Relationship of Dynamic Knee Valgus With Foot Posture, Pain, and Balance in Chronic Ankle Instability.

NCT07121725 | Completed

• 1 other identifier: No:P.T.REC/012/005728
• Study Type: observational
• Target: 84
• Locations: 1 country
• Sites: 1

Brief Summary

The purpose of the study is to identify if there is a relationship between the frontal plane projection angle as a measure of dynamic knee valgus with foot posture, pain, and dynamic balance in chronic ankle instability patients.

Conditions

Chronic Ankle Instability

Keywords

Frontal plane projection angle

Outcome Measures

Primary Outcomes (3)

• correlation between the frontal plane projection angle and foot posture in chronic ankle instability patients.

  NAME OF THE MEASUREMENT: "Frontal Plane Projection Angle" UNIT OF MEASURE: "measured in degrees" MEASUREMENT TOOL: "using a digital camera and Kinovea software" regarding foot posture: NAME OF THE MEASUREMENT: "Foot Posture" MEASUREMENT TOOL: "assessed using the Foot Posture Index (FPI), a 6-item scale" Criteria assessed included palpating the talar head, assessing supra and infra lateral malleolar curvature, calcaneal inversion/eversion, and examining talo-navicular prominence. Additionally, the congruence of the medial longitudinal arch and the forefoot's abduction/adduction relative to the rearfoot was evaluated UNIT OF MEASURE: "scored from -12 to +12 * Highly supinated foot scores between (-5 to -12) * Supinated foot scores between (-4 to -1) * Normal foot scores between (0 to +5) * Pronated foot scores between (+6 to +9) * Highly pronated foot scores between (+10 to +12).

  baseline (single assessment session)

• correlation between the frontal plane projection angle and pain in chronic ankle instability patients

  regarding the frontal plane projection angle: NAME OF THE MEASUREMENT: "Frontal Plane Projection Angle" UNIT OF MEASURE: "measured in degrees" MEASUREMENT TOOL: "using a digital camera and Kinovea software" regarding pain measurement: NAME OF THE MEASUREMENT: Pain Intensity UNIT OF MEASURE: scale extending from 0 to 10 where 0 represented "no pain" and 10 represented the "worst pain possible'' MEASUREMENT TOOL: 11-point Numeric Rating Scale (NRS-11)

  baseline (single assessment session)

• correlation between the frontal plane projection angle and dynamic balance in chronic ankle instability patients.

  regarding the frontal plane projection angle: NAME OF THE MEASUREMENT: "Frontal Plane Projection Angle" UNIT OF MEASURE: "measured in degrees" MEASUREMENT TOOL: "using a digital camera and Kinovea software" regarding dynamic balance: NAME OF THE MEASUREMENT: "Dynamic Balance" MEASUREMENT TOOL: "Modified Star Excursion Balance Test (M-SEBT)" UNIT OF MEASURE: "normalized reach distance in centimeters (cm)

  baseline (single assessment session)

Eligibility Criteria

• Age: 15 Years - 32 Years
• Sex: all
• Healthy Volunteers: No
• Age Groups: Child (0-17), Adult (18-64)
• Sampling Method: Non-Probability Sample

Study Population

The sample will be recruited from the outpatient clinic of the Faculty of Physical Therapy at Cairo University by referral from the orthopedic doctor diagnosed with chronic ankle instability.

You may qualify if:

• A history of at least 1 significant ankle sprain.
• The initial sprain must have occurred at least 12 months prior to study enrollment.
• The most recent injury must have occurred more than 3 months prior.
• Additionally, a sprain that was associated with inflammatory symptoms (pain, swelling, etc.), Created at least 1 interrupted day of desired physical activity.
• A history of the previously injured ankle joint as "giving way" and/or recurrent sprain and/or "feelings of instability." And the self-reported outcome measure foot and ankle ability measure (FAAM): ADL scale \<90%.

You may not qualify if:

• History of previous surgeries or fractures to the musculoskeletal structures (i.e., bones, joint structures, nerves) in either limb.
• No acute injury to musculoskeletal structures of other joints of the lower extremity in the previous 3 months, which impacted joint integrity and function (i.e., sprains, fractures) resulting in at least 1 interrupted day of desired physical activity.
• Participants were screened to exclude scoliosis using the Adam's Forward Bend Test (AFBT).

Sponsors & Collaborators

• Cairo University: lead

Study Sites (1)

Faculty of Physical Therapy- Cairo University

Giza, 12613, Egypt

Location

Study Officials

• Meriam N Shafik, B.Sc

  department of musculoskeletal disorders and it's surgery- Faculty of Physical Therapy

  PRINCIPAL INVESTIGATOR

Study Design

• Study Type: observational
• Observational Model: OTHER
• Time Perspective: PROSPECTIVE
• Sponsor Type: OTHER
• Responsible Party: PRINCIPAL INVESTIGATOR
• PI Title: demonstrator of Musculoskeletal Disorders and it's Surgeries- Beni Suef University

Study Record Dates

• First Submitted: August 3, 2025
• First Posted: August 13, 2025
• Study Start: December 1, 2024
• Primary Completion: February 28, 2025
• Study Completion: April 30, 2025
• Last Updated: August 13, 2025

Record last verified: 2025-08

Data Sharing

• IPD Sharing: Will not share

Locations

EG (1)