Amniotic Membrane in Total Knee Replacements to Reduce Scarring

Study Overview
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Brief Summary
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The overall objective of this study is to evaluate the effectiveness of dHACM in reducing scar tissue formation in total knee replacement patients.

Official Title
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A Prospective Randomized Clinical Trial Using Dehydrated Human Amnion/Chorion Membrane (dHACM) in Total Knee Replacement Patients to Reduce Post-operative Scarring.

Conditions
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Scarring

Intervention / Treatment
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* Procedure: Total Knee Arthroplasty
* Other: Application of dHACM


Participation Criteria
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Eligibility Criteria
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Inclusion Criteria: Are adults ages 18 or older. Are diagnosed with advanced osteoarthritis as determined by clinical exam and necessitate total knee replacement. Have a willingness to comply with follow-up examination. Have ability to give full written consent. Exclusion Criteria: Has had a previous total or partial joint replacement performed at the same site Has a planned bilateral procedure at this time. Bilateral patients can be enrolled if the procedures are staged. Has signs or symptoms of any other disease which could result in allograft failure, or has experienced allograft failure in the past. Has used any investigational drug(s) or therapeutic device(s) within 30 days preceding screening. Is pregnant or may become pregnant during the study. Is a prisoner. Has any condition(s) which seriously compromises the subject's ability to participate in this study, or has a known history of poor adherence with medical treatment. Is currently taking medications which could affect allograft incorporation (supervising physician's discretion). Is confined to bed or a wheelchair. Has clinical signs and symptoms of local infection at the site. Has autoimmune disease or a known history of having Acquired Immunodeficiency Syndrome (AIDS) or HIV. Has current diagnosis of cancer at the site. Has had prior radiation therapy treatment at the site. Is currently taking anticoagulant therapy. Is unable to sign or understand informed consent. Has a history of drug or alcohol abuse within last 12 months. Is allergic to Aminoglycoside antibiotics (such as gentamicin and/or streptomycin).

Ages Eligible for Study
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Minimum Age: 18 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: Randomized
Intervention Model: Parallel Assignment
Masking: Single


Arms and Interventions

| Participant Group/Arm | Intervention/Treatment |
| --- | --- |
| Experimental: dHACM<br>Total knee arthroplasty, per the usual practice of the physician with application of dHACM between the underlying fascia and the overlying skin layers to reduce scar formation | Procedure: Total Knee Arthroplasty<br>* Total knee arthroplasty, per the usual practice of the physician.<br>Other: Application of dHACM<br>* Application of dHACM at end of procedure before closing wound between the underlying fascia and the overlying skin layers to reduce scar formation<br>|
| Other: Control<br>Total knee arthroplasty, per the usual practice of the physician without application of dHACM. | Procedure: Total Knee Arthroplasty<br>* Total knee arthroplasty, per the usual practice of the physician.<br>|

What is the study measuring?
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Primary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Increased range of motion between both groups as measured by goniometer |  | 6 weeks | 

Secondary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Incidence of need for manual manipulation of affected knee |  | 6 weeks |