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NCT Number: NCT07589192

Calcaneal Angles And Postoperative Body Balance Following Internal Fixation

The goal of this observational cross sectionl study is to explore the correlation between Böhler angle and dynamic postural stability indices after calcaneal internal fixation.

in calcaneal fracture post internal fixation both gender, (18-40) yr.

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Key information

Age range

18 year–40 year

Sex eligibility

All sexes

Study type

Observational

Primary location

About this study

The goal of this observational cross sectionl study is to explore the correlation between Böhler angle and dynamic postural stability indices after calcaneal internal fixation.

  • To explore the correlation between Böhler angle and fall risk index after calcaneal internal fixation.
  • To explore the correlation between Gissane angle and dynamic postural stability indices after calcaneal internal fixation.
  • To explore the correlation between Gissane angle and fall risk index after calcaneal internal fixation.
  • To explore if Böhler angle can predict dynamic postural stability indices after calcaneal internal fixation.
  • To explore if Böhler angle can predict fall risk index after calcaneal internal fixation.
  • To explore if Gissane angle can predict dynamic postural stability indices after calcaneal internal fixation.
  • To explore if Gissane angle can predict fall risk index after explore in calcaneal fracture post internal fixation both gender, (18-40) yr, The main questions it aims to answer are: • Will there be a significant correlation between Böhler angle and dynamic postural stability indices after calcaneal internal fixation?
  • Will there be a significant correlation between Böhler angle and fall risk index after calcaneal internal fixation?
  • Will there be a significant correlation between Gissane angle and dynamic postural stability indices after calcaneal internal fixation?
  • Will there be a significant correlation between Gissane angle and fall risk index after calcaneal internal fixation?
  • Will Böhler angle can significantly predict dynamic postural stability indices after calcaneal internal fixation?
  • Will Böhler angle can significantly predict fall risk index after calcaneal internal fixation?
  • Will Gissane angle can significantly predict dynamic postural stability indices after calcaneal internal fixation?
  • Will Gissane angle can significantly predict fall risk index after calcaneal internal fixation?

Who can participate

Healthy volunteers accepted: No

Only the study team can determine whether someone qualifies for participation.

Inclusion criteria

  • Participants referred from orthopedic surgeon with calcaneal fracture treated with internal fixation.
  • Adults aged 18-40 .
  • Unilateral displaced intra-articular calcaneal fracture .
  • Underwent internal fixation (plate/screws) .
  • At least 1 years follow up postoperative .
  • Able to stand independently.
  • Both males and females.

Exclusion criteria

  • Problems with cognition, vision, or any other medical issue that might compromise their ability to safely engage in the selected balancing measures should be avoided .
  • Those with foot or ankle sensitivity loss and a systemic inflammatory illness, including diabetes mellitus, rheumatoid arthritis, or ankylosing spondylitis .
  • Patients with vestibular or neurological disorders .
  • Accompanying lower limb and spine fractures, which required internal fixation, talus fractures, thoracolumbar burst fractures, femur fractures, and tibia fractures), severe knee arthrosis, postoperative osteomyelitis of the calcaneus, and subtalar arthrodesis performed before this study because of subtalar arthrosis and pain .
  • Patients who had lower limb dysfunction; and women who are pregnant and are in their lactation period .
  • Refusal to give informed consent to participate in the study .
  • Any associated fracture, bilateral fractures, associated peroneal tendon dislocation, postoperative wound breakdown and superficial or deep infection, age younger than .
  • Calcaneal heel spur
  • Foot deformity

Treatment and study plan

Biodex Balance System

Diagnostic Test

Assessment for body balance via Biodex Balance System

Primary outcomes

  1. 1. Anterior/Posterior stability index (APSI)

    Time frame: single time point

    Assessment of body balance

  2. Medial/Lateral stability index (MLSI)

    Time frame: single time point

    Assessment of body balance

  3. Overall stability index (OSI)

    Time frame: single time point

    Assessment of body balance

  4. Fall Risk index (FRI)

    Time frame: single time point

    Assessment of risk of fall

  5. Böhler angle

    Time frame: single time point

    calcaneal alignment angles

  6. Gissane angle

    Time frame: single time point

    calcaneal alignment angles

Study contacts

Contact information is provided by the study sponsor or research team.

Azza M Abdelmohsen, Assistant Professor of Biomech

CONTACT

[email protected]

0201145046304

Nassif M Mousa, Master

CONTACT

[email protected]

+201273152233 ext. 0201011980133

Sponsors and collaborators

Lead sponsor

Cairo University

Other

Registry information

Official study title

Biomechanical Relationship Between Calcaneal Alignment Angles And Postoperative Body Balance Following Internal Fixation

Acronym: POIF

Important dates

Study start
2026
Primary completion
2028
Study completion
2028
First posted
May 15, 2026
Registry last updated
May 15, 2026

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.