Agili-C™ Implant Performance Evaluation

This is a prospective, multicenter, open-label, randomized, and controlled trial of Agili-C™
vs. SSOC for the repair of joint surface lesions.

Follow-up visits will be performed at 2 weeks and at 3, 6, 12, 18 and 24 months
post-procedure to evaluate the patient's knee condition and clinical health. The following
questionnaires: KOOS, IKDC Knee Examination Form 2000, IKDC Subjective Knee Evaluation ,
SF-12 Health Survey, Tegner Activity Score will be completed at baseline and at 6, 12, 18 and
24 months. Anterior-Posterior (A/P) and Lateral knee X-rays will be taken at 2 weeks and at
6, 12, 18 and 24 months post procedure. MRI according to specific protocol will be performed
at 12 and 24 months.

Inclusion Criteria:

1. 21 -75 years

2. Up to 3 treatable joint surface lesion(s), ICRS Grade III or above, on the femoral
condyles and/or trochlea

3. Symptomatic total treatable area 1-7 cm2. Asymptomatic lesions will not be included in
the calculation

4. Must be physically and mentally willing and able to comply with the post-operative
rehabilitation protocol and scheduled clinical and radiographic visits

5. Signed and dated the IRB/Ethics Committee approved Informed Consent Form and HIPPA (if
applicable)

6. Non-responsive to physical therapy for at least 3-4 weeks

Exclusion Criteria:

1. KOOS Pain Subscale score at baseline is less than 20 or more than 65 (scale: maximum
pain =0, pain free =100)

2. Bony defect depth deeper than 8mm, according to baseline MRI/X-ray/arthroscopy

3. Articular cartilage lesions in the tibia or the patella, ICRS grades IVa or above

4. Osteoarthritis of the index knee graded 4 according to the Kellgren-Lawrence Grading

5. Significant instability of the index knee according to IKDC Knee Examination Form
2000, Grade C (abnormal) or D (severely abnormal)

6. Malalignment more than 8 degrees varus OR 8 degrees valgus according to standing X-ray

7. Lack of functional remaining meniscus, at least 5mm rim at the end of the procedure

8. Meniscal transplantation in the past 6 months

9. Any known tumor of the index knee

10. Any known history of intra-articular or osseous infection of the index knee

11. Any evidence of active infection anywhere in the body. Urinary Tract Infection (UTI)
patients can be included following antibiotic treatment, and provided that two
consecutive cultures are negative (taken within at least 2 weeks of each other)

12. Any known history of inflammatory arthropathy or crystal-deposition arthropathy

13. Any known systemic cartilage and/or bone disorder, such as but not limited to,
osteoporosis, chondrodysplasia or osteogenesis imperfecta

14. Body Mass Index (BMI) > 35

15. Chemotherapy in the past 12 months

16. Any previous surgical cartilage treatment (such as: microfracture, ACI, OATS, etc.) in
the index knee within the last 6 months

17. Any previous ligamentous repair or malalignment correction in the index knee within
the last 6 months

18. History of allergic reaction or intolerance of materials containing calcium carbonate
or hyaluronate

19. Patient who is pregnant or intends to become pregnant during the study

20. History of any significant systemic disease, such as but not limited to: HIV,
hepatitis, HTLV, syphilis, and coagulopathies

21. Known substance or alcohol abuse

22. Participation in other clinical trials within 60 days prior to the study or concurrent
with the study

23. Known insulin dependent diabetes mellitus

24. Unable to undergo either MRI or X-ray

25. Use of anticoagulation medication or antiaggregant medication; however up to 100 mg
Acetylsalicylic acid (ASA) daily is allowed

26. Previous intra-articular steroid injection within the last 1 month

27. Prisoners

28. Uncontained lesion - Lack of vital bone wall, at least 2mm thick, completely
surrounding the lesion - based on MRI/X-ray/arthroscopy

29. Inability to position the implant 2mm recessed relative to the articular surface -
based on MRI/X-ray/arthroscopy