BACKGROUND Patients with anterior cruciate ligament (ACL)-injured knees are at an increased risk of posttraumatic osteoarthritis (OA). OA changes secondary to ACL injuries have many variations, and when and where early cartilage degenerative change begins has not yet been established. PURPOSE To characterize the location of cartilage degeneration after ACL injury associated with time since in...

BACKGROUND Sports activities were thought to be the major cause of meniscus injury in both men and woman, but our observations of non-athletic females show that the cause of meniscus injury was unrelated to any type of sports activity. OBJECTIVES This study revealed squat winnowing to be a major cause of meniscus injury in non-athletic females. PATIENTS AND METHODS This retrospective study ...

OBJECTIVES The purpose of this study was to determine what patient and injury factors are associated with the presence of a meniscus tear in tibial plateau fractures. We also sought to compare functional outcome, pain scores, and range of motion between patient groups with and without meniscal injury. MATERIALS AND METHODS A total of 99 patients with 101 acute tibial plateau fractures were in...

Understanding the structure and function of the meniscus is critical to understanding its role in overall knee joint function. Injury to, or removal of, meniscal tissue may be associated with articular cartilage wear, knee instability, and, ultimately, the progression of osteoarthritis. While every effort is made for preserving and/or repairing damaged meniscal tissue, in some cases, the menisc...

No single clinical examination element, or combination of such elements, reliably detects meniscal injury. The McMurray test is best for ruling in meniscal pathology. Assuming a 9% prevalence of meniscal tears among all knee injuries (a rate reflecting national primary care data), the posttest probability that a patient with McMurray’s sign has a meniscal injury ranges from <30% to 63% (strengt...

BACKGROUND Ultrasound techniques have been utilized for detection of discrete meniscus tears and extrusion. Meniscal extrusion is associated with increased contact pressure and decreased contact area contributing to the advancement of knee osteoarthritis. The purpose of this biomechanical study was to detect meniscal extrusion using a clinically available, portable ultrasound device. And furthe...

BACKGROUND Anterior cruciate ligament (ACL) injury increases the risk of meniscus and articular cartilage damage, but the causes are not well understood. Previous in vitro studies were static, required extensive knee dissection, and likely altered meniscal and cartilage contact due to the insertion of pressure sensing devices. HYPOTHESIS ACL deficiency will lead to increased translation of th...

In this paper, the numerical study focuses on stress field of knee meniscus in two gaits jumping motion, and injury its protection effect are studied based distribution characteristics meniscus. The gait simulation was carried out by using a more detailed healthy model including bone, articular cartilage, meniscus, ligaments peripheral soft tissues constructed combining CT MRI tomography, peak ...

BACKGROUND Anterior cruciate ligament (ACL) injuries are more commonly seen with certain cutting and pivoting sports. However, injury patterns associated with these sports have not been well described. PURPOSE (1) To describe the patient demographics and injury pattern at the time of ACL reconstruction (ACLR) by activities that lead to ACL injuries and (2) to estimate the association of activ...