View clinical trials related to ACL Reconstruction.
Filter by:This study explores ultrasonic scattering imaging technology in patients undergoing anterior cruciate ligament (ACL) reconstruction and those with shoulder musculoskeletal disorders. Ultrasonography, widely utilized for diagnosing musculoskeletal conditions, faces limitations due to factors like operator experience and equipment settings, often lacking in quantifiable disease metrics. Nakagami imaging, employing the backscattering statistical distribution model, offers a quantitative assessment method that minimizes subjective interpretation by extracting tissue properties through the interaction between ultrasound and tissue microstructure. The Nakagami model effectively describes tissue scattering statistics, enabling the identification and classification of tissue features based on specific scattering conditions. ACL reconstruction is commonly performed, with postoperative complications including joint stiffness and muscle strength decline, associated with changes in muscle quality and volume. Similarly, soft tissue injuries around the shoulder and ankle are prevalent in sports medicine, with ultrasound used to assess the severity of injuries to soft tissues such as the rotator cuff tendons/muscles and surrounding ligaments of the shoulder, as well as the medial and lateral ligament complexes of the ankle. Preliminary findings suggest that Nakagami imaging can differentiate layers within normal tendons, proposing its potential for visualizing and quantifying soft tissue lesions post-ultrasound, aiming for standardized diagnostic criteria. The results of this project could significantly improve the diagnostic efficacy of musculoskeletal ultrasound, facilitating earlier treatment and reducing the socio-economic impacts. Academically, it positions the investigating team as pioneers in the application of ultrasound inverse scattering imaging technology.
The purpose of the study is to assess the longitudinal post-operative care effects of protein supplementation on muscle atrophy in the post-operative period following ACL reconstruction. The main outcome will be muscle size/mass as measured using dual energy x-ray absorptiometry (DEXA) scanning. The primary objective is to assess for any beneficial impact of protein supplementation, with implications of standardizing a recommended protocol for protein supplementation after ACL reconstruction. Secondary outcomes will be to evaluate the survey data from the KOOS JR and Tampa Scale surveys, as well as functional measures recorded during physical therapy.
Anterior cruciate ligament (ACL) is the key ligament connecting the femur to tibia that helps stabilising the knee joint. ACL tear is common. It accounts for over 50% of all knee injuries and affects more than 200,000 people in the United States each year. Patients with ACL tear have a higher risk of developing post-traumatic osteoarthritis. ACL reconstruction (ACLR) with the attachment of tendon grafts within bone tunnels are commonly performed to restore the stability of the joint and thereby minimise injury to both the chondral surface and surrounding tissues. About 130,000 ACLR was performed in the United States in 2006. Both the incidence rates of ACL injuries and ACLR are on the rise, particularly in children and adolescents. Conventional ACLR is not a universally successful procedure, with long healing time and high rates of graft failure (2.8%) and graft laxity (18%). The average cost of an ACLR in the United States was about USD 24,707 ±15,644. The cost for revision surgery and societal cost due to absence from work and sport are expected to be even higher. The demand for a better intervention to improve the outcomes after ACLR and reduce the healing time is huge. ALN was chosen for the pilot study because it is the most studied BPs, with high bone-binding affinity and more prolonged duration of action. As a member of amino BPs, it also has higher anti-resorptive activities compared to non-amino BPs. Our encouraging results on ALN in the animal studies also provide evidence to support the trial of ALN in human. ALN have been shown to have a very good safety and tolerability profile. The common side effects of ALN are stomach pain, constipation, diarrhoea, gas, or nausea. Oral ALN seems can induce mild gastro-intestinal disturbances. However, two studies, with subjects treated with ALN for 10 months and 2.9 years, respectively, showed that ALN was not associated with any increased incidence of upper GI tract events. The serious adverse event, oesophageal cancer, has been associated with ALN. However, two published papers with long term observations of 9 and 4.5 years, respectively, showed that ALN was not significantly associated with incident oesophageal or gastric cancer compared with the control group. This study aims to evaluate the effects of oral administration of ALN on knee stability (primary), peri-tunnel bone loss, tunnel bone formation, knee laxity, knee muscle strength as well as self-reported knee symptoms, function and sports activity over 12 months in patients undergoing ACLR in a pilot study of single-blind randomised controlled trial.
We intend to survey school aged patients following ACL surgery on when they return to school. We will analyze independent variables to determine if any relationship exists that may influence the amount of time missed.
To evaluate the outcomes of patients undergoing iovera° treatment of the ISN, AFCN and LFCN on postoperative knee pain and function following anterior cruciate ligament reconstruction
This was a prospective, multicenter, randomized, open-label, phase IV trial to compare the efficacy of supplementation with plasma proteins, hydrolyzed collagen (CH), a complex of HA-CS (HC-15), and vitamin C combined with a standard rehabilitation protocol versus the standard rehabilitation protocol only after arthroscopically-assisted functional ACL reconstruction with hamstrings.
The overall goal of this project is to reduce risk of second anterior cruciate ligament (ACL) injury in vulnerable populations (active athletes between 14 = 24 years old) through the identification of relative injury risk groups based on subject-specific movement patterns prior to second injury, as well as through the determination of effect for differential rehabilitation protocols following initial ACL reconstruction and prior to return to sport. As nearly one-third of athletes who have a primary ACL injury and return to sport will experience a secondary injury, results from the proposed work will allow us to prospectively identify high risk patients who are the most appropriate recipients of enhanced treatment, including targeted training, which may reduce the risk of second ACL injury. Secondary ACL injury has the potential to end athletic careers, promote the development of osteoarthritis, and have debilitating effects on quality of life. Hence, the information gathered in this investigation will offer ACL injured athletes the optimal potential to reduce or potentially prevent these negative health effects before they are initiated.
The purpose of this study is to evaluate the effectiveness of physical therapy (PT) plus BFR training compared to PT alone (without BFR training) after ACL reconstruction in patients who require extended limited weight bearing through assessment of patient reported outcomes and functional testing. The hypothesis is that PT plus BFR training will mitigate the loss of quadriceps muscle cross-sectional area, strength, and function while also improving early clinical and functional results.
To assess the risk of lower extremity angular growth deformity following anterior cruciate ligament (ACL) reconstructions in young patients who are not yet skeletally mature. The study will compare two surgical techniques (physeal sparing vs transphyseal).
This study is being done to test whether taking testosterone can prevent loss of muscle mass and strength due to anterior cruciate ligament (ACL) reconstructive surgery. Testosterone is the principal male sex hormone and an anabolic (muscle promoting) steroid. It is essential for the development of male reproductive tissues and promotes increased muscle, bone mass, and the growth of body hair. The investigators hope to learn whether testosterone given before and after ACL reconstructive surgery will increase muscle mass and strength and potentially improve recovery time following surgery.