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Abstract Purpose Anterior cruciate ligament (ACL) repair has been recommended as a treatment principle for ACL tears. Several authors have advocated a potential role for primary repair techniques in the ACL decision tree. However, long‐term results have been controversial. This study aims to determine the survival of the primarily repaired ACL after dynamic intraligamentary stabilization (DIS) with and without augmentation. Methods Between 2014 and 2019, 102 patients with isolated proximal ACL ruptures underwent DIS repair within 21 days from injury and were available for follow‐up either clinically or telephonically after ≥5 years postoperatively. In 45 cases, DIS repair was augmented with collagen fleece wrapping, platelet‐rich fibrin (PRF) or both. Failure was defined as traumatic re‐rupture or conversion to ACL reconstruction. The patients being available for physical examination underwent a.‐p. stability measurement with a KT‐1000 device. Functional outcome was measured with the IKDC, Tegner and Lysholm scores. Kaplan‐Meier survival analysis, Log‐Rank Test and Binominal logistic regression were performed. Results After a minimum 5‐year follow‐up, 71/102 (69.6%) DIS repairs were not re‐reptured and clinically and/or subjectively stable. Augmentation did not improve survival rates (p = 0.812). The identified factors influencing failure were a younger age and a pre‐injury Tegner activity level of ≥7. 95.7% of those patients with an intact ACL repair had normal or near normal knee function based on the IKDC scoring system. Conclusions The 5‐year overall survival rate of DIS was 69.6%. Collagen fleece wrapping and local PRF application did not improve survival. Patients not suffering failure of repair demonstrated high satisfaction. Nevertheless, the results are inferior to those of established ACL reconstruction procedures. Level of evidence Case series, Level IV.

Abstract Purpose Osteotomies represent well‐established treatment‐options for the redistribution of loads and forces within and around the knee‐joint. Effects of these osteotomies on the remaining planes and adjacent joints are not fully understood. The aim of this study was to determine the influence of a distal‐femoral‐rotation‐osteotomy on the coronal alignment of the ankle. It was hypothesized that supracondylar‐external‐rotation‐osteotomy of the distal femur leads to a change in the coronal orientation of the ankle joint. Methods Long‐leg standing radiographs and CT‐based torsional measurements of 27 patients undergoing supracondylar‐rotational‐osteotomy of the femur between 2012 and 2019 were obtained and utilized for the purpose of this study. Postoperative radiographs were obtained after union at the osteotomy‐site. The hip‐knee‐ankle‐angle (HKA), the mechanical‐lateral‐distal‐femur‐angle (mLDFA), and Tibia‐Plafond‐Horizontal‐Orientation‐Angle (TPHA) around the ankle were measured. Comparison between means was performed using the Wilcoxon‐Mann–Whitney test. Results Twenty‐seven patients with high femoral antetorsion (31.3° ± 4.0°) underwent supracondylar‐external‐rotation‐osteotomy. The osteotomy led to a reduced antetorsion (17.4 ± 5.1; p