Dual Mobility Cup: Does it Improve Patient's Satisfaction After Total Hip Arthroplastry?

Study Overview
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Brief Summary
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Although the success of total hip arthroplasty, many patients were dissatisfied postoperatively. Patient's reported outcome measures become of a great importance in assessment of the results after joint replacement. The aim of this prospective study is to evaluate and compare postoperative patient's satisfaction after implantation of two commonly used different designs of total hip arthroplasty.

Detailed Description
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The investigators conducted a prospective comparative study carried out on 180 patients suffering of hip arthritis between 2011 and 2018. They were randomized into two groups of homogenous demographic and clinical data. Group A was treated by cementless T.H.A. with a large head while group B received cementless T.H.A. with a dual mobility cup. Clinical evaluation and preoperative patient's expectation were assessed and compared to the postoperative satisfaction.

Official Title
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Principal Investigator

Conditions
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Patient Satisfaction, Hip Osteoarthritis

Intervention / Treatment
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* Procedure: large head
* Procedure: dual mobility cup


Participation Criteria
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Eligibility Criteria
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Inclusion Criteria: Unilateral hip arthritis Age up to 65 years Body mass index (BMI) up to 35 Modified Charnley comorbidity classification equal to A Exclusion Criteria: Neurological deficit (e.g. Parkinsonism, stroke) Bone type c not fit for cementless fixation Poly-arthritis, active inflammatory arthritis (e.g. rheumatoid arthritis) Any patient with psychiatric disorders

Ages Eligible for Study
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Maximum Age: 65 Years

Sexes Eligible for Study
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All

Accepts Healthy Volunteers
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Accepts Healthy Volunteers

Study Plan
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How is the study designed?
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Design Details

Primary Purpose: Treatment
Allocation: Randomized
Intervention Model: Parallel Assignment
Interventional Model Description: This is prospective study was carried out on 180 patients with a unilateral arthritic hip between January 2011 and August 2018. Patients were divided into two groups, each group included 90 patients. Group A included patients received total hip with a large head (32-36mm.) made of cobalt-chrome. The femoral component was a cementless porous coated stem. The cup was a cementless porous coated Trilogy cup and was inserted press fit with primary additional one to three screws. Group B included those received total hip with a dual mobility cup
Masking: Quadruple


Arms and Interventions

| Participant Group/Arm | Intervention/Treatment |
| --- | --- |
| Other: large head group<br>study the postoperative patient's satisfaction | Procedure: large head<br>* implantation of large head total hip<br>Procedure: dual mobility cup<br>* implantation of dual mobility total hip<br>|
| Other: dual mobility group<br>study the postoperative patient's satisfaction | Procedure: large head<br>* implantation of large head total hip<br>Procedure: dual mobility cup<br>* implantation of dual mobility total hip<br>|

What is the study measuring?
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Primary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| patient's satisfaction | measurement by patient's reported outcomes measures | about 5 years | 
| clinical evaluation | WOMAC score | about 5 years | 
| pain assessment | VAS score | about 5 years | 

 Terms related to the study
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Keywords Provided by Centre Hospitalier Valida
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hip arthroplasty, satisfaction, dual mobility cup