Damaged Chondral or Osteochondral Area
Conditions
Brief summary
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.
Interventions
DEVICEHyalex Knee Cartilage System
Surgical implantation of the Hyalex Knee Cartilage System
Sponsors
Hyalex Orthopaedics, Inc.
Study design
Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
TREATMENT
Masking
NONE
Eligibility
Sex/Gender
ALL
Age
22 Years to 70 Years
Healthy volunteers
No
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.
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| Composite Primary Endpoint | 12 months | * A clinically significant improvement in KOOS Pain score; * A clinically significant improvement in KOOS ADL score; * Lack of treatment-related SAEs; and * Absence of secondary surgical intervention defined as HYALEX Freestyle Resurfacing Implant removal or revision due to a treatment-related finding. |
| Change in the Knee Injury & Osteoarthritis Outcome Score (KOOS) at 12 months. | 12 months | The KOOS assesses patient pain, other symptoms, function in daily living, function in sport and recreation, and knee related quality of life. Scores range from 0 to 100 with a score of 0 indicating the worst possible knee symptoms and 100 indicating no knee symptoms. |
Countries
United States
Contacts
CONTACTChris Cain
Outcome results
None listed