ArticleMuscle & nerve2013
Prevalence of bifid median nerves and persistent median arteries and their association with carpal tunnel syndrome in a sample of Latino poultry processors and other manual workers.
Article in Muscle & nerve, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. An erratum has been issued. Cited by 22 papers.
What it found
Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.
The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
22 citing papers in PubMed, 76 citations in OpenAlex.
- Current Surgical Trends in Carpal Tunnel Syndrome.Archives of plastic surgery · 2026Article
- Article
- Ultrasound Characteristics of Carpal Tunnel Syndrome in the Spanish Population.Journal of clinical ultrasound : JCU · 2025Observational
- Utility of Handheld Ultrasound in Identifying Millimeter-Sized Vasculature in Living and Cadaveric Subjects.Cureus · 2024Article
- Automated segmentation of the median nerve in patients with carpal tunnel syndrome.Scientific reports · 2024Article
- Article
- Prevalence of Anatomical Variations in Patients with Carpal Tunnel Syndrome Undergoing Classical Open Carpal Tunnel Release.Revista brasileira de ortopedia · 2022Article
- Bifid median nerve: a notable anomaly in carpal tunnel syndrome.BMJ case reports · 2022Article
- The value of sonographic quantitative parameters in the diagnosis of carpal tunnel syndrome in the Vietnamese population.The Journal of international medical research · 2021Article
- Electrodiagnostic, Sonographic, and Clinical Features of Carpal Tunnel Syndrome with Bifid Median Nerve.Journal of pain research · 2021Article
- Carpal tunnel syndrome caused by the entrapment of a bifid Lanz IIIA Type anatomical variant of median nerve: A case report and systematic literature review.Surgical neurology international · 2021Article
- Review Article "Spotlight on Ultrasonography in the Diagnosis of Peripheral Nerve Disease: The Evidence to Date".International journal of general medicine · 2021Review
- Persistent median artery inside the carpal tunnel: description and surgical implications.Autopsy & case reports · 2020Article
- Current and future applications of ultrasound imaging in peripheral nerve disorders.World journal of radiology · 2020Review
- Identification of Aberrant Muscle Bellies in the Carpal Tunnel using Sonography.Journal of diagnostic medical sonography : JDMS · 2019Article
- Sonographic evaluation of peripheral nerve pathology in the emergency setting.Emergency radiology · 2018Review
- Sonographic Findings of the Bifid Median Nerve and Persistent Median Artery in Carpal Tunnel: A Preliminary Study in Chinese Individuals.Clinics (Sao Paulo, Brazil) · 2017Article
- Prevalence of persistent median artery in carpal tunnel syndrome: sonographic assessment.Surgical and radiologic anatomy : SRA · 2016Article
- Persistent median artery thrombosis: A rare cause of carpal tunnel syndrome.Australasian journal of ultrasound in medicine · 2015Article
- Carpal tunnel syndrome caused by vascular nerve impairment treated with open release of the carpal tunnel.Case reports in plastic surgery & hand surgery · 2015Article
Corrections and comments
- Erratum issuedSchultz, Mark R [corrected to Schulz, Mark R]
Authors and funding
11 authors at 3 institutions in 2 countries.
Funding
Abstract
introductionThe prevalence of bifid median nerves and persistent median arteries, their co-occurrence, and their relationship to carpal tunnel syndrome (CTS) are only understood partially.
methodsWe screened 1026 wrists of 513 Latino manual laborers in North Carolina for bifid median nerves and persistent median arteries using electrodiagnosis and ultrasound.
resultsA total of 8.6% of wrists had a bifid median nerve, and 3.7% of wrists had a persistent median artery independent of subgroup ethnicity, age, gender, or type of work. An association with definite carpal tunnel syndrome was not found. The presence of either anatomic variant was associated with a high likelihood of co-occurrence of another variant in the same or the contralateral wrist.
conclusionsThe occurrence of median anatomic variants can be determined in field studies using ultrasound. Persistent median arteries and bifid median nerves tend to co-occur but do not put manual laborers at additional risk of developing CTS.
Indexed as
Identifiers
What OpenQuestion holds
Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.