Related Experiment Video
Updated: May 21, 2026

Metacarpal Small Incision for Carpal Tunnel Syndrome
Published on: April 5, 2024
Preferred sleep position on the side is associated with carpal tunnel syndrome
Background:
Although carpal tunnel syndrome is the most common compressive neuropathy, there is no comprehensive theory of its etiology. Because of the prevalence of night symptoms, we are interested in the role of sleep position in the causation of carpal tunnel syndrome.
Methods:
We performed a case-control study comparing the prevalence of preferred sleep position in 68 cases and 138 controls. Analysis was stratified by age and gender and controlled for body mass index.
Results:
We found a strong and significant association between a preference for sleeping on the side and the presence of carpal tunnel syndrome in men and in women less than 60 years of age. Body mass index was associated with carpal tunnel syndrome in women but not men.
Conclusions:
Our findings of a strong association between the presence of carpal tunnel syndrome and preferred sleeping on the side suggest a comprehensive unifying theory of causation.
Related Concept Videos
Sleep Apnea
The condition is more prevalent among...
Anatomical Positions
The body is upright, facing forward, and standing erect.
The feet are parallel and flat on the floor.
The arms are hanging by the...
Insufficient Sleep and Sleep Deprivation
Sleep deprivation is a more severe form of sleep loss...
Sleep-Wake Cycles
NREM Sleep
NREM sleep comprises four progressive stages that seamlessly merge:
Narcolepsy
REM Sleep Behavior Disorder
RBD is significantly associated with...
