Postoperative Chronic PainNCT07330947
Incidence and Risk Factors of Postoperative Chronic Pain in Patients Who Have Undergone Hallux Valgus Surgery
An observational study of Postoperative Chronic Pain and Hallux Valgus Surgery, run by Pontificia Universidad Catolica de Chile at 1 site in Chile.
Trial summary
The goal of this observational study is to learn about the incidence and risk factors of postoperative chronic pain in adult patients who have undergone Hallux Valgus surgery (between january 2021 and december 2024). This will be assesed through scales and medical records information. Read more about this study
- Who is it for?
- Ages 18 years and older
- Conditions the study is for
- Postoperative Chronic Pain, Hallux Valgus Surgery
- How many people
- 350 participants
- Where
- 1 siteChile
- Study dates
- 21 Sep 2026to 30 Dec 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 years and older
- All sexes
- No healthy volunteers
- Adult, Older adult
Study population: This is a descriptive cross-sectional study involving 350 patients who underwent Hallux Valgus surgery at a Clinical Hospital from January 2021 to April 2024. The study includes patients who underwent Hallux Valgus surgery within the UC Christus Health Network. The telephone records of patients who meet the inclusion criteria will be obtained from the Orthopedics Service database, in adherence to the UC Christus clinical data protection policy.
Who may be able to join
- Patients who underwent Hallux Valgus surgery at various centers within the UC Christus network from January 2021 to April 2024.
Who cannot join
- Patients who had difficulty responding to follow-up from the UC Christus health network Pain Unit and/or who do not answer the telephone call
Trial locations and contacts
1 site in 1 country. Contact the study team or a site near you to ask about taking part.
Chile1 site
Pontificia Universidad Católica de Chile
Santiago, Santiago Metropolitan, 8330024
Facultad de Medicina Pontificia Universidad Católica de Chile, +56-2)2354 2000, escuelamedicina@uc.cl
About this study
Official title: Incidence and Risk Factors of Postoperative Chronic Pain in Patients Who Have Undergone Hallux Valgus Surgery in the UC-Christus Clinical Hospital
The goal of this observational study is to learn about the incidence and risk factors of postoperative chronic pain in adult patients who have undergone Hallux Valgus surgery (between january 2021 and december 2024). This will be assesed through scales and medical records information.
The main questions to be answered are:
- How many patients who have undergone Hallux Valgus surgery are experiencing postoperative chronic pain.
- What factors are there present in those who do experience chronic pain after surgery.
After accepting the informed consent, participants will be asked to answer a Brief Pain Inventory Scale and a Risk Factor Questionnaire for Postoperative Chronic Pain.
- Conditions
- Postoperative Chronic Pain, Hallux Valgus Surgery
- Keywords
- Hallux Valgus surgery, postoperative chronic pain, risk factors, brief pain inventory
- Medical subject headings
- Pain, Postoperative
What is being measured
The primary outcome is the main question the study is designed to answer.
The incidence of Chronic Postoperative Pain (CPOP) following Hallux Valgus surgeries
The main outcome (chronic pain related to Hallux Valgus surgeries) will be assessed through the Brief Pain Inventory scale:
- Pain intensity: Moderate (Visual Analog Scale 5 - 7) or severe pain (Visual Analog Scale 8 - 10).
- Time: over 3 months.
- Pain description: pain is anatomically located where the Hallux Valgus surgery has taken place.
Measured: "Day 1" The outcome measure will be recorded on day 1, when the patient has agreed to the informed consent and to answer the questionnaire.
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted9 Jan 2026
- Study start21 Sep 2026 (estimated)
- Primary completion1 Dec 2026 (estimated)
- Study completion30 Dec 2026 (estimated)
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Other trials for Postoperative Chronic PainStudies of the same condition, open and under way.
- More trials run by Pontificia Universidad Catolica de ChileThe 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
- Other
- Time perspective
- Retrospective
- Enrolment
- 350 participants (estimated)
Sponsor and investigators
- Lead sponsor
- Pontificia Universidad Catolica de Chile
- Sponsor type
- University, hospital or other
- Responsible party
- Principal investigator, María Francisca Elgueta Le-beuffe, Pontificia Universidad Catolica de Chile
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT07330947
- Sponsor's protocol ID
- 240930004
- Status last verified
- Sep 2026
- First submitted
- 28 Nov 2025
- Last updated
- 18 Sep 2026
- Results posted
- No
- Data monitoring committee
- No
- FDA-regulated drug
- No
- FDA-regulated device
- No
Study at a glance
From the registry record, last updated by the sponsor on 18 Sep 2026. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Incidence and Risk Factors of Postoperative Chronic Pain in Patients Who Have Undergone Hallux Valgus Surgery in the UC-Christus Clinical Hospital
- ClinicalTrials.gov ID
- NCT07330947
- Acronym / sponsor ID
- 240930004
- Conditions
- Postoperative Chronic Pain, Hallux Valgus Surgery
- Keywords
- Hallux Valgus surgery, postoperative chronic pain, risk factors, brief pain inventory
- Study type
- Observational
- Recruitment status
- Not yet recruiting
- Enrolment
- 350 participants (estimated)
- Lead sponsor
- Pontificia Universidad Catolica de ChileUniversity, hospital or other
- Study start
- 21 Sep 2026 (estimated)
- Primary completion
- 1 Dec 2026 (estimated)
- Study completion
- 30 Dec 2026 (estimated)
- First posted
- 9 Jan 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.
The goal of this observational study is to learn about the incidence and risk factors of postoperative chronic pain in adult patients who have undergone Hallux Valgus surgery (between january 2021 and december 2024). This will be assesed through scales and medical records information.
The main questions to be answered are:
- How many patients who have undergone Hallux Valgus surgery are experiencing postoperative chronic pain.
- What factors are there present in those who do experience chronic pain after surgery.
After accepting the informed consent, participants will be asked to answer a Brief Pain Inventory Scale and a Risk Factor Questionnaire for Postoperative Chronic Pain.
Study design
- Observational model
- Other
- Time perspective
- Retrospective
Who may qualify
- Ages
- 18 years and older
- Sex
- All
- Healthy volunteers
- Not accepted
- Age groups
- Adult, Older adult
- Study population
- This is a descriptive cross-sectional study involving 350 patients who underwent Hallux Valgus surgery at a Clinical Hospital from January 2021 to April 2024. The study includes patients who underwent Hallux Valgus surgery within the UC Christus Health Network. The telephone records of patients who meet the inclusion criteria will be obtained from the Orthopedics Service database, in adherence to the UC Christus clinical data protection policy.
Key inclusion criteria (1 listed)
- Patients who underwent Hallux Valgus surgery at various centers within the UC Christus network from January 2021 to April 2024.
Key exclusion criteria (1 listed)
- Patients who had difficulty responding to follow-up from the UC Christus health network Pain Unit and/or who do not answer the telephone call
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
The incidence of Chronic Postoperative Pain (CPOP) following Hallux Valgus surgeries
Time frame: "Day 1" The outcome measure will be recorded on day 1, when the patient has agreed to the informed consent and to answer the questionnaire.
The main outcome (chronic pain related to Hallux Valgus surgeries) will be assessed through the Brief Pain Inventory scale: * Pain intensity: Moderate (Visual Analog Scale 5 - 7) or severe pain (Visual Analog Scale 8 - 10). * Time: over 3 months. * Pain description: pain is anatomically located where the Hallux Valgus surgery has taken place.
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 18 Sep 2026.
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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.
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 Postoperative Chronic Pain and Hallux Valgus Surgery, run by Pontificia Universidad Catolica de Chile at 1 site in Chile.
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 1 inclusion and 1 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 18 Sep 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 Chile. 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 María Francisca Elgueta, MD Associate Professor (+56 9 6218 7863, panchielgueta@gmail.com), or a site near the patient. AzTrials does not enrol participants or take referrals.
What does the primary outcome measure?
The incidence of Chronic Postoperative Pain (CPOP) following Hallux Valgus surgeries (time frame: "Day 1" The outcome measure will be recorded on day 1, when the patient has agreed to the informed consent and to answer the questionnaire.). 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 18 Sep 2026.