (OrthoInfo)

  2. National Health Service – Wrist and scaphoid fractures

  3. Rockwood and Green's Fractures in Adults

  4. Campbell's Operative Orthopaedics

  5. Mayo Clinic – Broken wrist

.

About the Author: Dr. Ahmed Raouf

Dr. Ahmed Raouf is a highly experienced Orthopedic and Joint Surgery Consultant with over two decades of dedicated practice. His career includes significant tenures at prominent hospitals within the Egyptian Ministry of Health and Mousat Hospital in KSA. He specializes in Knee Osteoarthritis & Joint Replacement, Sports Injuries & Ligament Reconstruction, Fracture Management & Trauma Surgery, and Chronic Back & Shoulder Pain Solutions.


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