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Home/Patient Education/Fractures/Adult Fractures/Bennett Fracture of Thumb Metacarpal Base
Fracture Care · Adult · Wrist and Hand

Bennett Fracture of Thumb Metacarpal Base

The deforming pull of the APL makes displaced Bennett fractures prone to redisplacement.

This page explains how a bennett fracture of thumb metacarpal base is commonly managed, in plain language, based on Dr. Kee's typical approach to this injury.

Body Region
Wrist and Hand
Age Group
Adult
Treatment
Variable
Expected Bone Healing
Typically 6 weeks or longer.

Every fracture is different. Treatment varies based on the exact fracture pattern, displacement, age, whether surgery is needed, bone quality, other injuries, and how an individual heals. This page is general education, not your personal treatment plan — always follow the specific instructions given to you by Dr. Kee's office.

Table of Contents
What Is This Injury?

The deforming pull of the APL makes displaced Bennett fractures prone to redisplacement.

Bone Doc Tip

A reduced Bennett fracture must also be stable.

How Is It Treated?

This fracture may be treated with or without surgery, depending on the specific fracture pattern, how much the bone has shifted (displacement), and your individual situation. Your surgeon will determine the best approach for you.

Brace, Cast, Splint, or Sling

Thumb-spica splint after reduction; definitive treatment depends on displacement and joint stability.

Walking or Using the Injured Limb

No gripping, pinching, or thumb loading.

For a full explanation of what these weight-bearing terms mean, see our Weight-Bearing Guide.

When Does Motion Begin?

Maintain motion of uninvolved digits; thumb motion per definitive plan.

Physical Therapy

Hand therapy after stable fixation or immobilization.

Follow-Up and Imaging

Prompt hand-surgery review, generally within several days.

Recovery Timeline
Short AnswerRecovery generally moves through protection, motion, weight-bearing, strengthening, and return to activity — at a pace your surgeon sets for your specific fracture.

Every fracture moves through the same general phases, though the exact timing is different for every patient:

1
Injury or Surgery
The fracture occurs, or is surgically stabilized if your surgeon recommends fixation.
2
Early Protection
Thumb-spica splint after reduction; definitive treatment depends on displacement and joint stability.
3
Begin Motion
Maintain motion of uninvolved digits; thumb motion per definitive plan.
4
Progress Use / Weight Bearing
No gripping, pinching, or thumb loading.
5
Strengthening
Physical therapy often helps rebuild strength once your surgeon confirms it's safe to begin.
6
Return to Activity
Return to work, school, driving, and sports is guided by your surgeon as healing progresses.
Return to Activity

Work or School: Modified duty until stable union and functional pinch return.

Sports or High-Risk Activity: Usually several months for contact or high-demand sport.

Watch For — Specific to This Injury

Irreducible or unstable reduction, articular displacement, open injury, or neurovascular compromise.

General Warning Signs — When to Call

  • Increasing pain that isn't controlled by your prescribed plan
  • New numbness or weakness
  • Fingers or toes that become pale, blue, cold, or very swollen
  • A cast or splint that becomes excessively tight, wet, damaged, or foul-smelling
  • New drainage, spreading redness, fever, or wound concerns

See our full When to Call page for the difference between routine office contact and emergency evaluation.

Chest pain, shortness of breath, or symptoms of a possible blood clot, or any life-threatening emergency — call 911 or go to the nearest emergency department.

Frequently Asked Questions

How long will I be in a cast, splint, or brace for a bennett fracture?

Thumb-spica splint after reduction; definitive treatment depends on displacement and joint stability.

When can I return to work, school, driving, or sports after a bennett fracture?

Your surgeon will guide when it's safe to return to these activities based on how your specific fracture is healing. Follow the instructions given specifically to you.

Will I need another surgery to remove hardware?

Pins or hardware per fixation method.

Still Have Questions?

Every fracture heals differently. If you have questions about your treatment plan, reach out to Dr. Kee's office.

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