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CompletedNCT03685812Updated Apr 1, 2019

Validity and Reliability of Autocad Software Assessment of JPS in PFPS

An observational study in Patellofemoral Pain Syndrome, sponsored by Cairo University. Completed at 1 site in Egypt. Open to participants aged 18 Years to 35 Years. Per ClinicalTrials.gov, last updated 2019-04-01.

Sponsored by Cairo University · Observational

Study type
Observational
Model
Other
Time perspective
Cross-sectional
Enrollment
38
Ages
18 Years to 35 Years
Sex
All
01

Study 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.
Read the 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

02

Conditions studied

  • Patellofemoral Pain Syndrome

Keywords

  • Patellofemoral Pain Syndrome
  • Autocad software
  • position sense
  • validity
  • reliability
03

In context

Patellofemoral Pain Syndrome

295 studies on the registry are indexed under Patellofemoral Pain Syndrome; 75 are open to participants now.

This study's enrollment of 38 is below the median of 43 across 48 observational studies indexed under Patellofemoral Pain Syndrome.

Browse Patellofemoral Pain Syndrome studies →

Lead sponsor

Cairo University is the lead sponsor of 4,780 studies on the registry; 1,427 are open to participants now.

Of its 36 completed or terminated interventional studies of FDA-regulated products, 5 (14%) have results posted.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
18 Years to 35 Years
Sexes eligible
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

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.

    -

05

Study design

Observational model
Other
Time perspective
Cross-sectional
Enrollment
38 participants (actual)
Patient registry
No

Groups and cohorts

  • 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

Interventions

  • Diagnostic testAutocad 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

    Also known as: Isokinetic system

06

What researchers measure

Primary outcomes

  1. Concurrent validity of Autocad software

    correlation between absolute angular error of Autocad software and isokinetic system

    Time frame: one day

Secondary outcomes

  1. Intrarater reliability of

    same investigator will repeat joint positsion sense by Autocad software

    Time frame: 48 hours

07

Study locations

1 site
  • Faculty of Physical therapy, Cairo University
    Giza, egypt, Egypt
08

References and documents

Publications

  • Akseki D, Akkaya G, Erduran M, Pinar H. [Proprioception of the knee joint in patellofemoral pain syndrome]. Acta Orthop Traumatol Turc. 2008 Nov-Dec;42(5):316-21. doi: 10.3944/aott.2008.316. Turkish. PubMed 19158451 ↗
  • Baker V, Bennell K, Stillman B, Cowan S, Crossley K. Abnormal knee joint position sense in individuals with patellofemoral pain syndrome. J Orthop Res. 2002 Mar;20(2):208-14. doi: 10.1016/S0736-0266(01)00106-1. PubMed 11918299 ↗
  • Drouin JM, Valovich-mcLeod TC, Shultz SJ, Gansneder BM, Perrin DH. Reliability and validity of the Biodex system 3 pro isokinetic dynamometer velocity, torque and position measurements. Eur J Appl Physiol. 2004 Jan;91(1):22-9. doi: 10.1007/s00421-003-0933-0. Epub 2003 Sep 24. PubMed 14508689 ↗
  • Relph N, Herrington L. Criterion-related validity of knee joint-position-sense measurement using image capture and isokinetic dynamometry. J Sport Rehabil. 2015 Jan 13;24(1):2013-0119. doi: 10.1123/jsr.2013-0119. Print 2015 Feb 1. PubMed 25310567 ↗
  • Mir SM, Hadian MR, Talebian S, Nasseri N. Functional assessment of knee joint position sense following anterior cruciate ligament reconstruction. Br J Sports Med. 2008 Apr;42(4):300-3. doi: 10.1136/bjsm.2007.044875. PubMed 18390774 ↗
  • Bolgla LA, Boling MC. An update for the conservative management of patellofemoral pain syndrome: a systematic review of the literature from 2000 to 2010. Int J Sports Phys Ther. 2011 Jun;6(2):112-25. PubMed 21713229 ↗

Individual participant data

Plan to share: No

09

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Apr 1, 2019, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT03685812
Lead sponsor
Cairo University
Responsible party
Karima Abdelaty Hassan (principal investigator, Cairo University) — Principal investigator
First posted
Sep 26, 2018
Start date
Sep 25, 2018
Primary completion
Feb 1, 2019
Completion
Feb 1, 2019
Last update
Apr 1, 2019

Study contacts

karima A Hassan
principal investigator · Cairo University

Oversight

Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

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