Biomechanical Effects of Three Types of Foot Orthoses in Individuals With Posterior Tibialis Tendon Dysfunction

Not Applicable

Completed

• Conditions: Posterior Tibial Tendon Dysfunction
• Interventions: Device: Foot Orthoses

• Registration Number: NCT06399237
• Lead Sponsor: Laval University

Brief Summary

Background :

Posterior tibialis tendon dysfunction (PTTD) is characterized by a loss of function of the muscle caused by the degeneration of the tendon leading to a flattening of the arch. FOs can be used as a treatment option, but their biomechanical effects are not yet fully understood. The aim of this study was to investigate the effects of three different types of foot orthoses (FOs) on gait biomechanics in individuals suffering from PTTD.

Methods :

Fourteen individuals were recruited with painful stage 1 or 2 PTTD based on the Johnson and Strom's classification. Quantitative gait analysis of the affected limb was performed in four conditions: shoed condition (Shoe), prefabricated FOs condition (PFO), neutral custom FOs condition (CFO) and five degrees varus (medial wedge) with a 4 mm medial heel skive custom FOs condition (CVFO). A curve analysis, using 1D statistical parametric mapping (SMP), was used to assess differences in lower limb joint motion, joint moments and muscle activity over the stance phase of gait across conditions.

Detailed Description

Not available

Study Timeline

• Study Start: 2018-06-01
• Primary Completion: 2018-08-28
• Study Completion: 2019-09-12
• Study First Submitted: 2021-04-08
• Status Verified: 2024-04
• Study First Submitted QC: 2024-04-30
• Last Update Submitted: 2024-04-30
• Study First Posted: 2024-05-03
• Last Update Posted: 2024-05-03

Recruitment & Eligibility

• Status: COMPLETED
• Sex: All
• Target Recruitment: 14

Inclusion Criteria

• Symptoms located to the medial ankle or foot Pain on palpation to the posterior tibialis muscle tendon Positive single or double heel-rise test Foot flattening and ''too many toes" sign

Exclusion Criteria

• Rigidity of those deformities Pain on palpation of the peroneal muscles Wearing any type of foot and/or ankle orthoses one month prior to the study onset History of corticosteroid injection in the tendon one month prior to the study onset Having a neurological disease or past history of surgery to the affected ankle

Study & Design

• Study Type: INTERVENTIONAL
• Study Design: CROSSOVER

Arm && Interventions

Group	Intervention	Description
Prefabricated foot orthoses (PFO)	Foot Orthoses	Walk at a self-selected pace with prefabricated foot orthoses (PFO).
Custom-fitted orthoses (CFO)	Foot Orthoses	Walk at a self-selected pace with custom-fitted orthoses (CFO)
Custom-fitted orthoses with a 5deg varus (CFVO)	Foot Orthoses	Walk at a self-selected pace with custom-fitted orthoses with a 5deg varus (CFVO)

Primary Outcome Measures

Name	Time	Method
Comfort of the orthoses	During the lab session	A comparison of the mean perceived comfort in each experimental condition.
Lower limbs' joint motion, joint moments and muscle activity	During the lab session	A comparison of the lower limbs' joint motion, joint moments and muscle activity over the stance phase of gait between conditions

Trial Locations

Locations (1)

Pavillon de l'Éducation Physique et des Sports - Université Laval; 🇨🇦 Quebec, Canada