No Placebo Group
Every participant receives an active treatment — no one gets a placebo.
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At a Glance
Age
22 – 70
Sex
Any
Study type
Interventional
Purpose
Treatment
Participants needed
85 (estimated)
Sponsor
Hyalex Orthopaedics, Inc. · Industry
Who this trial is looking for
This trial is looking for adults between the ages of 21 and 70 who have knee pain due to specific types of cartilage damage and have not found relief from other treatments like therapy or injections. They also need to be in generally good health without serious knee problems or other conditions that could complicate the study. However, if you've had recent knee surgeries or certain health issues, you might not be able to participate.
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A multicenter, open-label, single-arm, pivotal study to evaluate the safety and effectiveness of the HYALEX Freestyle Resurfacing System for replacement of loss of articular cartilage and bone of the knee femoral condyles in symptomatic patients who require surgical treatment, will be enrolled in the study and undergo implantation of the HYALEX Freestyle Resurfacing Implant.
Trial Locations
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Eligibility Criteria
Inclusion Criteria (Phase 1):
1. 22-70 years.
2. Body Mass Index (BMI) ≤ 40.
3. Up to two treatable joint surface lesion, ICRS Grade 3 or 4, located on the medial and/or lateral femoral condyle.
4. Up to 2 implants (one implant per condyle) to treat up to 2 individual symptomatic lesions with a tot…
Inclusion Criteria (Phase 1):
1. 22-70 years.
2. Body Mass Index (BMI) ≤ 40.
3. Up to two treatable joint surface lesion, ICRS Grade 3 or 4, located on the medial and/or lateral femoral condyle.
4. Up to 2 implants (one implant per condyle) to treat up to 2 individual symptomatic lesions with a total summative area up to 4.52cm2 / condyle.
5. Knee Injury and Osteoarthritis Outcome Score (KOOS) pain subscale score between 20 and 65.
6. Ligamentously stable knee.
7. Failure of non-operative treatment (e.g., physical therapy, physician-directed at home exercise program, intra-articular injections, bracing) for at least 4 months prior to consideration for participation in the study.
Exclusion Criteria:
HYALEX Implant, Surgical Technique, and Lesion Site Exclusions:
1. Known allergy to polyurethanes, bone cement, acrylic, or titanium.
2. Lack of 2mm of cartilage (ICRS Grade 0 to 2) and 2mm of vital bone wall on all sides of the implant site.
3. Osteochondral defect affecting subchondral bone more than 11mm in depth from adjacent non-defect articular surface.
4. Bipolar cartilage lesions involving patellar or tibial lesions ICRS Grade 3 - 4 opposite the lesion intended for treatment.
5. Insufficient bone stock or bone density determined intra-operatively preventing implant press fit.
Patient Orthopaedic Health Exclusions:
1. Kellgren and Lawrence (KL) grade 3 or 4 on standing radiographs.
2. Hip-knee-ankle (HKA) angle of greater than +/- 8 degrees (varus or valgus malalignment \> 8 degrees) on standing X-ray.
3. Lack of normally functioning contralateral knee that restricts activity.
4. Recent Osteochondritis Dissecans within 1 year.
5. Diagnosis of a concomitant knee injury which the investigator believes may interfere with study participation or confound effectiveness assessment.
6. Untreated ACL and/or PCL deficiency or complex ligamentous instability of the study knee according to IKDC Grade C (abnormal) or D (severely abnormal).
Previous Surgery and Intervention Exclusions:
1. Previous surgical cartilage treatment in the index knee within the last 6 months
2. Previous intra-articular injections, including HA and steroids, within the last 3 months prior to the date of surgery.
Patient Overall Health and Health History Exclusions:
1. Any known history of inflammatory arthropathy or untreated or uncontrolled crystal-deposition arthropathy.
2. Current cigarette smoker or user of other nicotine products.
3. Known Type 1 or Type 2 insulin-dependent diabetes mellitus.
4. Currently undergoing immunosuppressive therapy or long-term steroid use (corticosteroid, excluding inhalers) or within 3 months prior to surgery.
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