AnatomyNCT07247591
Adductor Canal Localization in Living and Cadaver
An observational study of Anatomy and Adductor Canal Block, run by Ankara Etlik City Hospital at 1 site in Turkey (Türkiye).
Trial summary
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. Read more about this study
- Who is it for?
- Ages 18 to 65 years
- Conditions the study is for
- Anatomy, Adductor Canal Block
- How many people
- 200 participants
- Where
- 1 siteTurkey (Türkiye)
- Study dates
- 25 Nov 2025to 1 Feb 2026
- Phase
- Observational
- Are there results?
- Not yet: the study is under way
Key requirements
Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.
- Ages 18 to 65 years
- All sexes
- No healthy volunteers
- Adult, Older adult
Study population: He study at Etlik City Hospital will include patients who meet the following criteria: ASA classification of 1, 2, or 3, indicating individuals who are healthy or have mild to moderate systemic disease without major functional limitation; a BMI below 35 to exclude participants with obesity-related comorbidities; and an age range of 18 to 65 to ensure a broad yet controlled sample while avoiding age-related confounding factors. All participants must also provide informed consent, confirming their understanding of the study's purpose, procedures, and potential risks.
Who may be able to join
- ASA 1-2-3 patients
- BMI <35
- Ages 18-65
- Those willing to participate in the study
Who cannot join
- Those unwilling to participate in the study
- Pregnant women
- BMI >35
- ASA 4-5-6 patients
Trial locations and contacts
1 site in 1 country. Contact the study team or a site near you to ask about taking part.
Turkey (Türkiye)1 site
Ankara Etlik City Hospital
Ankara
Etlik City Hospital, +903125970000,, etliksh.iletisim@saglik.gov.tr
About this study
Official title: Determination of Adductor Canal Location by USG Measurements and Cadaver Correlation
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:
Read more
- 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.
Read the detailed description
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
- Anatomy, Adductor Canal Block
- Keywords
- ASIS, ADDUCTOR CANAL, BLOCK
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
| Study group | Role | What they receive |
|---|---|---|
| ULTRASONOGRAPHIC PARTICIPANT GROUP | Participants will have ultrasound imaging of the adductor canal anatomy. | |
| Cadaver Group | Anatomical measurements and adjacencies of the adductor canal will be examined on cadavers. |
What is being measured
The primary outcome is the main question the study is designed to answer.
location of the adductor canal
Determine the location of the adductor canal on an imaginary line drawn between the anterior superior iliac spine and the adductor tubercle..
Measured: Perioperative/Periprocedural
Secondary outcomes (4)
Determining the entry point for adductor canal block
Standardization of the entry point for adductor canal block by defining the relationship of the canal to other structures
Measured: Perioperative/Periprocedural
Adductor Canal neighborhoods
Detection of the canal by imaging the Vasto adductor membrane
Measured: Perioperative/Periprocedural
cadaver dissection
Determining the compatibility of the data obtained in ultrasonographic imaging with the real anatomical structures after cadaver dissection
Measured: Perioperative/Periprocedural
adductor canal
measuring adductor canal length
Measured: Perioperative/Periprocedural
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted25 Nov 2025
- Study start25 Nov 2025 (estimated)
- Primary completion30 Dec 2025 (estimated)
- Study completion1 Feb 2026 (estimated)
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Other trials for AnatomyStudies of the same condition, open and under way.
- More trials run by Ankara Etlik City HospitalThe sponsor's other registered studies.
- What the trial phases meanHow a treatment moves from first tests in people to approval.
More details
For doctors and researchers: how the study is designed, who runs it, and its registry IDs.
Study design
- Study type
- Observational
- Observational model
- Case-control
- Time perspective
- Prospective
- Enrolment
- 200 participants (estimated)
Sponsor and investigators
- Lead sponsor
- Ankara Etlik City Hospital
- Sponsor type
- Other government
- Responsible party
- Principal investigator, Yasin Usta, Ankara Etlik City Hospital
- Investigators
- Müge Çakırca, Associate Professor, Study director, Ankara Etlik City Hospital
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT07247591
- Sponsor's protocol ID
- AEŞH-BADEK-2025-0249
- Status last verified
- Nov 2025
- First submitted
- 20 Sep 2025
- Last updated
- 25 Nov 2025
- Results posted
- No
- Data monitoring committee
- No
- FDA-regulated drug
- No
- FDA-regulated device
- No
- Individual data sharing
- No
Study at a glance
From the registry record, last updated by the sponsor on 25 Nov 2025. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Determination of Adductor Canal Location by USG Measurements and Cadaver Correlation
- ClinicalTrials.gov ID
- NCT07247591
- Acronym / sponsor ID
- AEŞH-BADEK-2025-0249
- Conditions
- Anatomy, Adductor Canal Block
- Keywords
- ASIS, ADDUCTOR CANAL, BLOCK
- Study type
- Observational
- Recruitment status
- Not yet recruiting
- Enrolment
- 200 participants (estimated)
- Lead sponsor
- Ankara Etlik City HospitalOther government
- Study start
- 25 Nov 2025 (estimated)
- Primary completion
- 30 Dec 2025 (estimated)
- Study completion
- 1 Feb 2026 (estimated)
- First posted
- 25 Nov 2025 (actual)
- Results
- Not posted in the source record
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
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
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
Study design
- Observational model
- Case-control
- Time perspective
- Prospective
- Number of arms
- 2
| Arm | Type | Receives |
|---|---|---|
| ULTRASONOGRAPHIC PARTICIPANT GROUP | – | –Participants will have ultrasound imaging of the adductor canal anatomy. |
| Cadaver Group | – | –Anatomical measurements and adjacencies of the adductor canal will be examined on cadavers. |
Who may qualify
- Ages
- 18 to 65 years
- Sex
- All
- Healthy volunteers
- Not accepted
- Age groups
- Adult, Older adult
- Study population
- He study at Etlik City Hospital will include patients who meet the following criteria: ASA classification of 1, 2, or 3, indicating individuals who are healthy or have mild to moderate systemic disease without major functional limitation; a BMI below 35 to exclude participants with obesity-related comorbidities; and an age range of 18 to 65 to ensure a broad yet controlled sample while avoiding age-related confounding factors. All participants must also provide informed consent, confirming their understanding of the study's purpose, procedures, and potential risks.
Key inclusion criteria (4 listed)
- ASA 1-2-3 patients
- BMI <35
- Ages 18-65
- Those willing to participate in the study
Key exclusion criteria (4 listed)
- Those unwilling to participate in the study
- Pregnant women
- BMI >35
- ASA 4-5-6 patients
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Primary outcome
location of the adductor canal
Time frame: Perioperative/Periprocedural
Determine the location of the adductor canal on an imaginary line drawn between the anterior superior iliac spine and the adductor tubercle..
4 secondary outcomes
Determining the entry point for adductor canal block
Time frame: Perioperative/Periprocedural
Adductor Canal neighborhoods
Time frame: Perioperative/Periprocedural
cadaver dissection
Time frame: Perioperative/Periprocedural
adductor canal
Time frame: Perioperative/Periprocedural
Results and safety
This study is still under way. Results are not available in the source record yet.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 25 Nov 2025.
- Individual participant dataSharing planned: No
Related trials for Anatomy
Active, not recruitingObservational study
Intravascular Lithotripsy in High Risk Calcified Iliac Anatomy for Transfemoral TAVR
Iliac Disease, Aortic Valve Stenosis
RecruitingObservational study
MRI Study of Musculoskeletal Function
Abnormalities, Imaging
Not yet recruitingObservational study
Ultrasound Mapping of the Anatomical Relationship Between the Right Internal Jugular Vein and Carotid Artery
Right Internal Jugular Vein-Right Common Carotid Artery Anatomical Relationship
RecruitingObservational study
Observational Study of the LambdaGuide System for Measurement of Observable Genitourinary Anatomy During Cystoscopic Procedures in Men
Genitourinary Anatomy
Not yet recruitingObservational study
3D-Printed Pelvic Models for Planning Complex Total Hip Arthroplasty
Developmental Dysplasia of the Hip, Acetabular Bone Loss
Referral and contact
AzTrials does not enrol participants or take referrals. Contact the study team or a site listed below; they decide who can take part.
Müge Çakırca, Associate Professor study director
Ankara Etlik City Hospital
1 site in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
An observational study of Anatomy and Adductor Canal Block, run by Ankara Etlik City Hospital at 1 site in Turkey (Türkiye).
The full registered description is in the About this study section and the official record.
Who may be eligible to take part?
The sponsor lists 4 inclusion and 4 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.
Is this clinical trial currently recruiting?
The record says: opening soon, as of the sponsor's last update on 25 Nov 2025. Status can change between updates, so confirm with the study contact before making plans.
Where is the study taking place?
The record lists 1 site in Turkey (Türkiye). Whether a site is taking part right now should be confirmed with that site. See every site.
What are the possible benefits and risks?
They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.
Are results available for this study?
This study is still under way. Results are not available in the source record yet.
How can a doctor refer a patient or contact the research team?
Contact Yasin USTA, M.D. (+905542356313, dryasinusta@gmail.com), or a site near the patient. AzTrials does not enrol participants or take referrals.
What does the primary outcome measure?
location of the adductor canal (time frame: Perioperative/Periprocedural). It is what the study was designed to measure, not a finding.
Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?
No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.
How often is this information updated?
AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 25 Nov 2025.