Adductor Canal Localization in Living and Cadaver

NCT ID: NCT07247591

Last Updated: 2025-11-25

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

NOT_YET_RECRUITING

Total Enrollment

200 participants

Study Classification

OBSERVATIONAL

Study Start Date

2025-11-25

Study Completion Date

2026-02-01

Brief Summary

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The aim of this study is to define the starting and ending points of the adductor canal in adductor canal block (ACB) applications through distance measurements relative to the anterior superior iliac spine (ASIS) and the adductor tubercle. These measurements are performed using ultrasound (USG) and correlated with cadaveric data.

Key research questions addressed include:

* Can the start and end points of the adductor canal be formulated along a line drawn between the ASIS and the adductor tubercle?
* Is there a definable relationship between the block application site and anatomical landmarks such as the vastoadductor membrane (VAM), the apex of the femoral triangle, and other adjacent structures that facilitates localization?

By validating ultrasound measurements with cadaveric findings, the study aims to provide researchers with a more predictable and reliable method for determining the optimal site for adductor canal block administration.

Detailed Description

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The aim of this study is to define the starting and ending points of the adductor canal (AC) in the context of adductor canal block (ACB) applications, through distance measurements related to the anterior superior iliac spine (ASIS) and adductor tubercle. These measurements are performed in two different planes: the first plane is along an imaginary line drawn between the ASIS and the femoral adductor tubercle, while the second plane is formed by the line between the ASIS and the base of the patella.

In these planes, distances were measured between the following points:

The distance between the adductor tubercle and ASIS,

The distance between ASIS and the base of the patella,

The distance between ASIS and the apex of the patella,

The distance between the midpoint of the inguinal fold and the base of the patella.

In patients, ultrasound was used to identify and mark the following anatomical points:

The apex of the iliopectineal fossa,

The first visible point of the vastoadductor membrane (VAM),

The point where the sartorius muscle ends with the intersection of the adductor longus and begins its contact with the edge of the adductor magnus point

The point where the adductor hiatus is located.

Additionally, in patients where visible, the descending genicular artery was also marked.

The position of the femoral artery in relation to the VAM (medial, middle, or lateral) was noted, as well as the location where the femoral artery intersects the adductor magnus and sartorius, and the depth from the skin to the adductor hiatus. Circumferential measurements of the thigh were also taken at these points.

Some of the data obtained was compared with anatomical measurements obtained through cadaveric dissection.

Key Research Questions

Where are the starting and ending points of the adductor canal?

Can the adductor canal be defined along a line drawn between the ASIS and the adductor tubercle?

Is there a definable relationship between the block application site and anatomical landmarks such as the vastoadductor membrane (VAM), the apex of the femoral triangle, and other adjacent structures that facilitate localization?

By validating ultrasound measurements with cadaveric findings, the study aims to provide researchers with a more predictable and reliable method for determining the optimal site for adductor canal block applications

Conditions

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Anatomy Adductor Canal Block

Study Design

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Observational Model Type

CASE_CONTROL

Study Time Perspective

PROSPECTIVE

Study Groups

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ULTRASONOGRAPHIC PARTICIPANT GROUP

Participants will have ultrasound imaging of the adductor canal anatomy.

No interventions assigned to this group

Cadaver Group

Anatomical measurements and adjacencies of the adductor canal will be examined on cadavers.

No interventions assigned to this group

Eligibility Criteria

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Inclusion Criteria

ASA 1-2-3 patients

BMI \<35

Ages 18-65

Those willing to participate in the study

Exclusion Criteria

Those unwilling to participate in the study

Pregnant women

BMI \>35

ASA 4-5-6 patients
Minimum Eligible Age

18 Years

Maximum Eligible Age

65 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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Ankara Etlik City Hospital

OTHER_GOV

Sponsor Role lead

Responsible Party

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Yasin Usta

Principal Investigator

Responsibility Role PRINCIPAL_INVESTIGATOR

Principal Investigators

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Müge Çakırca, Associate Professor

Role: STUDY_DIRECTOR

Ankara Etlik City Hospital

Locations

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Ankara Etlik City Hospital

Ankara, , Turkey (Türkiye)

Site Status

Countries

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Turkey (Türkiye)

Central Contacts

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Yasin USTA, M.D.

Role: CONTACT

+905542356313

Müge Çakırca, Ass Professor

Role: CONTACT

+905054433177

Facility Contacts

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Etlik City Hospital

Role: primary

+903125970000,

Other Identifiers

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AEŞH-BADEK-2025-0249

Identifier Type: -

Identifier Source: org_study_id

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