To analyze the dimensions of the posterior cruciate ligament (PCL), anterior cruciate ligament (ACL), the presence of meniscus-femoral ligaments MFLs in human knees, and the correlation with the dimensions of the knee skeleton. Anatomical study on 29 specimens of human knees in which we measured the length and width of the cruciate and meniscus-femoral ligaments and the dimensions of femoral and tibia condyles and the femoral notch. The ACL length was calculated with different degrees of knee flexion. The relationship between the ligaments and bone dimensions were analyzed. The length of the ACL and the PCL were similar. Posterior MFL was more frequent and longer than the anterior MFL. We found the posterior MFL in the 72.41% of the knees and anterior MFL in 20.69%. The ACL presented 30% of its maximum length up to 60°, approximately half of its length between 90° and 120°, reaching its maximum length at 170°. We found a strong correlation between the length of the ACL and that of the PCL ( = 0.001). However, the lengths of the ACL and PCL were not related with the bone dimensions. We have found no correlations between the cruciate and MFLs and the anatomical dimensions of the intercondylar notch and the proximal tibia and distal femur. The presence of the posterior MFL was more frequent and longer than that of the anterior ligament.
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http://dx.doi.org/10.1055/s-0042-1750073 | DOI Listing |
Mil Med
January 2025
Musculoskeletal Department, Naval Health Clinic Annapolis/United States Naval Academy, Annapolis, MD 21402, USA.
Introduction: Acute anterior cruciate ligament (ACL) injuries can be disabling because of prolonged rehabilitation process following surgical reconstructions. Rates of ACL injuries among military service members are close to 10 times greater than the general civilian population, likely because of the operation tempo and the unique physical requirements. Studies debated functional testing requirements for return to sports, but no study investigated the impact of functional training and re-injury rates following ACL reconstruction and their association with functional testing outcomes and time to return to full duty in United States Naval Academy (USNA) Midshipmen.
View Article and Find Full Text PDFJ Exp Orthop
January 2025
Department of Trauma and Orthopaedics, Institute for Locomotion, Sainte-Marguerite Hospital Aix-Marseille University Marseille France.
Purpose: Asymmetric anterior closing-wedge high tibial osteotomy (ACWHTO) allows correction of both excessive posterior tibial slope (PTS) and varus deformity. However, the complexity of this surgery requires a high degree of accuracy, which is less likely to be achieved with standard instrumentations. This study aimed to determine the accuracy of 3D patient-specific cutting guides (PSCGs) to provide the accurate planned correction in the frontal and sagittal planes.
View Article and Find Full Text PDFOrthop J Sports Med
December 2024
Department of Orthopaedic Surgery, Stanford University, Redwood City, California, USA.
Background: Injury to the posterior vasculature is a potential complication in orthopaedic knee surgery that may be associated with variations in its anatomy, such as the type II-A2 variant, which places the anterior tibial artery (ATA) in closer proximity to the tibia. However, how close surgical instrumentation comes to injuring the ATA is not well described.
Purpose: To determine how the type II-A2 variant of the popliteal vasculature affects proximity of the ATA to instrumentation for orthopaedic knee procedures.
Purpose: Ruptures of the posterior cruciate ligament (PCL) are often accompanied by posterolateral corner (PLC) and posteromedial corner (PMC) injuries. This study investigates the incidence and impact of PMC and PLC injuries on posterior tibial translation (PTT). It was hypothesized that PMC injuries are more common and impactful than previously reported.
View Article and Find Full Text PDFRev Bras Ortop (Sao Paulo)
October 2024
Sanjay Gandhi Institute of Trauma and Orthopedics, Bangalore, Karnataka, Índia.
The present study endeavors to scrutinize the precision of magnetic resonance imaging as a diagnostic modality for detecting ligament disruption of the knee, with arthroscopy serving as the gold standard. The study delves into the sensitivity, specificity, positive predictive value, and negative predictive value of magnetic resonance imaging (MRI) results in a cohort of 200 patients against diagnostic arthroscopy. Our institution conducted a comprehensive clinical examination of all patients with knee injuries, and those with affirmative findings suggestive of ligament disruption were subjected to an MRI scan.
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