Validation of an Online Knee Pain Map and Questionnaire: A Probabilistic Diagnostic Tool

NCT01492244 | Terminated DMC

• 1 other identifier: 11-003024
• Study Type: observational
• Target: 1,000
• Locations: 1 country
• Sites: 1

Brief Summary

"Blank" has designed a medical diagnostic system in the form of an unvalidated online questionnaire and drawing tool used to describe and identify the location of knee pain, respectively. A component of the survey includes the patient inputting their diagnosis as the etiology of their knee pain. Dr. Ivo Dinov's team has used the data from 100,000 patient surveys to construct a probabilistic model to diagnose those who fill out the questionnaire and knee pain map but do not have a diagnosis. However, the validity of the online survey and the accuracy of the probabilistic model has not been confirmed in patients with known diagnoses. Therefore, the purpose of this study will be to recruit patients with knee pain at UCLA orthopedic clinics to complete the online survey which will then be applied to the probabilistic model to output possible diagnoses. The results will be compared to the actual diagnosis assigned to that patient in the clinic. If validated, the online survey may serve as a tool for diagnostic and research purposes.

Conditions

Knee Pain

Keywords

Knee pain; map; questionnaire; survey

Outcome Measures

Primary Outcomes (1)

• The ability of the UCLA modeling software to predict diagnosis based on questionnaire answers

  UCLA has developed modeling software that may be accurate at predicting diagnoses depending on the answers given by patients to an online questionnaire and knee pain drawing map. The accuracy of the software has not been tested or validated. This study will determine the accuracy of this software by comparing UCLA orthopedic surgeon input diagnosis to that output by the modeling software following completion of the questionnaire by study participants.

  One year

Secondary Outcomes (1)

• Accuracy of patient input diagnosis compared to orthopedic surgeon diagnosis

  One Year

Study Arms (1)

Patients with knee pain and a known diagnosis

Eligibility Criteria

• Age: 18 Years+
• Sex: all
• Healthy Volunteers: No
• Age Groups: Adult (18-64), Older Adult (65+)
• Sampling Method: Non-Probability Sample

Study Population

Patients older than 18 years old with knee pain that contains a known diagnosis for their pain.

You may qualify if:

• patients with knee pain and a known diagnosis for their pain
• patients older than 18 years old

You may not qualify if:

• patients that are unable or unwilling to complete the online survey.
• patients who do not have a diagnosis for their knee pain

Sponsors & Collaborators

• Brock Foster: lead

Study Sites (1)

UCLA

Los Angeles, California, 90095, United States

Location

Study Design

• Study Type: observational
• Observational Model: COHORT
• Time Perspective: PROSPECTIVE
• Sponsor Type: OTHER
• Responsible Party: SPONSOR INVESTIGATOR
• PI Title: Mr.

Study Record Dates

• First Submitted: December 6, 2011
• First Posted: December 14, 2011
• Study Start: December 1, 2011
• Last Updated: March 27, 2012

Record last verified: 2012-03

Locations

US (1)