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Metacarpal neck fractures

Author
Josh Bloom, MD, MPH
Section Editors
Patrice Eiff, MD
Chad A Asplund, MD, FACSM, MPH
Deputy Editor
Jonathan Grayzel, MD, FAAEM

INTRODUCTION

Metacarpal fractures are among the most common hand injuries, and frequently present to emergency departments and clinics. Fractures of the metacarpal neck, including so-called "boxer's fractures" (fractures of the fifth metacarpal neck) account for a substantial percentage of all hand fractures.

The presentation, diagnosis, and management of metacarpal neck fractures is reviewed here. A general overview of metacarpal fractures and the management of other types of metacarpal fractures are discussed separately. (See "Overview of metacarpal fractures" and "Metacarpal shaft fractures" and "First (thumb) metacarpal fractures" and "Metacarpal base fractures" and "Metacarpal head fractures".)

EPIDEMIOLOGY

Metacarpal fractures are common injuries that account for 30 to 40 percent of all hand fractures [1]. Metacarpal neck fractures are the most common and are usually due to direct trauma, typically involving young males [2,3]. In younger and older populations, falls are another common mechanism of injury. Metacarpal neck fractures most often involve the fifth and to a lesser degree, the fourth metacarpal neck. Fractures of the fifth metacarpal neck ("boxer's fractures") account for approximately 10 percent of all hand fractures.

CLINICAL ANATOMY

Finger and metacarpal anatomy are reviewed in greater detail separately; items of particular relevance to metacarpal neck fractures are discussed below. (See "Finger and thumb anatomy" and "Overview of metacarpal fractures", section on 'Anatomy'.)

Metacarpals are often described using the numbers one through five. The first metacarpal refers to that associated with the thumb, the second to that associated with the index finger, and so on through the fifth metacarpal.

                          
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Literature review current through: Oct 2017. | This topic last updated: Oct 23, 2017.
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