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The Prevalence of the Linburg-Comstock Variation

NCT06142370 · Status: ENROLLING_BY_INVITATION · Phase: NA · Type: INTERVENTIONAL · Enrollment: 500

Last updated 2023-11-21

No results posted yet for this study

Summary

The purpose of this study is to explore the physical exam characteristics of patients referred to orthopedic surgeons with a diagnosis of thumb carpometacarpal (CMC) arthritis. CMC osteoarthritis of the thumb is one of the most common degenerative conditions of the hand in 11% of men and 33% of women (Gillis et al., 2011). Patients with CMC arthritis may experience pain, decreased range of motion, loss of grip and pinch strength, often limiting participation in activities of daily living (Bertozzi et al., 2014). In 1979, two physicians identified a variation of a tendinous connection in the wrist between the tip of the index finger and the tip of the thumb known as the Linburg-Comstock variation (LCV) (Linburg \& Comstock, 1979). The prevalence of the LCV varies respectively from 13-66% in both males and females (Erić et al., 2019). A physical examination of patients with LCV reveals concurrent flexion of the flexor digitorum profundus to the index finger and flexor pollicis longus. The study aims to gain more insight into patients diagnosed with CMC arthritis through clinical examination for LCV to consider an association of the diagnoses.

Currently, there is no evidence surrounding patients with symptomatic CMC arthritis and LCV. The hypothesis is that there is an association between symptomatic CMC arthritis and LCV. Patients with a LCV may then be more likely to develop painful CMC arthritis.

Conditions

  • Anomaly; Hand

Interventions

OTHER

Descriptive

The patients will be asked by the recruiting physicians to perform a clinical examination looking for the LCV, which will take a total of five seconds. This is a self-test and not part of a regular clinical examination

Sponsors & Collaborators

  • Albany Medical College

    collaborator OTHER

  • Russell Sage College

    lead OTHER

Principal Investigators

  • Chris Mulligan · Russell Sage College

Study Design

Allocation
NA
Purpose
SCREENING
Masking
NONE
Model
SINGLE_GROUP

Eligibility

Min Age
35 Years
Max Age
89 Years
Sex
ALL
Healthy Volunteers
Yes

Timeline & Regulatory

Start
2022-05-07
Primary Completion
2024-05-10
Completion
2025-05-10

Countries

  • United States

Study Locations

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Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT06142370 on ClinicalTrials.gov