Patellofemoral Pain SyndromeNCT00173147
Morphology of the VMO in Patients With PFPS and Healthy Young Adults--A Sonographic Study
An observational study of Patellofemoral Pain Syndrome, run by National Taiwan University Hospital at 1 site in Taiwan.
Trial summary
Background：Patellofemoral pain syndrome（PFPS） is a common knee disorder characterized by anterior or retropatellar pain associated with activities that load the patellofemoral joint. Previous studies reveal that the vastus medialis obliquus（VMO） is an important dynamic medial stabilizer of the patellar. Read more about this study
- Who is it for?
- Ages 15 to 50 yearsHealthy volunteers can take part
- Conditions the study is for
- Patellofemoral Pain Syndrome
- How many people
- Not given
- Where
- 1 siteTaiwan
- Study dates
- May 2005to not given
- 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 15 to 50 years
- All sexes
- Healthy volunteers accepted
- Child, Adult
Who may be able to join
- under 50 years old.
- Have a diagnosis of PFPS.
Who cannot join
- Diagnosis other than PFPS，such as meniscal lesion, ligamentous instability ,patellar tendon pathology, traction apophysitis, radiation pain, referred pain, ect.
- Knee operation within three month.
- X-ray findings (1)joint space narrowing (2)osteophyte formation
Trial locations and contacts
1 site in 1 country.
Taiwan1 site, 1 recruiting
- Recruiting
NTUH
Taipei, 100
Hsin-Yu Mao, Master, 02-23123456 ext. 7556, babymmeeww@yahoo.com.tw
About this study
Official title: Morphology of the Vastus Medialis Obliquus in Patients With Patellofemoral Pain Syndrome and Healthy Young Adults --A Sonographic Study
Background：Patellofemoral pain syndrome（PFPS） is a common knee disorder characterized by anterior or retropatellar pain associated with activities that load the patellofemoral joint. Previous studies reveal that the vastus medialis obliquus（VMO） is an important dynamic medial stabilizer of the patellar. Insufficiency of the VMO leads to lateral shift of the patella and the increases the patellofemoral contact force. An in vitro study conducted by Hubbard JK. et al. claimed that there were no significant relationship between several morphologic characteristics of the VMO and the extent of patellofemoral joint deterioration. We consider that the condition might be different in vivo, so we chose ultrasonogrphy as the measurement tool to examine the morphology of the VMO in PFPS patients and healthy controls. Purpose：To determine if there are significant differences in several morphologic parameters of the VMO between patients with PFPS and healthy controls under 50. Method：31 PFPS patients and 31 matched healthy adults under 50 were recruited for the study. The HDI 5000 ultrasonography machine was used to evaluate morphologic parameters of the VMO, including the percent of patella attachment, fiber angle, the volume attached to the patella, and the change of shape of the VMO.
- Conditions
- Patellofemoral Pain Syndrome
- Medical subject headings
- Patellofemoral Pain Syndrome
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted15 Sep 2005 (estimated)
- Study startMay 2005
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Other trials for Patellofemoral Pain SyndromeStudies of the same condition, open and under way.
- More trials run by National Taiwan University 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
- Time perspective
- Retrospective
Sponsor and investigators
- Lead sponsor
- National Taiwan University Hospital
- Sponsor type
- University, hospital or other
- Investigators
- Mei-Hwa Jan, Master, Study chair, NTU department of physical therapy
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT00173147
- Sponsor's protocol ID
- 9461700502
- Status last verified
- Apr 2005
- First submitted
- 12 Sep 2005
- Last updated
- 27 Oct 2008
- Results posted
- No
Study at a glance
From the registry record, last updated by the sponsor on 27 Oct 2008. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Morphology of the Vastus Medialis Obliquus in Patients With Patellofemoral Pain Syndrome and Healthy Young Adults --A Sonographic Study
- ClinicalTrials.gov ID
- NCT00173147
- Acronym / sponsor ID
- 9461700502
- Conditions
- Patellofemoral Pain Syndrome
- Study type
- Observational
- Recruitment status
- Unknown status
- Lead sponsor
- National Taiwan University HospitalUniversity, hospital or other
- Study start
- May 2005
- First posted
- 15 Sep 2005 (estimated)
- 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.
Background：Patellofemoral pain syndrome（PFPS） is a common knee disorder characterized by anterior or retropatellar pain associated with activities that load the patellofemoral joint. Previous studies reveal that the vastus medialis obliquus（VMO） is an important dynamic medial stabilizer of the patellar. Insufficiency of the VMO leads to lateral shift of the patella and the increases the patellofemoral contact force. An in vitro study conducted by Hubbard JK. et al. claimed that there were no significant relationship between several morphologic characteristics of the VMO and the extent of patellofemoral joint deterioration. We consider that the condition might be different in vivo, so we chose ultrasonogrphy as the measurement tool to examine the morphology of the VMO in PFPS patients and healthy controls. Purpose：To determine if there are significant differences in several morphologic parameters of the VMO between patients with PFPS and healthy controls under 50. Method：31 PFPS patients and 31 matched healthy adults under 50 were recruited for the study. The HDI 5000 ultrasonography machine was used to evaluate morphologic parameters of the VMO, including the percent of patella attachment, fiber angle, the volume attached to the patella, and the change of shape of the VMO.
Study design
- Time perspective
- Retrospective
Who may qualify
- Ages
- 15 to 50 years
- Sex
- All
- Healthy volunteers
- Accepted
- Age groups
- Child, Adult
Key inclusion criteria (2 listed)
- under 50 years old.
- Have a diagnosis of PFPS.
Key exclusion criteria (3 listed)
- Diagnosis other than PFPS，such as meniscal lesion, ligamentous instability ,patellar tendon pathology, traction apophysitis, radiation pain, referred pain, ect.
- Knee operation within three month.
- X-ray findings (1)joint space narrowing (2)osteophyte formation
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
Not reported in the source record.
Results and safety
Results are not available in the source record.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 27 Oct 2008.
Related trials for Patellofemoral Pain Syndrome
Recruiting
Effects of Telerehabilitation Versus Supervised Rehabilitation Protocol on Pain, Range of Motion and Functional Recovery in Patients With Patellofemoral Pain Syndrome.
Patello Femoral Pain Syndrome
RecruitingObservational study
MRI Study of Musculoskeletal Function
Abnormalities, Imaging
Not yet recruiting
Comparison of High-Intensity and Conventional Physical Therapy in Musculoskeletal Disorders
Low Back Pain, Radicular Syndrome
Active, not recruiting
Stabilization vs Corrective Exercise in PFP
Patellofemoral Pain Syndrome
Not yet recruiting
Effectiveness of Selected Traditional Chinese Medicine Topical Agents on Long Distance Runner Versus Exercise Therapy as Control for Patellofemoral Pain Syndrome
Patellar Femoral Syndrome, TCMO (Ng's Prescription)
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.
Mei-Hwa Jan, Master study chair
NTU department of physical therapy
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 Patellofemoral Pain Syndrome, run by National Taiwan University Hospital at 1 site in Taiwan.
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 2 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: status not confirmed, as of the sponsor's last update on 27 Oct 2008. 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 Taiwan. 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?
Results are not available in the source record.
How can a doctor refer a patient or contact the research team?
Each site lists its own contact: choose the nearest one under Trial locations. AzTrials does not enrol participants or take referrals.
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 27 Oct 2008.