Mallet Finger, sometimes referred to as Baseball Finger, occurs when the extensor tendon responsible for straightening the distal interphalangeal (DIP) joint is damaged or torn. In some cases, the tendon injury may pull off a small fragment of bone from the distal phalanx, known as an avulsion fracture.

The injury usually occurs when a forceful impact bends the fingertip suddenly while the finger is extended. This prevents the tendon from effectively straightening the fingertip, resulting in a characteristic drooping appearance.

Mallet Finger most commonly affects:

• Athletes
• Individuals participating in ball sports
• Workers exposed to hand trauma
• Individuals experiencing accidental finger injuries

Early diagnosis and proper treatment are important to achieve optimal recovery and prevent permanent finger deformity.

At Magnum Physiotherapy, our rehabilitation programs focus on restoring function, protecting healing tissues, and maximizing hand performance.

Anatomy Involved

Extensor Tendon

The extensor tendon runs along the back of the finger and allows the fingertip to straighten.

Functions

• Extends the distal interphalangeal (DIP) joint
• Assists with hand function and object manipulation

Distal Interphalangeal (DIP) Joint

The joint closest to the fingertip.

This is the primary joint affected in Mallet Finger injuries.

Distal Phalanx

The bone at the tip of the finger.

In some cases, a small portion of this bone may fracture along with the tendon injury.

Types of Mallet Finger

Tendinous Mallet Finger

• Involves tendon stretching or rupture
• No associated fracture

Bony Mallet Finger

• Tendon injury with an avulsion fracture
• A small bone fragment is pulled away from the distal phalanx

Common Symptoms

• Drooping fingertip
• Inability to actively straighten the fingertip
• Pain at the end of the finger
• Swelling around the DIP joint
• Bruising
• Tenderness
• Mild deformity

Symptoms typically appear immediately after injury.

Causes & Risk Factors

Common Causes

• Ball striking the fingertip
• Sports injuries
• Finger jamming injuries
• Workplace accidents
• Falls

Sports Commonly Associated

• Baseball
• Basketball
• Volleyball
• Football
• Cricket

Risk Factors

• Participation in ball sports
• Previous finger injuries
• Occupational hand trauma

Conditions Associated with Mallet Finger

• Avulsion Fractures
• Finger Sprains
• Tendon Injuries
• Swan Neck Deformity (if untreated)
• Joint Stiffness

Diagnosis

Diagnosis is based on clinical assessment and imaging.

Clinical Examination

Healthcare providers evaluate:

• Finger position
• Ability to actively extend the fingertip
• Swelling and tenderness
• Joint stability

Imaging Studies

X-rays

Used to:

• Identify fractures
• Assess joint alignment
• Determine injury severity

MRI is rarely required but may be used in complex cases.

At Magnum Physiotherapy, we assess:

• Finger mobility
• Hand function
• Grip strength
• Functional limitations

Treatment at Magnum Physiotherapy

Most Mallet Finger injuries can be treated successfully without surgery.

Splinting

The cornerstone of treatment.

Continuous Splinting

The DIP joint is maintained in full extension for:

• Typically 6–8 weeks
• Sometimes longer depending on healing

The fingertip must remain straight during the healing period.

Physiotherapy Rehabilitation

Following immobilization, rehabilitation helps restore motion and function.

Range of Motion Exercises

• Gentle finger mobility exercises
• Controlled joint movement progression

Tendon Gliding Exercises

Promote smooth tendon movement and reduce stiffness.

Strengthening Exercises

Focus on:

• Finger strength
• Grip strength
• Hand function

Functional Retraining

Designed to restore:

• Dexterity
• Fine motor skills
• Hand coordination

Advanced Physiotherapy Treatments

Depending on individual needs:

• Soft Tissue Mobilization
• Scar Management (if surgery was required)
• Joint Mobilization
• Therapeutic Exercises
• Functional Hand Rehabilitation

Surgical Management

Surgery may be considered if:

• A large fracture fragment is present
• Joint alignment is disrupted
• Conservative treatment fails
• The injury is complex or chronic

Surgical Options

• Pin fixation
• Tendon repair
• Fracture stabilization

Post-surgical rehabilitation is essential for optimal recovery.

Benefits of Physiotherapy for Mallet Finge

• Restores finger mobility
• Improves hand strength
• Reduces stiffness
• Enhances dexterity
• Promotes tendon healing
• Improves grip function
• Supports return to work
• Supports return to sports
• Reduces risk of deformity
• Improves overall hand function

Recovery & Prognosis

Most patients recover well with early treatment and adherence to splinting.

Typical Recovery Timeline

Splinting Phase

• Approximately 6–8 weeks

Rehabilitation Phase

• Several additional weeks

Some mild extension lag may persist in certain cases, but function is often excellent.

Potential Complications

Without proper treatment, complications may include:

• Permanent drooping of the fingertip
• Joint stiffness
• Chronic pain
• Reduced finger function
• Swan Neck Deformity

Early treatment significantly improves outcomes.

Prevention Tips

• Use proper sports techniques
• Wear protective sports equipment when appropriate
• Strengthen hand and finger muscles
• Address finger injuries promptly

When Should You Seek Medical Attention?

Seek medical evaluation if you experience:

• Inability to straighten the fingertip
• Finger deformity after injury
• Significant swelling or bruising
• Persistent pain
• Reduced hand function

Early diagnosis and treatment provide the best opportunity for full recovery.

Why Choose Magnum Physiotherapy?

At Magnum Physiotherapy, we specialize in hand and orthopedic rehabilitation. Our individualized Mallet Finger treatment programs combine evidence-based physiotherapy, mobility restoration, strengthening exercises, and functional retraining to help patients regain optimal hand function and return to their daily activities with confidence.