Scaphoid Fractures in Adults Aged 50 Years or Older: Epidemiology and Association With Osteopenia and Nonunion

Overview

Journal Hand (N Y)

Publisher Sage Publications

Specialties General Surgery
Orthopedics

Date 2024 Mar 20

PMID 38506444

Authors

Julia C Mastracci

R Randall McKnight

Gabriella E Ode

Brianna Caraet

Susan M Odum

Erika G Gantt

Affiliations

Soon will be listed here.

Abstract

Background: Scaphoid fractures are less commonly reported in adults older than 50 years. The association between bone density and outcomes following scaphoid fractures has not been explored in this patient population. The second metacarpal cortical percentage (2MCP) has been shown to predict low bone density. The purpose of this study is to describe the epidemiology and radiographic characteristics associated with scaphoid fractures in adults older than 50 years, determine the prevalence of osteopenia defined by 2MCP, and evaluate the characteristics associated with scaphoid nonunion in this population. We hypothesized that osteopenia defined by 2MCP would be common in this patient population and associated with scaphoid nonunion.

Methods: Patients older than 50 years with an acute, closed scaphoid fracture were identified. Demographic data, radiographic characteristics, and outcome data were collected. The 2MCP was measured using standard hand radiographs.

Results: A total of 111 patients were identified. Most fractures were nondisplaced and occurred in women via low-energy mechanism. Fifty-six patients (50.5%) had osteopenia defined by a 2MCP less than 60%. Nondisplaced fractures achieved union faster than displaced fractures ( < .05). Displaced, unstable fractures were statistically associated with nonunion ( < .001). 2MCP did not correlate with nonunion.

Conclusions: In adults older than 50 years, scaphoid fractures may represent a fragility fracture cohort given they occur more frequently in female patients via low-energy mechanisms and over half of the cohort had osteopenia defined by a 2MCP less than 60%. Displaced and unstable fractures were statistically more likely to go on to nonunion. Nonunion was not found to be associated with osteopenia.

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