BACKGROUND Traumatic impaction is known to cause acute cell death and macroscopic damage to cartilage and menisci in vitro. The purpose of this study was to investigate cell viability and macroscopic damage of the medial and lateral menisci using an in situ model of traumatic loading. Furthermore, the release of nitric oxide from meniscus, synovium, cartilage, and subchondral bone was also docu...

OBJECTIVE Assess the impact of knee joint loading on meniscal extrusion in normal individuals and those with varying degrees of osteoarthritis (OA). METHODS 143 healthy volunteers and patients with OA underwent 3 T MRI of the knee under unloaded and loaded conditions. OA was graded with the Kellgren-Lawrence (KL) system. Menisci were evaluated for presence of tear. Descriptive statistics were...

OBJECTIVE Successful repair of defects in the avascular zone of meniscus remains a challenge in orthopedics. This proof of concept study aimed to investigate a guided tissue regeneration approach for treatment of tears in meniscus avascular zone in a goat model. DESIGN Full-depth longitudinal tear was created in the avascular zone of the meniscus and sutured. In the two treatment groups, porc...

BACKGROUND This study aimed to consider the use of a meniscal repair in patients in order to close the horizontal cleavage extending up to the avascular zone. The hypothesis was to examine the clinical and arthroscopic outcomes following meniscal repair of degenerative horizontal cleavage tears with new-generation all-inside suture materials using the overlock method. METHODS We retrospective...

BACKGROUND There is inadequate evidence to determine when to perform surgery on anterior cruciate ligament-deficient knees. PURPOSE To study the association between timing of anterior cruciate ligament reconstruction and the risk of having meniscal tears and cartilage lesions. STUDY DESIGN Cohort study (prognosis); Level of evidence, 2. METHODS All patients registered in the Norwegian Nat...

A 19-year-old male subject was diagnosed with medial meniscal, lateral meniscal and anterior cruciate ligament (ACL) tear. The symptoms did not subside after 4 months of physical therapy, and he underwent arthroscopic partial medial and lateral meniscectomy and ACL reconstruction. Immediately after the patient woke up from general anesthesia, he started experience loss of sensation in the area ...

BACKGROUND Meniscus tears are commonly associated with anterior cruciate ligament (ACL) ruptures. It is essential to repair meniscal tears as much as possible to prevent early osteoarthritis and to gain additional stability in the knee joint. We evaluated the results of arthroscopic all-inside repair using the Meniscal Viper Repair System (Arthrex) on meniscus tears simultaneously with ACL reco...

INTRODUCTION: The meniscus is vascularized only in the outer third and lesions occurring in the inner two-thirds heal poorly or not at all. Treatment for these types of lesions commonly involves partial meniscectomy, which can lead to long-term joint degeneration. A cellbased tissue-engineered construct can be employed for treating lesions occurring in the avascular inner zone of the knee menis...