BioCleanse Tibialis Tendon Anterior Cruciate Ligament (ACL) Study

This is a single-arm, single site, pilot study in patients with a ruptured ACL.. A total of
fifty (50) subjects will be enrolled in this trial. All patients will have been scheduled to
undergo ACL reconstruction and will receive a BioCleanse Tibialis allograft as part of the
normal standard of care practiced by the treating surgeon. Follow up is for 2 years.

The age of the allograft donor will be divided into 2 groups:

1. 18-45 years of age

2. over 45 years of age.

However, there is no assignment of graft, specific to donor age, to the patients. All
treatment will follow standard of care and this study assumes that there will be a normal
distribution of graft donor ages, from 18 to 65 years of age.

Patient outcomes will be compared between the 2 groups of tendon donor ages. Neither the
surgeon nor the patient will be aware of the age of the graft donor, per typical standard of
care.

Inclusion Criteria:

1. Study subjects will be limited to those subjects undergoing allograft anterior
cruciate ligament reconstruction surgery

2. Meniscal injuries may be included

3. Isolated, unilateral anterior cruciate ligament injury.

4. All subjects will have a minimum age of eighteen (18) years and a maximum of sixty
(60) years.

5. Both male and non-pregnant female subjects will be included.

6. To facilitate follow-up, study subjects will be limited to the local geographic area
of the study site and be willing to use the rehabilitation facility and physical
therapy schedule assigned by the surgeon.

7. All subjects must be able to read, write, and comprehend instructions and guidelines
in English and understand (and sign as an acknowledgment of their understanding) an
informed consent declaration.

Exclusion Criteria:

1. No chondral defects

2. Failure to comply with or meet all of the inclusion criteria listed above.

3. Autograft anterior cruciate ligament surgery on either knee.

4. Anterior cruciate ligament injury on contra-lateral leg at any time

5. Multi-ligament reconstruction

6. Inability to comply with all requirements of this investigation, as well as follow the
instructions of the physician.

7. Significant systemic disease or conditions which impact overall health or well being
or which necessitate chronic medication use.

8. Revision anterior cruciate ligament surgery to either knee at anytime

9. Exhibiting signs of moderate to severe degenerative joint disease in addition to
requiring anterior cruciate ligament surgery.

10. Concomitant injuries to the knee or lower extremities requiring treatment, per
surgeon's discretion.