Mallet Finger

What is Mallet Finger?

Mallet Finger is an injury to the extensor tendon at the distal interphalangeal joint (DIP), resulting in the inability to fully extend the finger.

• Typically occurs due to forced flexion of the finger
• Common in sports and trauma cases

Overview of the Condition

The injury results in a drooping fingertip that can impair hand function.

Symptoms

• Drooping or inability to extend the fingertip
• Pain and swelling at the DIP joint
• Tenderness over the extensor tendon

Causes

Often caused by a sudden impact or forceful flexion, such as when a ball strikes the fingertip.

Diagnosis

Diagnosis is based on physical examination and confirmed by lateral X-rays.

Treatment Options

• Splinting the DIP joint in extension
• Continuous splinting for 6-8 weeks
• Surgical repair in complex cases

Conservative Management

Most cases are managed with a splint that holds the DIP joint in extension.

Rehabilitation Exercises

1. Gradual range-of-motion exercises after splint removal
2. Strengthening exercises for the finger
3. Functional hand therapy

Surgical Options

Surgery is reserved for cases with large bony avulsions or when splinting fails.

Anatomy Overview

The extensor tendon at the DIP joint of the finger is affected in mallet finger injuries.

Affected Areas

• Distal interphalangeal joint
• Fingertip

Frequently Asked Questions

QuestionAnswerHow long must the splint be worn?Typically, the splint is worn continuously for 6-8 weeks.Can mallet finger heal without surgery?Yes, most cases are successfully treated with splinting.

Prevention Strategies

• Wear protective gloves during sports
• Avoid activities with high risk of finger trauma

Related Conditions

• Extensor tendon injuries
• Phalangeal fractures

Additional Treatments

Post-splint rehabilitation is important to restore full finger function.