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Morphology of the VMO in Patients With PFPS and Healthy Young Adults--A Sonographic Study

Sponsor
National Taiwan University Hospital (Other)
Overall Status
Unknown status
CT.gov ID
NCT00173147
Collaborator
(none)
1
Location

Study Details

Study Description

Brief 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. 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.

Condition or Disease Intervention/Treatment Phase

    Study Design

    Study Type:
    Observational
    Time Perspective:
    Retrospective
    Official Title:
    Morphology of the Vastus Medialis Obliquus in Patients With Patellofemoral Pain Syndrome and Healthy Young Adults --A Sonographic Study
    Study Start Date :
    May 1, 2005

    Outcome Measures

    Primary Outcome Measures

      Eligibility Criteria

      Criteria

      Ages Eligible for Study:
      15 Years to 50 Years
      Sexes Eligible for Study:
      All
      Accepts Healthy Volunteers:
      Yes
      Inclusion Criteria:

      1. under 50 years old.

      2. Have a diagnosis of PFPS.

      Exclusion Criteria:

      1. Diagnosis other than PFPS，such as meniscal lesion, ligamentous instability ,patellar tendon pathology, traction apophysitis, radiation pain, referred pain, ect.

      2. Knee operation within three month.

      3. X-ray findings (1)joint space narrowing (2)osteophyte formation

      Contacts and Locations

      Locations

      Site City State Country Postal Code
      1 NTUH Taipei Taiwan 100

      Sponsors and Collaborators

      • National Taiwan University Hospital

      Investigators

      • Study Chair: Mei-Hwa Jan, Master, NTU department of physical therapy

      Study Documents (Full-Text)

      None provided.

      More Information

      Publications

      None provided.
      Responsible Party:
      , ,
      ClinicalTrials.gov Identifier:
      NCT00173147
      Other Study ID Numbers:
      • 9461700502
      First Posted:
      Sep 15, 2005
      Last Update Posted:
      Oct 27, 2008
      Last Verified:
      Apr 1, 2005
      Additional relevant MeSH terms:
      Patellofemoral Pain Syndrome
      Syndrome

      Study Results

      No Results Posted as of Oct 27, 2008