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All 3 groups were evaluated at 4, 12, and 16 weeks after surgery. Biomechanical performance was assessed using tensile strength testing, and ACL healing and maturation were assessed using histological assessments.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Results:<\/jats:title>\n                    <jats:p>\n                      The PET-augmented group showed less anterior knee laxity at 30\u00b0 of knee flexion and superior structural continuity compared with the suture group. ACL repair with PET augmentation yielded recovery of the maximum tensile load as early as 4 weeks compared with that of the natural group (110.5 \u00b1 6.5 vs 129.0 \u00b1 8.6 N, respectively;\n                      <jats:italic toggle=\"yes\">P<\/jats:italic>\n                      = .29) and a gradual improvement in linear stiffness from 4 weeks (58.4 \u00b1 3.9 N\/mm) to 16 weeks (83.1 \u00b1 5.1 N\/mm;\n                      <jats:italic toggle=\"yes\">P<\/jats:italic>\n                      = .04), approaching that of the natural group (106.7 \u00b1 5.8 N\/mm). Furthermore, histological analyses revealed that in the PET-augmented group, the ACL healed back to the proximal insertion as early as 4 weeks with angiogenesis and collagen regeneration, and the increased ligament maturity score indicated a gradual healing process from 4 to 16 weeks.\n                    <\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Conclusion:<\/jats:title>\n                    <jats:p>Compared with nonaugmented repair, repair augmented with a PET band enhanced early ACL stability and supported healing of ACL tears in a rabbit model.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Clinical Relevance:<\/jats:title>\n                    <jats:p>The biomechanical and histological findings support subsequent clinical investigations using PET augmentation in patients with acute ACL tears.<\/jats:p>\n                  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