Validity and Reliability of Two Methods for Assessing Knee Joint Position Sense

Validity and Reliability of Two Methods for Assessing Knee Joint Position Sense in Patients With Patellofemoral Pain Syndrome

The participants will be prepared for image-capture data collection by putting four squared markers, each 4 cm in diameter, will be attached to their leg at three locations while the subject in this position: (1) proximal to a quarter of the distance along a line joining the greater trochanter to the lateral knee joint line, (2) over the neck of the fibula, (3) over the proximal part of the lateral malleolus. A fourth marker will be attached over the iliotibial tract adjacent to the superior border of the patella when the subject in a sitting position.

Each participant will seat on the end of an orthopedic assessment plinth and blindfolded .

Each subject will be asked to extend his/her leg and make two angles arbitrarily from the resting position (90º) to the full extension. Photos will be taken, while they keep their leg at each position for five seconds.The bubble inclinometer will be attached to the patient leg at the resting position 90 º knee flexion.

The tested leg will be passively moved by the researcher through 20° to 60° of knee extension from a starting knee angle of 90° to a target angle which will be measured by the bubble inclinometer , the participant then actively held the leg in this position for 5 second.

A photograph of the leg in the target position will be taken using the camera which will be positioned 185 cm from the subject and 65 cm from the ground The leg will then be passively returned to the starting angle, and 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, and the participant will be instructed to move the leg back to the starting position , the process will be repeated 3 times for each target angle with rest time 5 seconds between shots.

After completing the procedure for all subjects, the test and replicated angles will be measured using the AutoCAD software and determine the center of the markers.

Also , same angles will be measured via clinometer smart phone application in those patients to assess its validityand reliability where the participant will hold the leg for five seconds for each angle where this process will be reapeated for three times for each angle.

Study Overview

• Status: Not yet recruiting
• Conditions: Patellofemoral Pain Syndrome
• Intervention / Treatment: Device: smart phone application and AutoCAD software

Detailed Description

The participants will be prepared for image-capture data collection by putting four squared markers, each 4 cm in diameter, will be attached to their leg at three locations while the subject in this position: (1) proximal to a quarter of the distance along a line joining the greater trochanter to the lateral knee joint line, (2) over the neck of the fibula, (3) over the proximal part of the lateral malleolus. A fourth marker will be attached over the iliotibial tract adjacent to the superior border of the patella when the subject in a sitting position.

Each participant will seat on the end of an orthopedic assessment plinth and blindfolded .

Each subject will be asked to extend his/her leg and make two angles arbitrarily from the resting position (90º) to the full extension. Photos will be taken, while they keep their leg at each position for five seconds.The bubble inclinometer will be attached to the patient leg at the resting position 90 º knee flexion.

The tested leg will be passively moved by the researcher through 20° to 60° of knee extension from a starting knee angle of 90° to a target angle which will be measured by the bubble inclinometer , the participant then actively held the leg in this position for 5 second.

A photograph of the leg in the target position will be taken using the camera which will be positioned 185 cm from the subject and 65 cm from the ground The leg will then be passively returned to the starting angle, and 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, and the participant will be instructed to move the leg back to the starting position , the process will be repeated 3 times for each target angle with rest time 5 seconds between shots.

After completing the procedure for all subjects, the test and replicated angles will be measured using the AutoCAD software and determine the center of the markers.

Also , same angles will be measured via clinometer smart phone application in those patients to assess its validityand reliability where the participant will hold the leg for five seconds for each angle where this process will be reapeated for three times for each angle.

• Study Type: Observational
• Enrollment (Anticipated): 30

Contacts and Locations

• Study Contact: Name: Nada m saad eldeen, MSc; Phone Number: 002 +201225816871; Email: nada_assar@yahoo.com
• Study Contact Backup: Name: Nora m saadeldeen, BSc; Phone Number: 002 +201205149393; Email: eng_nora_magdy@hotmail.com

Study Locations

• Egypt
  • Cairo, Egypt, 11311
    • Faculty of Physical Therapy- Cairo University

Participation Criteria

Eligibility Criteria

• Ages Eligible for Study: 14 years to 31 years (Adult)
• Accepts Healthy Volunteers: N/A
• Genders Eligible for Study: All

• Sampling Method: Non-Probability Sample

Study Population

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; and (6) hopping/jumping.
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

Description

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; and (6) hopping/jumping.

  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 aren't included .

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Study Plan

How is the study designed?

Design Details

• Observational Models: Other
• Time Perspectives: Other

What is the study measuring?

Primary Outcome Measures

Outcome Measure	Measure Description	Time Frame
joint position sense in patients with patellofemoral pain syndrome	joint position sense assessment in patients with patellofemoral pain syndrome	2 years

Collaborators and Investigators

• Sponsor: Cairo University
• Investigators: Study Director: mohamed A abdelfatah, Phd, lecturer of orthopedic at faculty of physical therapy - cairo university

Publications and helpful links

General Publications

• Coelho VK, Gomes BSQ, Lopes TJA, Correa LA, Telles GF, Nogueira LAC. Knee proprioceptive function and physical performance of patients with patellofemoral pain: A matched case-control study. Knee. 2021 Dec;33:49-57. doi: 10.1016/j.knee.2021.08.031. Epub 2021 Sep 17.

Study record dates

Study Major Dates

• Study Start (Anticipated): November 1, 2022
• Primary Completion (Anticipated): September 1, 2024
• Study Completion (Anticipated): September 1, 2024

Study Registration Dates

• First Submitted: October 13, 2022
• First Submitted That Met QC Criteria: October 17, 2022
• First Posted (Actual): October 20, 2022

Study Record Updates

• Last Update Posted (Actual): October 21, 2022
• Last Update Submitted That Met QC Criteria: October 19, 2022
• Last Verified: October 1, 2022

More Information

Terms related to this study

• Keywords: Patellofemoral pain syndrme
• Additional Relevant MeSH Terms: Pathologic Processes; Disease; Joint Diseases; Musculoskeletal Diseases; Syndrome; Patellofemoral Pain Syndrome
• Other Study ID Numbers: P.T.REC/012/003957