Trilogy AB Acetabular Hip System Post Approval Study

Study Overview
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Brief Summary
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This is a post-approval study with prospective enrollment in the United States and a retrospective enrollment outside the United States to obtain functional, quality of life and radiographic data, which will facilitate assessment of the clinical performance of the Zimmer Trilogy AB Acetabular Hip System.

Detailed Description
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To obtain functional, quality of life and radiographic data to evaluate the clinical performance of the Zimmer Trilogy AB Acetabular Hip System in primary total hip replacement surgery.

Official Title
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Multicenter Post Approval Study of the Trilogy AB(R) Acetabular System

Conditions
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Osteoarthritis, Avascular Necrosis, Congenital Hip Dysplasia, Traumatic Arthritis

Intervention / Treatment
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* Device: Trilogy AB Acetabular Hip Implant System


Participation Criteria
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Eligibility Criteria
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Inclusion Criteria: Non-obese patients The patient is a good candidate for a primary hip arthroplasty using the Zimmer Trilogy AB Acetabular Hip System. Patient is willing and able to give informed consent to participate in the follow-up program. Patient is suitable for surgery and able to participate in the follow-up program. Exclusion Criteria: Skeletally immature Rheumatoid arthritis Osteoradionecrosis Infection Nerve or muscle disease that may have a negative affect on gait or weight bearing Loss of abductor musculature in the affected limb Poor bone stock Poor skin coverage around the hip joint Rapid disease progression as obvious by joint destruction or bone absorption seen on x-ray Previous total or cemented hemi-arthroplasty of the affected hip Previous pinning or plating of the affected hip Patients with heavy labor jobs or extreme activity levels Patients who participate in sports activities or require deep flexion Patients who are obese Patients who have other disabilities Patients who are unwilling or unable to give consent, or to comply with the protocol and follow-up program.

Ages Eligible for Study
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Minimum Age: 18 Years
Maximum Age: 80 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
Intervention Model: Single Group Assignment
Masking: None (Open Label)


Arms and Interventions

| Participant Group/Arm | Intervention/Treatment |
| --- | --- |
| Other: Trilogy AB Acetabular Hip Implant System<br>Post Approval Study of Device. | Device: Trilogy AB Acetabular Hip Implant System<br>* Total hip replacement with ceramic on ceramic treatment surfaces.<br>|

What is the study measuring?
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Primary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Harris Hip Score | The Harris Hip Score was developed to assess hip disabilities and methods of treatment and has been in use for decades. It evaluates patients on the basis of pain, function, absence of deformity and range of motion. The Harris Hip Score could range from 0 to 100. Scores less then 70 are poor, scores 70 to 79 are fair, scores 80 to 89 are good, and scores 90 to 100 are excellent. | Pre-op, 3 Month Post-Op and Annual Post-Op visits through 5 Years | 

Secondary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Continued Assessment of Implant Survivorship and Incidences of Adverse Events. | A total of 37 Adverse Events were reported. There have been no UADEs reported in this study population. At the time of site closure all AEs were resolved or tolerated. Implant survivorship not reportable due to early study termination. | At all follow-up visits through 5 Years and postcard follow-up 6 - 10 Years | 

 Terms related to the study
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Keywords Provided by Centre Hospitalier Valida
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Arthritis, Total Hip, Ceramic, Hip Replacement, Total Hip Arthroplasty (THA), Joint Disease