Meniscus Lesion

The value of corticosteroid infiltration of the meniscus wall in the therapeutic strategy is not clearly defined: the data in the literature on the effectiveness of corticosteroid infiltration are heterogeneous and of low level of proof. We hypothesize that corticosteroid infiltration of the meniscal wall under ultrasound control would be effective for rapid relief of degenerative meniscal pain. The main objective is to evaluate the efficacy of ultrasound-guided meniscal wall infiltration of betamethasone versus ultrasound-guided meniscal wall infiltration of placebo, at 1 month, on meniscal pain in the treatment of meniscal pain of degenerative origin in adult.

The menisci are crucial for knee stability and functionality. Composed of fibrocartilaginous structure, they have an anatomical and biomechanical arrangement that makes them essential for load transmission and the prevention of osteoarthritis. Meniscal root lesions, known as "ROOT tears," compromise their protective function on the cartilage, leading to increased contact pressures between the tibia and femur and, over time, the development of osteoarthritis. Early diagnosis of these lesions is difficult and often the first detection is incidental. The subsequent challenges are significant due to a lack of pre-operative planning. A possible solution is a surgical technique involving arthroscopic suture of the posterior meniscal root along with the posterior cruciate ligament. This procedure does not require pre-operative planning and is applicable even in cases of incidental diagnosis.

This study is a post-market follow-up study. The data collected from this study will serve the purpose of confirming the safety and performance of the JuggerStitch Device used for meniscal repair according to the product labelling (Instruction For Use).

Longitudinal meniscal tears are a type of meniscal injury characterized by a displaced fragment of the meniscus that flips over into the joint, often resembling a buckle or handle. These tears typically occur in the medial meniscus and are often associated with traumatic knee injuries, particularly in athletes. The displaced meniscal fragment can cause mechanical symptoms such as locking, clicking, or catching of the knee, as well as pain and swelling. If not properly treated, buckle-handle meniscal tears can lead to further complications, including chronic knee instability, increased risk of osteoarthritis, and persistent joint pain.Repairing a longitudinal meniscal tear offers several advantages over partial meniscectomy, particularly in preserving knee function and preventing long-term complications. Meniscal repair aims to restore the integrity of the meniscus, which plays a crucial role in load distribution, shock absorption, and joint stability. Utilizing a fibrin clot during the repair of a buckle-handle meniscal tear can enhance the healing process and improve surgical outcomes. Fibrin clots act as a biological scaffold, promoting tissue regeneration by providing a matrix that facilitates cellular migration and proliferation. The purpose of this study was to compare longitudinal meniscal tear repair reinforced with fibrin clot with routine end-to-end repair in a prospective randomized controlled trial.

This multicenter, stratified, partially randomized clinical trial aims to compare autologous semitendinosus tendon graft and meniscal allograft transplantation (MAT) in young adults with post-meniscectomy syndrome. The meniscus plays a critical role in load distribution, shock absorption, and joint stability. After meniscectomy, insufficient meniscal tissue often leads to persistent pain, swelling, and functional decline, increasing the risk of early osteoarthritis. Two reconstructive strategies are clinically available: MAT provides immediate biomechanical function but requires donor matching and carries higher costs, while autologous tendon graft offers stable supply and no immunologic risk but lacks long-term clinical validation. In this study, 40 patients aged 18-45 years will be enrolled. Participants will be allocated into four groups (randomized MAT, randomized autograft, patient-preference MAT, patient-preference autograft). All procedures will use a two-tunnel fixation technique with additional internal brace support. The primary endpoint is the improvement in KOOS (Knee Injury and Osteoarthritis Outcome Score) at 24 months postoperatively. Secondary endpoints include MRI-based assessment of graft morphology and extrusion, reoperation rate, complications, patient satisfaction, and return-to-sport time. This trial will provide critical evidence regarding the comparative effectiveness and feasibility of tendon autograft versus meniscal allograft in real-world clinical settings, potentially informing surgical decision-making and future treatment guidelines for post-meniscectomy syndrome.

The goal of this clinical trial is to learn if partial meniscal replacement can prevent or postpone total meniscal replacement, in adult patients (female/male) with partial meniscal loss. The main questions it aims to answer are: * Can partial meniscal replacement improve knee function? * Can partial meniscal replacement prevent/postpone total meniscal replacement/knee prothesis? Researchers will compare the results of the operated group with patients not willing to be operated but with partial meniscal loss to see if the operation improves knee function. Participants will be operated and have to attend follow-up visits with MRI after 6 months up to 5 years after surgery.

The main function of the meniscus is to transfer and distribute femoral pressure to the tibia. Treatment of meniscus tears is divided into conservative and surgical treatment. The most preferred methods for patients with meniscus lesions include meniscectomy and exercise therapy. The anterior and posterior horns of the meniscus contain numerous mechanoreceptors, including Ruffini endings (slow adapting) and Pacinian corpuscles (fast adapting), which provide information about the position and movement of the joint. Reduced proprioception due to mechanoreceptor damage from meniscus tears may be associated with decreased postural stability, as sensory information associated with a patient's conscious perception of joint movement through mechanoreceptors in the meniscus may contribute to postural stability. Dual task is based on the simultaneous maintenance of motor-motor or cognitive-motor performance. Dual tasking is used to evaluate the simultaneous performance of a postural task and a motor or cognitive task to examine the interaction or effect of the secondary task on primary task performance. In a purposeful movement, it is necessary to have the ability to adapt to overcome environmental loads and achieve the goal. This also involves performing a cognitive task simultaneously while performing a motor task. In knee meniscus lesions, knee joint position sense and sensory input decrease, walking speed decreases, and attention devoted to walking increases.

The purpose of this investigator-initiated trial is to evaluate whether the novel graft can prevent/reduce the disadvantages of the previously used replacement materials and shows better results than the group of patients, which were not operated. Since there is currently no alternative made of biological material to this product, this investigator-initiated trial is of great medical and economic importance. The otherwise following arthrosis or knee prosthesis implantation (TKA ) could be prevented or at least postponed. Initial clinical results are promising. An important and sensitive parameter for assessing the postoperative function of the meniscus is the MRI image. Genovese et al. 2007 were able to show in a categorization/classification which magnetic resonance image can be expected in the case of successful incorporation. Several studies have shown that the known clinical knee scores (Lysholm, IKDC, KOOS, VAS pain) improve significantly after successful ingrowth of the meniscus implant.

Medial meniscus posterior root tears (MMPRT) account for 20% or more of all meniscus tears, but the diagnosis and treatment of this condition continues to plague the general population due to the complexity of the diagnosis and uncertainty of the treatment. Early as well as timely diagnosis and treatment is one of the effective ways to avoid accelerated knee degeneration. Based on this study, our team is going to conduct a clinical study on posterior medial meniscus tear, combining Magnetic Resonance Imaging(MRI) to dynamically assess the changes of meniscus and articular cartilage surface after the injury, and selecting a specific patient group to carry out different therapeutic interventions, which mainly include conservative treatment, partial meniscectomy, and meniscal repair, in order to clarify the effects of different treatment modalities on the articular cartilage after the posterior meniscus tear, and to help to delay the degeneration of knee joints. This is to clarify the effects of different treatment modalities on the articular cartilage after posterior medial meniscus tears and to provide appropriate advice for delaying the progression of osteoarthritis of the knee.

Pulse Electromagnetic Field Therapy (PEMT) is effective in the treatment of many diseases, especially musculoskeletal system diseases, due to its analgesic effect with the effect of induced currents, and also its anti-inflammatory , edema reducing, antispasmodic and blood flow accelerating effects with additional mechanisms. The aim of our study is to evaluate the effects of Pulsed Electromagnetic Field Therapy (PEMT) degenerative To investigate the effects on pain, quality of life and function in patients with meniscal lesions.

The aim of this study is to assess outcomes of Posteromedial Tibiofemoral Incongruence (PMTFI) Treatment

The investigators intend to establish a national cohort including all persons in the ages from 15-20 years old with patellar instability (PI) or a prior knee injury (ACL-ruptur or meniscus damage) . The cohort will be nicknamed "The Faroese Knee Cohort". The overall aim is to investigate two groups. 1. The patella instability group, in which we intend to investigate the following. * Prevalence of patellar dislocation and trochlear dysplasia in the Faroe Islands. * Risk factors for patellar dislocations- * Heredity of trochlear dysplasia. * If there is a specific gene responsible for the development of trochlear dysplasia. * The development of retropatellar artrhosis, its onset and its impact on quality of life and function, 2. Knee injury group (ACL-ruptur or meniscus injury) * The prevalence of ACL-rupture and/or meniscus injury in this specific group in the Faroe Islands. * The impact on quality of life and function.