Musculoskeletal SystemNCT07406672
Comparison of Clinical Joint Localization and Ultrasound-Confirmed Joint Positioning
An observational study of Musculoskeletal System and Physical Examination, run by Bursa City Hospital at 1 site in Turkey (Türkiye).
Trial summary
This prospective, cross-sectional observational study aims to evaluate the differences between joint localizations determined by physicians based on physical examination and joint positions confirmed by musculoskeletal ultrasound. Read more about this study
- Who is it for?
- Ages 18 years and olderHealthy volunteers can take part
- Conditions the study is for
- Musculoskeletal System, Physical Examination
- What is being tested?
- Observational Assessment
- How many people
- 30 participants
- Where
- 1 siteTurkey (Türkiye)
- Study dates
- 1 Mar 2026to 1 Apr 2026
- Phase
- Observational
- Are there results?
- None posted in the registry
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 years and older
- All sexes
- Healthy volunteers accepted
- Adult, Older adult
Study population: The study population consists of adult physician volunteers recruited from a tertiary care hospital. Participants are licensed medical doctors who participate as reference subjects for joint localization. Each participant is asked to indicate the anatomical location of selected joints (knee, elbow, ankle, and wrist), which is subsequently assessed by physical examination and confirmed using ultrasound imaging within the scope of this observational study.
Who may be able to join
- Physicians working as residents or specialists in Physical Medicine and Rehabilitation or Orthopedics and Traumatology
- Age 18 years or older
- Voluntary participation with written informed consent
- Ability to perform physical examination-based joint localization
Who cannot join
- Refusal to participate or provide written informed consent
- Any condition preventing completion of physical examination procedures
- Non-compliance with the study protocol
Trial locations and contacts
1 site in 1 country.
About this study
Official title: Evaluation of Differences Between Joint Localizations Determined by Physical Examination and Ultrasound-Confirmed Joint Positions of the Knee, Elbow, Ankle and Wrist
This prospective, cross-sectional observational study aims to evaluate the differences between joint localizations determined by physicians based on physical examination and joint positions confirmed by musculoskeletal ultrasound. Knee, elbow, ankle, and wrist joints will be assessed in volunteer physicians working in Physical Medicine and Rehabilitation and Orthopedics and Traumatology.
For each joint, participants will identify the joint space based on physical examination and the marked locations will be compared with ultrasound-confirmed joint positions. The distance between clinically determined and ultrasound-confirmed locations will be measured in millimeters. The study seeks to provide objective data on the accuracy of clinical joint localization and to support educational approaches in clinical anatomy and musculoskeletal examination training.
Read the detailed description
This study is designed as a prospective, cross-sectional, observational comparison of clinical joint localization and ultrasound-confirmed joint positioning. The study will be conducted at Bursa City Hospital and will include volunteer physicians working as residents or specialists in Physical Medicine and Rehabilitation or Orthopedics and Traumatology.
Participants will be asked to localize the joint space of the knee (tibiofemoral), elbow (humeroulnar), ankle (tibiotalar), and wrist (radiocarpal) based on physical examination in standardized positions. Clinically determined joint locations will be marked on the skin using a removable marker.
Following clinical marking, musculoskeletal ultrasound examinations will be performed by an experienced investigator using a high-frequency linear transducer. Ultrasound-confirmed joint positions will be identified according to standardized scanning protocols. The investigator performing the ultrasound assessment will be blinded to the participant's specialty and level of experience.
The primary outcome measure will be the distance, measured in millimeters, between the clinically marked joint location and the ultrasound-confirmed joint position. Secondary analyses will evaluate differences in localization accuracy among different joints and between physicians with different levels of clinical experience.
The study involves no therapeutic or diagnostic intervention and poses minimal risk to participants. All data will be collected anonymously and analyzed at the group level. The results are expected to contribute to a better understanding of the limitations of physical examination-based joint localization and to inform educational strategies incorporating ultrasound in clinical anatomy training.
- Conditions
- Musculoskeletal System, Physical Examination
- Being tested
- Observational Assessment
- Keywords
- Ultrasonography, Musculoskeletal Ultrasound, Clinical Anatomy
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
Observational AssessmentOther
No therapeutic or diagnostic intervention is applied. Participants undergo an observational assessment consisting of physical examination-based joint localization followed by ultrasound confirmation for measurement and comparison purposes only.
| Study group | Role | What they receive |
|---|---|---|
| Physician Participants | Volunteer physicians working as residents or specialists in Physical Medicine and Rehabilitation or Orthopedics and Traumatology who undergo clinical joint localization assessment and ultrasound confirmation. Receives: Other: Observational Assessment |
What is being measured
The primary outcome is the main question the study is designed to answer.
Distance Between Clinically Determined and Ultrasound-Confirmed Joint Localization
The distance, measured in millimeters, between the joint location identified by physical examination and the joint position confirmed by musculoskeletal ultrasound.
Measured: Day 1
Secondary outcomes (2)
Joint-Specific Differences in Localization Accuracy
Comparison of distance differences between clinically determined and ultrasound-confirmed joint localization across different joints (knee, elbow, ankle, and wrist).
Measured: Day 1
Effect of Physician Experience on Joint Localization Accuracy
Comparison of distance differences between clinically determined and ultrasound-confirmed joint localization according to physician experience level (resident versus specialist).
Measured: Day 1
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted12 Feb 2026
- Study start1 Mar 2026
- Primary completion1 Apr 2026
- Study completion1 Apr 2026
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Other trials for Musculoskeletal SystemStudies of the same condition, open and under way.
- 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
- Cohort
- Time perspective
- Prospective
- Enrolment
- 30 participants (actual)
Sponsor and investigators
- Lead sponsor
- Bursa City Hospital
- Sponsor type
- Other government
- Responsible party
- Principal investigator, Taner Dandinoğlu, Bursa City Hospital
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT07406672
- Sponsor's protocol ID
- 2026-PMR-3
- Status last verified
- May 2026
- First submitted
- 6 Feb 2026
- Last updated
- 12 May 2026
- Results posted
- No
- Data monitoring committee
- No
- FDA-regulated drug
- No
- FDA-regulated device
- No
- Individual data sharing
- Undecided
Study at a glance
From the registry record, last updated by the sponsor on 12 May 2026. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Evaluation of Differences Between Joint Localizations Determined by Physical Examination and Ultrasound-Confirmed Joint Positions of the Knee, Elbow, Ankle and Wrist
- ClinicalTrials.gov ID
- NCT07406672
- Acronym / sponsor ID
- 2026-PMR-3
- Conditions
- Musculoskeletal System, Physical Examination
- Keywords
- Ultrasonography, Musculoskeletal Ultrasound, Clinical Anatomy
- Study type
- Observational
- Recruitment status
- Completed
- Enrolment
- 30 participants (actual)
- Lead sponsor
- Bursa City HospitalOther government
- Study start
- 1 Mar 2026 (actual)
- Primary completion
- 1 Apr 2026 (actual)
- Study completion
- 1 Apr 2026 (actual)
- First posted
- 12 Feb 2026 (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.
This prospective, cross-sectional observational study aims to evaluate the differences between joint localizations determined by physicians based on physical examination and joint positions confirmed by musculoskeletal ultrasound. Knee, elbow, ankle, and wrist joints will be assessed in volunteer physicians working in Physical Medicine and Rehabilitation and Orthopedics and Traumatology.
For each joint, participants will identify the joint space based on physical examination and the marked locations will be compared with ultrasound-confirmed joint positions. The distance between clinically determined and ultrasound-confirmed locations will be measured in millimeters. The study seeks to provide objective data on the accuracy of clinical joint localization and to support educational approaches in clinical anatomy and musculoskeletal examination training.
Detailed description
This study is designed as a prospective, cross-sectional, observational comparison of clinical joint localization and ultrasound-confirmed joint positioning. The study will be conducted at Bursa City Hospital and will include volunteer physicians working as residents or specialists in Physical Medicine and Rehabilitation or Orthopedics and Traumatology.
Participants will be asked to localize the joint space of the knee (tibiofemoral), elbow (humeroulnar), ankle (tibiotalar), and wrist (radiocarpal) based on physical examination in standardized positions. Clinically determined joint locations will be marked on the skin using a removable marker.
Following clinical marking, musculoskeletal ultrasound examinations will be performed by an experienced investigator using a high-frequency linear transducer. Ultrasound-confirmed joint positions will be identified according to standardized scanning protocols. The investigator performing the ultrasound assessment will be blinded to the participant's specialty and level of experience.
The primary outcome measure will be the distance, measured in millimeters, between the clinically marked joint location and the ultrasound-confirmed joint position. Secondary analyses will evaluate differences in localization accuracy among different joints and between physicians with different levels of clinical experience.
The study involves no therapeutic or diagnostic intervention and poses minimal risk to participants. All data will be collected anonymously and analyzed at the group level. The results are expected to contribute to a better understanding of the limitations of physical examination-based joint localization and to inform educational strategies incorporating ultrasound in clinical anatomy training.
Study design
- Observational model
- Cohort
- Time perspective
- Prospective
- Number of arms
- 1
| Arm | Type | Receives |
|---|---|---|
| Physician Participants | – | Other: Observational AssessmentVolunteer physicians working as residents or specialists in Physical Medicine and Rehabilitation or Orthopedics and Traumatology who undergo clinical joint localization assessment and ultrasound confirmation. |
Who may qualify
- Ages
- 18 years and older
- Sex
- All
- Healthy volunteers
- Accepted
- Age groups
- Adult, Older adult
- Study population
- The study population consists of adult physician volunteers recruited from a tertiary care hospital. Participants are licensed medical doctors who participate as reference subjects for joint localization. Each participant is asked to indicate the anatomical location of selected joints (knee, elbow, ankle, and wrist), which is subsequently assessed by physical examination and confirmed using ultrasound imaging within the scope of this observational study.
Key inclusion criteria (4 listed)
- Physicians working as residents or specialists in Physical Medicine and Rehabilitation or Orthopedics and Traumatology
- Age 18 years or older
- Voluntary participation with written informed consent
- Ability to perform physical examination-based joint localization
Key exclusion criteria (3 listed)
- Refusal to participate or provide written informed consent
- Any condition preventing completion of physical examination procedures
- Non-compliance with the study protocol
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Interventions
| Intervention | Type | Arms |
|---|---|---|
| Observational AssessmentNo therapeutic or diagnostic intervention is applied. Participants undergo an observational assessment consisting of physical examination-based joint localization followed by ultrasound confirmation for measurement and comparison purposes only. | Other | Physician Participants |
Primary outcome
Distance Between Clinically Determined and Ultrasound-Confirmed Joint Localization
Time frame: Day 1
The distance, measured in millimeters, between the joint location identified by physical examination and the joint position confirmed by musculoskeletal ultrasound.
2 secondary outcomes
Joint-Specific Differences in Localization Accuracy
Time frame: Day 1
Effect of Physician Experience on Joint Localization Accuracy
Time frame: Day 1
Results and safety
The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 12 May 2026.
- Individual participant dataSharing planned: Undecided
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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. This study is not recruiting at the moment.
The record lists no contact. Use the official record to reach the sponsor.
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 Musculoskeletal System and Physical Examination, run by Bursa 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 3 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: finished, as of the sponsor's last update on 12 May 2026. 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?
The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.
How can a doctor refer a patient or contact the research team?
The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.
What does the primary outcome measure?
Distance Between Clinically Determined and Ultrasound-Confirmed Joint Localization (time frame: Day 1). 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 12 May 2026.