Posterior Tibial Tendon Dysfunction
Conditions
Keywords
Posterior tibialis tendon dysfunction, Foot orthoses,
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.
Interventions
DEVICEFoot Orthoses
Three types of foot orthoses (FO), Prefabricated FO, Custom FO, Custom with a 5° varus FO
Sponsors
Laval University
Study design
Allocation
RANDOMIZED
Intervention model
CROSSOVER
Primary purpose
TREATMENT
Masking
SINGLE (Subject)
Eligibility
Sex/Gender
ALL
Age
18 Years to 65 Years
Healthy volunteers
No
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
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| 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 |
| Comfort of the orthoses | During the lab session | A comparison of the mean perceived comfort in each experimental condition. |
Countries
Canada
Outcome results
None listed