Influence of Weight-bearing Mechanical Axis on Foot and Ankle in Patients Following Total Knee Arthroplasty

Study Overview
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Brief Summary
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This comprehensive scientific research will investigate the influence of the weight-bearing mechanical axis on foot and ankle following total knee arthroplasty. Few studies have monitored the outcome of surgical treatment using similair methods, and consequently the aim of this study was to evaluate the change in upper and lower leg load by analyzing radiographic recordings and pedobarographic measurements after the implantation of total knee endoprosthesis. In addition to objective instruments, knee and foot questionnaires will be used to describe the functional outcome of the operation of the subjects. The practical contribution of this research lies in the prediction of possible changes in the joints of the feet depending on the type of knee deformity (varus / valgus). Our research will consist of: analysis of postero-anterior radiographs of the lower extremity (weight-bearing) preoperatively and at the follow-up three months postoperatively, pedobarographic analyzes preoperatively and at the control examination three months postoperatively, analysis of personal data (age, gender, weight and height, operated side) and completion of functional standardized questionnaires (AOFAS, KOOS) preoperatively, and at the screening three months postoperatively.

Official Title
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Influence of Weight-bearing Mechanical Axis on Foot and Ankle in Patients Following Total Knee Arthroplasty

Conditions
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Total Knee Artroplasty

Intervention / Treatment
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* Radiation: Postero-anterior weight-bearing full-leg radiograph
* Device: Pedobarographic analysis


Participation Criteria
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Eligibility Criteria
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Inclusion Criteria: knee varus or valgus deformity 5 degrees or more Exclusion Criteria: previous surgery which included corrective osteotomies, osteosynthesis or arthrodesis of the knee, ankle and foot.
Sexes Eligible for Study
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All

Accepts Healthy Volunteers
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No

Study Plan
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How is the study designed?
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Design Details

Primary Purpose: Diagnostic
Intervention Model: Single Group Assignment
Masking: None (Open Label)


Arms and Interventions

| Participant Group/Arm | Intervention/Treatment |
| --- | --- |
| Other: Arm Label<br>All patients who undergo total knee arthroplasty and met inclusion and exclusion criteria | Radiation: Postero-anterior weight-bearing full-leg radiograph<br>* Full leg standing X ray of the involved lower extremity (postero-anterior direction)<br>Device: Pedobarographic analysis<br>* Foot pressure analysis during gait on pedobarographic device<br>|

What is the study measuring?
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Primary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Weight-bearing mechanical axis |  | 1 year | 

Secondary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Pedobarographic analysis |  | 1 year | 

 Terms related to the study
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Keywords Provided by Centre Hospitalier Valida
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weight-bearing mechanical axis, total knee arthroplasty