Acute Post Operative PainOutpatient UKANCT07686523
Acute Postoperative Pain in Outpatient UKA
An observational study of Acute Post Operative Pain, run by Thammasat University at 2 sites in Thailand.
Trial summary
This study determined or observe the acute postoperative between outpatient UKA and inpatient UKA. We observe the acute post op. at at 0,1, and 2. The acute post op pain compeared between two groups. Read more about this study
- Who is it for?
- Ages 45 to 75 years
- Conditions the study is for
- Acute Post Operative Pain
- How many people
- 244 participants
- Where
- 2 sitesThailand
- Study dates
- 1 Jan 2022to 1 Jan 2025
- 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 45 to 75 years
- All sexes
- No healthy volunteers
- Adult, Older adult
Study population: anteromedia osteoarthritis of the knee
Who may be able to join
- age ≥ 50 years, range of movement ≥ 90°, varus deformity ≤ 10°, and flexion contracture ≤ 10°.
Who cannot join
- age ≥ 75 years, ASA physical status score > 2, diagnosed obstructive sleep apnea, and intraoperative conversion to total knee arthroplasty due to full-thickness cartilage loss in the lateral compartment.
Trial locations and contacts
2 sites in 1 country.
Thailand2 sites
Boonchana Pongcharoen
Pathum Thani, Changwat Pathum Thani, 12120
Faculty of medicine, Thammsat university
Pathum Thani, Changwat Pathum Thani, 12120
About this study
Official title: Acute Postoperative Pain in Outpatient Versus Inpatient Unicompartmental Knee Arthroplasty: A Prospective Cohort Study
This study determined or observe the acute postoperative between outpatient UKA and inpatient UKA. We observe the acute post op. at at 0,1, and 2. The acute post op pain compeared between two groups.
Read the detailed description
The Oxford knee score, operative time, blood loss and moephine consumption also recored.
- Conditions
- Acute Post Operative Pain
- Keywords
- outpatient UKA, acute post operative pain, morphine comsumption
- Medical subject headings
- Pain, Postoperative
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 |
|---|---|---|
| Inpatient UKA | Aii patients received the stabndard surgical technique. | |
| outpatient UKA | all patients received the standard surgical technqiue |
What is being measured
The primary outcome is the main question the study is designed to answer.
acute postoperative pain
Vas for pain, 0 to 10
Measured: at day 0 (day of surgery), day 1 and day 2
Secondary outcomes (1)
Oxford knee score
0 to 48 points
Measured: OKS at 6 weeks, 3 months, 1 year, 2 years
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted7 Jul 2026
- Study start1 Jan 2022
- Primary completion24 Oct 2024
- Study completion1 Jan 2025
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Other trials for Acute Post Operative PainStudies 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
- 244 participants (actual)
Sponsor and investigators
- Lead sponsor
- Thammasat University
- Sponsor type
- University, hospital or other
- Responsible party
- Principal investigator, Boonchana Pongcharoen, Thammasat University
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT07686523
- Sponsor's protocol ID
- ThammatU
- Acronym
- Outpatient UKA
- Status last verified
- Jan 2022
- First submitted
- 23 Jun 2026
- Last updated
- 7 Jul 2026
- Results posted
- No
- Data monitoring committee
- Yes
- FDA-regulated drug
- No
- FDA-regulated device
- No
- Individual data sharing
- No: IPD will not be shared, or why a decision has not been made yet.
Study at a glance
From the registry record, last updated by the sponsor on 7 Jul 2026. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Acute Postoperative Pain in Outpatient Versus Inpatient Unicompartmental Knee Arthroplasty: A Prospective Cohort Study
- ClinicalTrials.gov ID
- NCT07686523
- Acronym / sponsor ID
- Outpatient UKA / ThammatU
- Conditions
- Acute Post Operative Pain
- Keywords
- outpatient UKA, acute post operative pain, morphine comsumption
- Study type
- Observational
- Recruitment status
- Completed
- Enrolment
- 244 participants (actual)
- Lead sponsor
- Thammasat UniversityUniversity, hospital or other
- Study start
- 1 Jan 2022 (actual)
- Primary completion
- 24 Oct 2024 (actual)
- Study completion
- 1 Jan 2025 (actual)
- First posted
- 7 Jul 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 study determined or observe the acute postoperative between outpatient UKA and inpatient UKA. We observe the acute post op. at at 0,1, and 2. The acute post op pain compeared between two groups.
Detailed description
The Oxford knee score, operative time, blood loss and moephine consumption also recored.
Study design
- Observational model
- Cohort
- Time perspective
- Prospective
- Number of arms
- 2
| Arm | Type | Receives |
|---|---|---|
| Inpatient UKA | – | –Aii patients received the stabndard surgical technique. |
| outpatient UKA | – | –all patients received the standard surgical technqiue |
Who may qualify
- Ages
- 45 to 75 years
- Sex
- All
- Healthy volunteers
- Not accepted
- Age groups
- Adult, Older adult
- Study population
- anteromedia osteoarthritis of the knee
Key inclusion criteria (1 listed)
- age ≥ 50 years, range of movement ≥ 90°, varus deformity ≤ 10°, and flexion contracture ≤ 10°.
Key exclusion criteria (1 listed)
- age ≥ 75 years, ASA physical status score > 2, diagnosed obstructive sleep apnea, and intraoperative conversion to total knee arthroplasty due to full-thickness cartilage loss in the lateral compartment.
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
acute postoperative pain
Time frame: at day 0 (day of surgery), day 1 and day 2
Vas for pain, 0 to 10
1 secondary outcome
Oxford knee score
Time frame: OKS at 6 weeks, 3 months, 1 year, 2 years
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 7 Jul 2026.
- Individual participant dataSharing planned: No. IPD will not be shared, or why a decision has not been made yet.
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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.
2 sites in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
An observational study of Acute Post Operative Pain, run by Thammasat University at 2 sites in Thailand.
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: finished, as of the sponsor's last update on 7 Jul 2026. Status can change between updates, so confirm with the study contact before making plans.
Where is the study taking place?
The record lists 2 sites in Thailand. 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?
acute postoperative pain (time frame: at day 0 (day of surgery), day 1 and day 2). 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 7 Jul 2026.