Connective Tissue of Pectoralis Major Muscle: Anatomical Study (USPEC)

April 2, 2026 updated by: CMC Ambroise Paré

The delto-pectoral tendon (DPT) is a new tendon recently identified. It completes the insertion of the pectoralis major and perfectly explains the different injuries encountered.

The objective of this observational study is to visualize this new tendon, the DPT, using ultrasound, to measure it, to characterize its role in the overall architecture of the pectoralis major muscle and to analyze its relationship with its main tendon and the anterior and posterior laminae.

Study Overview

Status

Completed

Conditions

Intervention / Treatment

Study Type

Observational

Enrollment (Actual)

46

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

  • France
    • Île-de-France Region
      • Neuilly-sur-Seine, Île-de-France Region, France, 92200
        • Ambroise Paré - Hartmann Private Hospital Group

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

  • Adult
  • Older Adult

Accepts Healthy Volunteers

No

Sampling Method

Probability Sample

Study Population

Adults with no history of pectoralis major and consulting for a musculoskeletal pathology of the upper limb

Description

Inclusion Criteria:

  • Patient > 18 years,
  • Consultation for a musculoskeletal pathology of the upper limb

Exclusion Criteria:

  • History of pathology of the pectoralis major or of the distal tendon of the pectoralis major
  • Pregnant or breastfeeding women
  • Patient under protection of the adults (guardianship, curators or safeguard of justice)
  • Unable to understand
  • Opposition by the patient

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

Cohorts and Interventions

Group / Cohort
Intervention / Treatment
Adults with no history of pectoralis major
Other: Ultrasound
Through systematic ultrasound visualization of the pectoralis major muscle, we seek to directly visualize and characterize the different intra- and extra-muscular connective structures of the muscle - Delto Pectoral Tendon (DPT) , Distal Pectoralis Major Tendon (PMT), Anterior Deltoid Tendon (ADT), Anterior Pretendinous Lamina of the Pectoralis Major (ALPM), Posterior Pretendinous Lamina of the Pectoralis Major (PLPM) and Deep Fascia of the Pectoral Major (DFPM) - constituting its connective skeleton, with particular attention to its distal portion near the humerus and on the search for this DPT tendon.
Other Names:
  • Shoulder ultrasound with focus on pectoralis major muscle connective skeleton and distal tendon

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Time Frame
Ultrasound visualization of Delto Pectoral Tendon
Time Frame: Day 1
Day 1

Secondary Outcome Measures

Outcome Measure
Time Frame
Measurement of DPT by ultrasonography (height, length and thickness in mm)
Time Frame: Day 1
Day 1
Measurement of ADT by ultrasonography (height, length and thickness in mm)
Time Frame: Day 1
Day 1
Measurement of PMT by ultrasonography (height, length and thickness in mm)
Time Frame: Day 1
Day 1
Measurement of the distances in mm between the PMT humeral insertion and the different connective structures: ADT, DPT, ALPM, PLPM and DFPM
Time Frame: Day 1
Day 1
Ultrasound visualization of the clavicular and sternal portions of the pectoralis major.
Time Frame: Day 1
Day 1

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

CMC Ambroise Paré

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

General Publications

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Actual)

July 11, 2024

Primary Completion (Actual)

September 19, 2024

Study Completion (Actual)

September 19, 2024

Study Registration Dates

First Submitted

May 29, 2024

First Submitted That Met QC Criteria

June 3, 2024

First Posted (Actual)

June 4, 2024

Study Record Updates

Last Update Posted (Actual)

April 8, 2026

Last Update Submitted That Met QC Criteria

April 2, 2026

Last Verified

April 1, 2026

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

  • 2024/02

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

NO

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

product manufactured in and exported from the U.S.

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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