NCT06410339

Brief Summary

The objective of this study is to assess whether recreational rock climbers experience thickening of the flexor digitorum tendon in the 2nd 3rd and 4th fingers. In these fingers the study will also assess whether there is thickening of the A2 annular pulley and if there is a measurable increase in the tendon to bone distance at the level of the A2 pulley when the fingers are placed into flexion against mild resistance. This study aims to provide clinicians with an understanding of how exposure to rock climbing can lead to chronic anatomical changes to the soft tissue structures of the finger. These changes have been demonstrated in the elite rock climber population, but have yet to be studied in the much larger and growing recreational rock climbing population which consisted of nearly 10 million participants in 2021. If significant, these anatomical variations might guide the assessment of imaging and clinical decision making when managing finger injuries in patients with exposure to rock climbing. Portable ultrasound probes will be used to scan and measure the dimensions of various soft tissue structures in the hands of both rock climbers and a control population, this data will be paired with data collected in a brief survey asking about exposure to rock climbing, history of finger injuries, and style of climbing.

Trial Health

57
Monitor

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Trial has exceeded expected completion date
Enrollment
50

participants targeted

Target at P25-P50 for all trials

Timeline
Completed

Started Apr 2024

Shorter than P25 for all trials

Geographic Reach
1 country

1 active site

Status
recruiting

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

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Study Timeline

Key milestones and dates

Study Start

First participant enrolled

April 29, 2024

Completed
1 day until next milestone

First Submitted

Initial submission to the registry

April 30, 2024

Completed
13 days until next milestone

First Posted

Study publicly available on registry

May 13, 2024

Completed
4 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

September 1, 2024

Completed
8 months until next milestone

Study Completion

Last participant's last visit for all outcomes

May 1, 2025

Completed
Last Updated

May 13, 2024

Status Verified

May 1, 2024

Enrollment Period

4 months

First QC Date

April 30, 2024

Last Update Submit

May 8, 2024

Conditions

Outcome Measures

Primary Outcomes (1)

  • Injuries to finger, specifically flexor tendon

    Questionnaire

    1 year

Study Arms (2)

rock climbers

rock climbers of varying experience levels 18-40 years old

Diagnostic Test: Ultrasound

control

non rock climbers 18-40 years old

Diagnostic Test: Ultrasound

Interventions

UltrasoundDIAGNOSTIC_TEST

ultrasound of flexor tendons on hands

controlrock climbers

Eligibility Criteria

Age18 Years - 40 Years
Sexall
Healthy VolunteersYes
Age GroupsAdult (18-64)
Sampling MethodProbability Sample
Study Population

healthy 18-40 year olds

You may qualify if:

  • \*Able to hold finger still for ultrasound measurement

You may not qualify if:

  • Previous ligamentous or tendinous injury in the fingers being tested
  • Connective tissue disorder
  • Condition affecting the structure or function of their fingers.
  • Pregnancy

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Rocky Vista University

Parker, Colorado, 80112, United States

RECRUITING

Related Publications (3)

  • Klauser A, Bodner G, Frauscher F, Gabl M, Zur Nedden D. Finger injuries in extreme rock climbers. Assessment of high-resolution ultrasonography. Am J Sports Med. 1999 Nov-Dec;27(6):733-7. doi: 10.1177/03635465990270060801.

    PMID: 10569358BACKGROUND
  • El-Sheikh Y, Wong I, Farrokhyar F, Thoma A. Diagnosis of finger flexor pulley injury in rock climbers: A systematic review. Can J Plast Surg. 2006 Winter;14(4):227-31. doi: 10.1177/229255030601400405.

    PMID: 19554140BACKGROUND
  • Schoffl V, Simon M, Lutter C. [Finger and shoulder injuries in rock climbing]. Orthopade. 2019 Dec;48(12):1005-1012. doi: 10.1007/s00132-019-03825-3. German.

    PMID: 31705177BACKGROUND

MeSH Terms

Interventions

Ultrasonography

Intervention Hierarchy (Ancestors)

Diagnostic ImagingDiagnostic Techniques and ProceduresDiagnosis

Study Design

Study Type
observational
Observational Model
COHORT
Time Perspective
PROSPECTIVE
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

April 30, 2024

First Posted

May 13, 2024

Study Start

April 29, 2024

Primary Completion

September 1, 2024

Study Completion

May 1, 2025

Last Updated

May 13, 2024

Record last verified: 2024-05

Locations