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The Role of Quadriceps Contraction in Patellar Repositioning - a Computed Tomography Study

NCT00760136 · Status: UNKNOWN · Type: OBSERVATIONAL · Enrollment: 150

Last updated 2008-10-24

No results posted yet for this study

Summary

Background Previous studies have a great discrepancy concerning the effects of quadriceps contraction on patellar lateral displacement and tilt in patients with patellofemoral pain syndrome. This discrepancy may be caused by lack of information regarding to classifications of patellofemoral alignment under quadriceps relaxed. We hypothesized quadriceps contraction has different effects on each type of patellofemoral malalignment.

Methods The investigators expect to recruit 150 subjects with patellofemoral pain syndrome to participate in this study. All patients underwent computed tomography imaging of symptomatic knees, with and without quadriceps muscle contraction in 0°, 15° and 30° of knee flexion. Patellar lateral condyle index and patellar tilt angles of Sasaki and modified Fulkerson were measured to investigate the effect of quadriceps contraction on patellar repositioning.

Conditions

  • Patellofemoral Pain Syndrome

Interventions

PROCEDURE

Computed Tomography

CT imaging of bilateral knee

Sponsors & Collaborators

  • National Taiwan University Hospital

    lead OTHER

Principal Investigators

  • Mai-Hwa Jan, MS · Graduate institute of physical therapy

Eligibility

Min Age
20 Years
Max Age
50 Years
Sex
ALL
Healthy Volunteers
No

Timeline & Regulatory

Start
2006-08-31
Completion
2009-07-31

Countries

  • Taiwan

Study Locations

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Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT00760136 on ClinicalTrials.gov