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Validity and Reliability of Autocad Software Assessment of JPS in PFPS

The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it has been evaluated by the U.S. Federal Government. Read our disclaimer for details. Identifier: NCT03685812
Recruitment Status : Completed
First Posted : September 26, 2018
Last Update Posted : April 1, 2019
Information provided by (Responsible Party):
Karima Abdelaty Hassan, Cairo University

Brief Summary:

The overall aim of the study is to assess the reliability and validity of Autocad software to measure JPS in PFPS, especially:

  1. To assess the intra-tester and between day reliability of measurement of JPS using Autocad software.
  2. To assess the validity of these measurements against those found during an IKD.

Condition or disease Intervention/treatment
Patellofemoral Pain Syndrome Diagnostic Test: Autocad software

Detailed Description:

Patellofemoral pain syndrome (PFPS) is a common painful musculoskeletal condition that affects physically active young adults and adolescents.

Joint position sense (JPS) is considered as a component of proprioception as it provides the clinician with information regarding the accuracy of movement as well as its relationship with movement performance and injuries. Therefore researchers use advanced instruments as 3 D video systems and isokinetic dynamometer. Since these instruments are less portable and expensive, therefore researchers used another method to evaluate JPS using high precision software using video analysis and markers in the joints. Unfortunately, video analysis requires difficult and time-consuming tasks and that this slow the evaluation process.

Although immediate feedback could help physiotherapists and athletic trainers to monitor athletes and make decisions during the training session and the rehabilitation process, such immediacy is not available for proprioceptive tests in field situations. Autocad software is available and inexpensive and provides immediate feedback

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Study Type : Observational
Actual Enrollment : 38 participants
Observational Model: Other
Time Perspective: Cross-Sectional
Official Title: Validity and Reliability of Autocad Software Assessment of Joint Position Sense in Patellofemoral Pain Syndrome
Actual Study Start Date : September 25, 2018
Actual Primary Completion Date : February 1, 2019
Actual Study Completion Date : February 1, 2019

Group/Cohort Intervention/treatment
patients with patellofemoral pain syndrome , Auto Cad software
Patients referred with a confirmed diagnosis of patellofemoral pain syndrome, with a visual analogue scale of more than 3. Anterior or retropatellar knee pain from at least 2 of the following Activities : (1) prolonged sitting; (2) stair climbing; (3) squatting; (4) running; (5) kneeling; and (6) hopping/jumping.
Diagnostic Test: Autocad software
The participants will be prepared for image-capture data collection by putting four squared markers on leg and thigh.Each subject will extend his/her leg and make two angles from the resting position (90º) to the full extension, photos will be taken. The tested leg passively moved by the researcher through 20° to 60° of knee extension, the participant will be instructed to actively move that leg to the target angle and hold it in this position another photograph will be taken. The angles will be measured using the AutoCAD software. Knee JPS measurements will also be collected using an IKD by same steps
Other Name: Isokinetic system

Primary Outcome Measures :
  1. Concurrent validity of Autocad software [ Time Frame: one day ]
    correlation between absolute angular error of Autocad software and isokinetic system

Secondary Outcome Measures :
  1. Intrarater reliability of [ Time Frame: 48 hours ]
    same investigator will repeat joint positsion sense by Autocad software

Information from the National Library of Medicine

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Ages Eligible for Study:   18 Years to 35 Years   (Adult)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   No
Sampling Method:   Non-Probability Sample
Study Population
thirty-eight patients(males and females) with PFPS will be recruited from the outpatient clinic of the faculties of Physical Therapy, Cairo University, Egypt.

inclusion criteria:

  1. Anterior or retropatellar knee pain from at least 2 of the following Activities : (1) prolonged sitting; (2) stair climbing; (3) squatting; (4) running; (5) kneeling; (6) hopping/jumping; (7) kneel sitting
  2. Insidious onset of symptoms unrelated to a traumatic incident.
  3. Age of the subject 18-35 years to limit the possibility that PFPS over age 35 may have been complicated by arthritic changes, and also the subjects should have closed epiphyseal growth plates.
  4. Patient with chronic PFPS (pain > 3 months)

Exclusion Criteria:

  1. Meniscal or other intraarticular pathologic conditions; cruciate or collateral ligament involvement.
  2. A history of traumatic patellar subluxation or dislocation.
  3. Previous surgery in the knee, ankle and hip joints.
  4. Knee, ankle and hip joints osteoarthritis.
  5. athletes weren't included.


Information from the National Library of Medicine

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.

Please refer to this study by its identifier (NCT number): NCT03685812

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Faculty of Physical therapy, Cairo University
Giza, Egypt, egypt
Sponsors and Collaborators
Cairo University
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Principal Investigator: karima A Hassan Cairo University

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Responsible Party: Karima Abdelaty Hassan, principal investigator, Cairo University Identifier: NCT03685812     History of Changes
Other Study ID Numbers: patellofemoral pain syndrome
First Posted: September 26, 2018    Key Record Dates
Last Update Posted: April 1, 2019
Last Verified: March 2019
Individual Participant Data (IPD) Sharing Statement:
Plan to Share IPD: No

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Studies a U.S. FDA-regulated Drug Product: No
Studies a U.S. FDA-regulated Device Product: No

Keywords provided by Karima Abdelaty Hassan, Cairo University:
Patellofemoral Pain Syndrome
Autocad software
position sense

Additional relevant MeSH terms:
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Somatoform Disorders
Patellofemoral Pain Syndrome
Pathologic Processes
Mental Disorders
Joint Diseases
Musculoskeletal Diseases