Lateral Patellar Compression SyndromeNCT04958603
The Clinical Effect of Different Lateral Retinaculum Relaxation Methods in the Treatment of LPCS
An observational study of Lateral Patellar Compression Syndrome, run by Peking University Third Hospital at 1 site in China.
Trial summary
To observe the comparison of the clinical effects of two different ways of loosening the lateral support band under arthroscopy to treat lateral patella excessive compression syndrome. Read more about this study
- Who is it for?
- Any age
- Conditions the study is for
- Lateral Patellar Compression Syndrome
- What is being tested?
- "L" type release surgery
- Type of treatment
- Surgery or procedure
- How many people
- 64 participants
- Where
- 1 siteChina
- Study dates
- 1 Apr 2020to 1 Nov 2020
- 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 Any age
- All sexes
- No healthy volunteers
- Child, Adult, Older adult
Study population: From September 2004 to January 2019, patients with lateral patella overcrowding syndrome treated by deputy chief physician Yang Yuping of the Department of Sports Medicine, Peking University Third Hospital
Who may be able to join
- From September 2004 to January 2019, patients with lateral patella overcrowding syndrome treated by deputy chief physician Yang Yuping of the Department of Sports Medicine, Peking University Third Hospital
Who cannot join
- From September 2004 to January 2019, patients with lateral patella overcrowding syndrome treated by deputy chief physician Yang Yuping of the Department of Sports Medicine, Peking University Third Hospital
Trial locations and contacts
1 site in 1 country.
China1 site
Peking Univerisity Third Hospital
Beijing, Beijing Municipality, 100191
About this study
Official title: The Clinical Effect of Different Lateral Retinaculum Relaxation Methods in the Treatment of Lateral Patellar Compression Syndrome
To observe the comparison of the clinical effects of two different ways of loosening the lateral support band under arthroscopy to treat lateral patella excessive compression syndrome.
Read the detailed description
To analyze the surgical conditions of 64 patients with lateral patella excessive compression syndrome who were surgically treated by Deputy Chief Physician Yang Yuping of the Department of Sports Medicine, Peking University Third Hospital from September 2004 to January 2019. Among them, 24 early cases used the traditional proximal release of the lateral retinaculum (traditional surgical group), and recently 40 cases, after learning from the surgical experience of the early cases, switched to the lateral release of the lateral retinaculum, that is, "L" type Release (new surgery group). The visual analog scale (VAS), Lysholm score, and IKDC knee function subjective evaluation scale (IKDC) score were performed before and after the operation. By analyzing the knee movement scores of patients before and after surgery, the efficacy of the above two operations was judged, and the two groups of postoperative scores were evaluated.
- Conditions
- Lateral Patellar Compression Syndrome
- Being tested
- "L" type release surgery
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
"L" type release surgeryProcedure or surgery
Lateral release of the lateral support belt
| Study group | Role | What they receive |
|---|---|---|
| Traditional surgery group | Traditionally loosen the lateral support belt proximally | |
| New surgery group | Laterally loosen the outer support belt, that is, "L"-shaped loosen Receives: Procedure: "L" type release surgery |
What is being measured
The primary outcome is the main question the study is designed to answer.
Visual analogue scale (VAS)
VAS is used to evaluate knee function. The higher the score of VAS, the better the recovery of knee function
Measured: Six months after surgery
(International Knee Documentation Committee) IKDC knee function subjective evaluation form score
IKDC score is used to evaluate knee function. The higher the score of IKDC score, the better the recovery of knee function
Measured: Six months after surgery
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted12 Jul 2021
- Study start1 Apr 2020
- Primary completion1 May 2020
- Study completion1 Nov 2020
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Other trials for Lateral Patellar Compression SyndromeStudies of the same condition, open and under way.
- More trials run by Peking University Third 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 only
- Time perspective
- Retrospective
- Enrolment
- 64 participants (actual)
Sponsor and investigators
- Lead sponsor
- Peking University Third Hospital
- Sponsor type
- University, hospital or other
- Responsible party
- Sponsor
- Investigators
- yuping yang, Study chair, Peking University Third Hospital
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT04958603
- Sponsor's protocol ID
- M2020506
- Status last verified
- Jun 2021
- First submitted
- 27 Jun 2021
- Last updated
- 12 Jul 2021
- 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 12 Jul 2021. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- The Clinical Effect of Different Lateral Retinaculum Relaxation Methods in the Treatment of Lateral Patellar Compression Syndrome
- ClinicalTrials.gov ID
- NCT04958603
- Acronym / sponsor ID
- M2020506
- Conditions
- Lateral Patellar Compression Syndrome
- Study type
- Observational
- Recruitment status
- Completed
- Enrolment
- 64 participants (actual)
- Lead sponsor
- Peking University Third HospitalUniversity, hospital or other
- Study start
- 1 Apr 2020 (actual)
- Primary completion
- 1 May 2020 (actual)
- Study completion
- 1 Nov 2020 (actual)
- First posted
- 12 Jul 2021 (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.
To observe the comparison of the clinical effects of two different ways of loosening the lateral support band under arthroscopy to treat lateral patella excessive compression syndrome.
Detailed description
To analyze the surgical conditions of 64 patients with lateral patella excessive compression syndrome who were surgically treated by Deputy Chief Physician Yang Yuping of the Department of Sports Medicine, Peking University Third Hospital from September 2004 to January 2019. Among them, 24 early cases used the traditional proximal release of the lateral retinaculum (traditional surgical group), and recently 40 cases, after learning from the surgical experience of the early cases, switched to the lateral release of the lateral retinaculum, that is, "L" type Release (new surgery group). The visual analog scale (VAS), Lysholm score, and IKDC knee function subjective evaluation scale (IKDC) score were performed before and after the operation. By analyzing the knee movement scores of patients before and after surgery, the efficacy of the above two operations was judged, and the two groups of postoperative scores were evaluated.
Study design
- Observational model
- Case only
- Time perspective
- Retrospective
- Number of arms
- 2
| Arm | Type | Receives |
|---|---|---|
| Traditional surgery group | – | –Traditionally loosen the lateral support belt proximally |
| New surgery group | – | Procedure: "L" type release surgeryLaterally loosen the outer support belt, that is, "L"-shaped loosen |
Who may qualify
- Sex
- All
- Healthy volunteers
- Not accepted
- Age groups
- Child, Adult, Older adult
- Study population
- From September 2004 to January 2019, patients with lateral patella overcrowding syndrome treated by deputy chief physician Yang Yuping of the Department of Sports Medicine, Peking University Third Hospital
Key inclusion criteria (1 listed)
- From September 2004 to January 2019, patients with lateral patella overcrowding syndrome treated by deputy chief physician Yang Yuping of the Department of Sports Medicine, Peking University Third Hospital
Key exclusion criteria (1 listed)
- From September 2004 to January 2019, patients with lateral patella overcrowding syndrome treated by deputy chief physician Yang Yuping of the Department of Sports Medicine, Peking University Third Hospital
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 |
|---|---|---|
| "L" type release surgeryLateral release of the lateral support belt | Procedure or surgery | New surgery group |
Primary outcome
Visual analogue scale (VAS)
Time frame: Six months after surgery
VAS is used to evaluate knee function. The higher the score of VAS, the better the recovery of knee function
(International Knee Documentation Committee) IKDC knee function subjective evaluation form score
Time frame: Six months after surgery
IKDC score is used to evaluate knee function. The higher the score of IKDC score, the better the recovery of knee function
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 Jul 2021.
- Individual participant dataSharing planned: No
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.
yuping yang study chair
Peking University Third 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 Lateral Patellar Compression Syndrome, run by Peking University Third Hospital at 1 site in China.
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 12 Jul 2021. 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 China. 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?
Visual analogue scale (VAS) (time frame: Six months after surgery). The study lists 2 primary outcomes in all. 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 Jul 2021; AzTrials last refreshed its copy on 6 Nov 2026.