Novel Method for Diagnosing Lateral Patellar Compression Syndrome Using X-ray: a Retrospective Case-Control Study
NCT ID: NCT04454593
Last Updated: 2020-07-01
Study Results
The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.
Basic Information
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COMPLETED
87 participants
OBSERVATIONAL
2020-03-22
2020-05-22
Brief Summary
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Detailed Description
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Purpose: To investigate whether patellar axial radiography of the lateral patellar curvature angle (LPCA) of knee in 30° flexion can diagnose LPCS.
Methods: We enrolled 87 patients between 2016 and 2019 and divided them as per diagnosis into three groups of 29 each: LPCS, patellar dislocation (PD, control), and meniscus tear (MT, negative control) groups. A senior radiologist and the chief physician of sports medicine examined their patellar axial radiographs of the knee in 30° flexion using a computer imaging system, measuring LPCA, PTA, and CA. Univariate analysis of variance and Kruskal-Wallis H test were used to compare measurement data with normal distribution and non-normal distribution, respectively. Bonferroni correction was used to analyze different indicators for different groups. The area under the curve (AUC) was calculated to verify the value of LPCA in initial diagnosis of LPCS.
Conditions
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Study Design
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CASE_CONTROL
RETROSPECTIVE
Study Groups
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Lateral patellar compression syndrome
Patients diagnosed with lateral patellar compression syndrome between February 2016 and April 2019
no intervention
This is an observation study,with no intervention
patellar dislocation
Patients diagnosed with patellar dislocation between February 2016 and April 2019
no intervention
This is an observation study,with no intervention
meniscus tear
Patients diagnosed with meniscus tear between February 2016 and April 2019
no intervention
This is an observation study,with no intervention
Interventions
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no intervention
This is an observation study,with no intervention
Eligibility Criteria
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Inclusion Criteria
Exclusion Criteria
ALL
No
Sponsors
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Peking University Third Hospital
OTHER
Responsible Party
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Principal Investigators
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Yang Yu-ping
Role: STUDY_CHAIR
Peking University Third Hospital
Locations
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Peking University Third Hospital
Beijing, Beijing Municipality, China
Countries
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Other Identifiers
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M2019464
Identifier Type: -
Identifier Source: org_study_id
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