[Work performance as a risk factor for carpal tunnel syndrome]

Area of Science:

• Occupational Medicine
• Orthopedics
• Ergonomics

Context:

• Carpal tunnel syndrome (CTS) is often considered an occupational disease, necessitating clear criteria for its certification.
• Understanding the specific biomechanical factors in job performance that contribute to CTS is crucial for accurate diagnosis and prevention.
• While computer work ergonomics have improved, other occupations still present significant risks.

Purpose:

• To identify and quantitatively analyze job performance features that increase carpal tunnel constriction.
• To review well-evidenced risk factors for carpal tunnel syndrome beyond occupational exposure.
• To highlight the need for precise quantification of hand burdening factors in occupational assessments.

Summary:

• Job performance elements like specific hand postures (dorsal/palmar bending, extension), forceful gripping, object manipulation, direct pressure, repetitive motions, and tool vibration contribute to carpal tunnel constriction.
• Occupations in meat processing, assembly, packing, and cashiering exhibit these risk factors.
• Established CTS risk factors include anatomical (carpal tunnel size), medical (arthritis, hormonal disorders, diabetes, obesity, hypercholesterolemia), and lifestyle (smoking, alcohol) elements.

Impact:

• Provides a framework for objectively assessing the occupational contribution to carpal tunnel syndrome.
• Informs the development of targeted workplace interventions and ergonomic improvements.
• Contributes to more accurate disability assessments and compensation claims related to occupational CTS.