TY - JOUR A1 - Nau, Thomas A1 - Teuschl, Andreas A1 - Ebner, Anna A1 - Jung, Ilse A1 - Schenk, Christian T1 - Low revision rate and excellent outcome of primary ACL repair with a minimum follow-up of 5 years. JF - Muscle, ligaments and tendons Journal N2 - Introduction: Due to limitations of ACL reconstruction, primary ACL repair has recently regained research interest. Although abandoned in the past, primary repair with conservation of the original ligament demonstrates considerable advantages compared to reconstruction. We hypothesized that early repair, strictly limited to patients with a proximal ACL rupture and excellent tissue quality of the remaining ACL stump, would lead to equal revision rates and subjective outcomes as reported for ACL reconstruction after a minimum of 5 years. Methods: In this questionnaire study, patients who had a primary ACL repair between 2002 and 2009 were invited to participate. Besides any potential revision surgery, the Tegner activity scale and the Knee Injury and Osteoarthritis Outcome Score were included in the evaluation. Results: Out of 1912 patients who had ACL related surgery during the observation period, 221 (11.4%) had a primary ACL repair. 60 patients (61 knees) were available for follow-up. In 2/61 (3.3%) cases ACL revision surgery was performed and one patient had meniscus surgery of the affected side. The median Tegner activity scale was 6 (range, 3 to 10). The mean KOOS subscores were 88.8% (Function/Sports), 86.6% (Quality of life), 94.6 (Symptoms), 94.0 (Pain) and 97.0 (Activities of Daily Living). Conclusion: Primary ACL repair, strictly limited to proximal ruptures with good tissue quality leads to revision rates and subjective outcome comparable to ACL reconstruction. Level of evidence: IV. KW - Regeneration Y1 - SP - 185 EP - 190 ER - TY - JOUR A1 - Teuschl, Andreas A1 - Heimel, Patrick A1 - Nürnberger, Sylvia A1 - van Griensven, Martijn A1 - Redl, Heinz A1 - Nau, Thomas T1 - A Novel Silk Fiber-Based Scaffold for Regeneration of the Anterior Cruciate Ligament: Histological Results From a Study in Sheep. JF - The American Journal of Sports Medicine KW - Ligament KW - Regeneration Y1 - 2018 ER - TY - JOUR A1 - Nau, Thomas A1 - Teuschl, Andreas T1 - Regeneration of the anterior cruciate ligament: Current strategies in tissue engineering JF - World Journal of Orthopedics KW - Ligament KW - Regeneration KW - Tissue Engineering Y1 - VL - 6 IS - 1 ER -