To Compare Anterior Knee Pain Between Non Severe and Severe Patellofemoral Arthritis After Oxford UKA

Study Overview
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Brief Summary
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The aims of this study is to compare the results between patients without severe patellofemoral arthritis and patients with severe patellofemoral arthritis after mobile bearing UKA. The investigators prospective compute the results including anterior knee pain, knee society score, pain score, functional score, range of motion, operative time, blood loss, and component alignment.

Detailed Description
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The patients were performed surgery. The Oxford UKA was applied for all patient.

Official Title
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Study of Oxford Unicompartmental Knee Arthroplasty to Determine Anterior Knee Pain, Pain Score, Knee Score and Functional Score Between Patients Without Severe Patellofemoral Arthritis and Patients With Severe Patellofemoral Arthritis

Conditions
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Osteoarthritis

Intervention / Treatment
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* Device: Oxford unicompartmental knee arthroplasty


Participation Criteria
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Eligibility Criteria
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Inclusion Criteria: anteromedial osteoarthritis knee, older than 40 years old, range of motion > 90 degrees, varus deformity < 25degrees, flexion contracture< 20degrees, intact anterior cruciate ligament Exclusion Criteria: younger than 40, osteonecrosis of knee, rheumatoid, posttraumatic arthritis, absent of anterior cruciate ligament

Ages Eligible for Study
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Minimum Age: 40 Years

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: Treatment
Allocation: Non-Randomized
Intervention Model: Parallel Assignment
Masking: Quadruple


Arms and Interventions

| Participant Group/Arm | Intervention/Treatment |
| --- | --- |
| Experimental: Severe PF arthritis<br>Oxford unicompartmental knee arthroplasty is partial knee replacement. Oxford unicompartmental knee arthroplasty is applied for medial compartmental of knee. | Device: Oxford unicompartmental knee arthroplasty<br>* The patients with medial osteoarthritis knee with patellofemoral arthritis were performed surgery and applied Oxford unicompartmental knee arthroplasty.<br>* Other names: Oxford UKA;|
| Experimental: non severe PF arthritis<br>Oxford unicompartmental knee arthroplasty is partial knee replacement. Oxford unicompartmental knee arthroplasty is applied for medial compartmental of knee. | Device: Oxford unicompartmental knee arthroplasty<br>* The patients with medial osteoarthritis knee with patellofemoral arthritis were performed surgery and applied Oxford unicompartmental knee arthroplasty.<br>* Other names: Oxford UKA;|

What is the study measuring?
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Primary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| visual analog scale for anterior knee pain | The 10-point visual analog scale is 0 representing no pain and 10 representing maximum pain experience. | 1 year | 

Secondary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Knee society score | The standard clinical evaluation system for reporting results for patients undergoing unicompartmental knee arthroplasty | 1year | 

 Terms related to the study
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Keywords Provided by Centre Hospitalier Valida
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Oxford UKA, anterior knee pain, lateral facet of patella