Active clinical trials for "Anterior Cruciate Ligament Injuries"

Anterior cruciate ligament (ACL) is a common pathology (37 000 operations in 2006, nearly 43 000 in 2012 in France) justifying more and more operating indications in younger and younger patients. 70-80% of ACL ruptures occur without contact, which makes it a major public health interest because of its frequency and accessibility in terms of prevention. The place of isokinetic assessment is important pre and postoperatively so that it has become systematic.

The role of hamstring has been studied in anterior cruciate ligament (ACL) injury prevention, mainly to counteract the anterior tibial translation , especially when contracting eccentrically, but also with passive stiffness. However, little is known about the passive hamstring stiffness after ACL reconstruction (ACLR). The primary objective of this study is to evaluate the passive stiffness of hamstring muscles after ACLR by using an isokinetic device. Secondary, we aimed to test the individual and surgical characteristics associated with hamstring stiffness and the impact of hamstring stiffness on RTS and knee re-injury. The hypotheses are that hamstring stiffness will be lower in the ACLR leg compared to the uninjured leg and to healthy individuals. Also, we hypothesized that hamstring stiffness will be lower after hamstring autograft compared to patellar tendon autograft and will increase progressively after ACLR to be symmetrical at the time for RTS. Also, we hypothesized that hamstring stiffness could be associated with better outcomes at RTS (RTS at same level and lower re-injury rates)

The study will be intended to translate and check if the Urdu Version of Lysholm Knee Scoring Scale is reliable and valid in the Pakistani patients with anterior cruciate ligament injuries.

The purpose of this study is to examine the long-term appearance and resorption rate of biocomposite screws used during ACL reconstruction on X-ray and computed tomography (CT).

Anterior cruciate ligament (ACL) is a frequent and disabling injury in athletes. Most of the time, ACL reconstruction (ACLR) is consider for regaining function and returning to preinjury sports while reducing the risk of secondary injuries. However, the risk of secondary severe knee injury is increased after ACLR, especially in athletes returning to strenuous activities. If strength symmetry is considered as an important factor in the Return-to-sport (RTS) decision, there is conflicting data about the association between strength symmetry and the risk of second knee injury after ACLR. The main objective of this study was to test if knee muscles strength symmetry at 4 months was associated with the psychological readiness and incidence of subsequent severe injury of both knees at a minimum 2 years follow-up after ACL-R.

Patients with anterior cruciate ligament (ACL) injury often suffer knee instability, which can be visualized as a wobbling knee during weight bearing exercises, such as the single leg squat. We propose to use the single-leg-squat-and-hold (SLSH) task with kinematic analysis to objectively evaluate dynamic knee stability in ACL injured patients. The aim of this study is (1) to compare knee kinematic variations capturing knee wobbling during SLSH between ACL subjects and healthy controls; and (2) to detect the changes in knee kinematic variations during SLSH following ACL reconstruction.

The aim of this study is to evaluate knee function, sports participation and knee reinjuries over 2 years in a group of patients who choose either nonsurgical or surgical treatment for an anterior cruciate ligament (ACL) injury

No former studies have done long-term evaluation on patients reconstructed with hamstrings graft, the use of Howells tibial guide and transtibial drilling of the femoral graft tunnel. The investigators aim to evaluate clinical, radiographic and subjective outcome at a minimum of 10 years after surgery. According to former published studies on alike methods, the use of transtibial drilling of the femoral graft tunnel causes an increased rotational instability of the knee. The investigators aim to map the clinical stability of this group as well as evaluating the general outcome at the long-time horizon.

Patients who were surgically treated with ACL reconstruction at a single clinic between 2013 and 2018 will be approached by a questionnaire regarding their return to sport after surgery. Questions will focus on the timepoint of the return, subsequent injuries, and the impact of the initial injury on the life of the patients. In addition, existing clinical data from the baseline visit and from the follow-up visits offered routinely to the patient will be used.

Recent studies report that as few as 44% of athletes undergoing ACL reconstruction were able to return to their prior level of competitive level of sports. Early return may predispose an individual to re-injury including graft re-tear, meniscal tears, chondral injuries, and contralateral knee injuries. Criteria governing clearance to return to sports after ACL reconstruction has been traditionally defined using time from surgery and one or two objective criteria, often solely isokinetic quad/hamstring strength. Several studies have suggested that historical criteria used to assess readiness to return to play (RTP) are insufficient in identifying individuals at risk of a re-injury. They advocate for additional functional and dynamic testing, which may better reflect the complex kinematics required in high level athletic competition. We previously developed a "Safe Return to Play Following ACL Reconstruction Checklist" based on a systematic review of the literature and expert survey. Seven objective measures were developed as part of the checklist. The checklist is performed by a certified physical therapist trained in these performance tests. The purpose of this study is to validate the utility of our "Return to Play Checklist" by evaluating our patients prospectively for return to play following ACL reconstruction by comparing a cohort of patient undergoing testing with the checklist versus "clinical judgement."