Total Hip Replacement With Ceramic on Ceramic Bearing- Clinical Follow-up Study

Study Overview
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Brief Summary
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The pain and severe wear of hip joints caused by osteoarthritis, rheumatoid arthritis, avascular necrosis and trauma can be subjected to total hip replacement (THR). A hip implant consists of 4 components: acetabular cup, femoral stem, articular liner and femoral head. As an ideal material for THR, ceramic possesses excellent biocompatibility and stability in the human bodies. Moreover, ceramic-on-ceramic interface is highly wear-resistant, preventing generation of wear particles. With the development of latest fourth-generation ceramic Delta, larger femoral heads can be manufactured to conform to the size of native femoral heads. The rate of some of the complications after THR, such as dislocation, can be significantly reduced. The purpose of the present study is to carry out a clinical follow up for each patient who has received the ceramic-on-ceramic THR in order to understand the clinical outcome. Furthermore, the possible complications, such as dislocation and squeaking, can be determined.

Official Title
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Total Hip Replacement With Ceramic on Ceramic Bearing- Clinical Follow-up Study

Conditions
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Total Hip Arthroplasty, Total Hip Replacement

Participation Criteria
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Eligibility Criteria
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Inclusion criteria: Patients who has received ceramic-on-ceramic total hip replacement after the year of 2013. Exclusion criteria: Patients who are unable or unwilling to return for follow-up Patients who have deep periprosthetic joint infection Patients who are diagnosed skeletal dysplasia Patients who suffer from mental disorders

Ages Eligible for Study
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Minimum Age: 20 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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What is the study measuring?
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Primary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Visual Analogue Scale- Change from baseline at 1 year | Visual Analogue Scale is a patient-reported outcome measure. The scale ranges from 0 to 10. A score of 0 represents no pain, while a score of 10 represents extreme pain. | Change from baseline at 1 year | 
| Harris Hip Score- Change from baseline at 1 year | Harris Hip Score includes 4 sections that evaluate pain, function, deformity, and range of motion. Total scores is from 0 to 100, higher scores represent a better outcome. | Change from baseline at 1 year | 
| Oxford Hip Score- Change from baseline at 1 year | Oxford Hip Score is a patient-reported outcome measure with 12 questions related to the condition of function and pain. Total scores is from 0 to 48, higher scores represent a better outcome. | Change from baseline at 1 year | 
| Radiologic analysis- Change from baseline at 1 year | Radiologic analysis helps observe the existence of radiolucent lines, which can be analyzed to determine if implant loosening occurs. | Change from baseline at 1 year | 

 Terms related to the study
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Keywords Provided by Centre Hospitalier Valida
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total hip arthroplasty, ceramic-on-ceramic, total hip replacement