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Author Spotlight: Enhancing Grasping Abilities for Hemiplegic Patients with Flexible Robotic Limbs

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Current concepts: mallet finger.

Sreenivasa R Alla¹, Nicole D Deal¹, Ian J Dempsey¹

¹Department of Orthopedics, University of Virginia, Charlottesville, VA 22903 USA.

Hand (New York, N.Y.)

|May 20, 2014

Summary

This summary is machine-generated.

Mallet finger, or baseball finger, results from extensor mechanism disruption at the distal interphalangeal (DIP) joint, causing finger deformity. Most cases are treatable without surgery, though surgical intervention may be necessary for complex or persistent injuries.

Keywords:

Bony mallet finger Mallet finger Soft tissue mallet finger

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Area of Science:

Orthopedics
Hand Surgery
Sports Medicine

Background:

Mallet finger involves disruption of the extensor mechanism at the distal interphalangeal (DIP) joint.
It can stem from tendon rupture (soft tissue mallet finger) or bony avulsion (bony mallet finger).
Untreated injuries can lead to PIP joint hyperextension and DIP joint flexion, resulting in swan neck deformity.

Purpose of the Study:

To summarize the etiology, pathophysiology, and management principles of mallet finger injuries.
To differentiate between soft tissue and bony mallet finger presentations.
To outline treatment strategies, including non-surgical and surgical options.

Main Methods:

Review of literature on mallet finger injuries.
Classification of mallet finger based on injury type (soft tissue vs. bony).
Discussion of non-surgical and surgical treatment indications.

Main Results:

Mallet finger causes extensor force imbalance between the proximal interphalangeal (PIP) and DIP joints.
Soft tissue mallet finger involves extensor tendon rupture in Zone 1.
Bony mallet finger involves extensor tendon avulsion from the distal phalanx with a bone fragment.

Conclusions:

Most mallet finger injuries are managed non-surgically.
Surgery may be indicated for acute, chronic, or failed prior treatments.
Prompt diagnosis and appropriate management are crucial to prevent long-term deformities.