View clinical trials related to Knee Dislocation.
Filter by:The purpose of this study is to investigate effects of timing of surgery (early vs. delayed) and timing of post-operative rehabilitation (early vs. delayed) for the treatment of military personnel and civilians that sustain a multiple ligament knee injury. To achieve this overall objective of this project, we will conduct two parallel randomized clinical trials. For the first study we will randomize individuals to timing of surgery and timing of post-operative rehabilitation. We hypothesize that early surgery, early rehabilitation and the combination of early surgery with early rehabilitation will lead to an earlier and more complete return to pre-injury military duty, work and sports and better patient-reported physical function. In the second study, those whose timing of surgery can not be randomized, will be only randomized to early or delayed rehabilitation. For this study, we hypothesize that early rehabilitation will lead to an earlier and more complete return to pre-injury military duty, work and sports activity and better patient-reported physical function.
Knee dislocation is a serious injury, usually caused by high-energy trauma. It is classically defined as complete loss of articular congruence between the femur and the tibia, confirmed by radiography. However it is common that the reduction happens spontaneously. For this reason, today the investigators also consider a patient suffered knee dislocation in the presence of multi-ligament injury involving the posterior cruciate ligament, often in association with anterior cruciate ligament, lateral and/or medial ligamentous complex. It is considered a serious injury, because both the strong association with vascular and nerve damage, which can lead to the need for limb amputation, such as the difficulty in obtaining a good functional outcome even after treatment of all ligament injuries. The treatment of these injuries aims to achieve knee stability. Joint mobility is often sacrificed in the postoperative period, with the use of immobilizations such as casts, splints or bracing. Unfavorable clinical outcomes with high rates of stiffness and joint pain are very common in these patients. In attempts to improve these results, rehabilitation protocols with early range of motion can be employed. However, results may remain unsatisfactory, predominantly because of knee instability recurrence. Stannard and Zaffagnini proposed a new model for treatment of acute knee dislocations. In this model, after multi-ligament reconstruction or repair, a knee articulated external fixator is used. Such external fixator allows early and aggressive joint mobility in the sagittal plane only. Flexion and extension are permitted, but rotational movements, translations in the anterior-posterior plane, lateral (varus) and medial (valgus) openings are not allowed. Thus protective stability is ensured for ligament reconstruction procedures. Simultaneously the investigators allow immediate joint mobilization, reducing the risk of arthrofibrosis, joint stiffness and postoperative ligament laxity. There is no consensus regarding the use of hinged external fixator postoperatively in multiple ligament reconstruction procedures for treatment of knee dislocations. The objective of this study is comparing functional outcomes after ligament reconstruction in patients with knee dislocation, with or without the use of hinged external fixator.
A knee dislocation is an unusual and extremely serious injury and is defined as complete displacement of the tibia with respect to the femur, usually with disruption of 3 or more of the stabilizing ligaments. When the knee dislocates, there is often significant damage to the soft-tissues envelope surrounding the joint, including adjacent neurovascular structures. Not surprisingly, this injury is a profoundly debilitating, life-altering event, with the potential to necessitate career change in athletes and laborers alike. Current evidence indicates that operative management for these injuries is more effective at returning patients to pre-morbid range of motion (ROM) and activity than conservative management. Post operative rehabilitation programs for these patients must balance the need for stability of their surgical repair and knee ROM and functionality. Experimental data suggests that post-operative immobilization offers greater protection of the surgical reconstruction, whereas immediate, aggressive physiotherapy may be more effective at preventing arthrofibrosis stiffness. The investigators are proposing a randomized clinical trial comparing early physiotherapy (day one post op) versus immobilization for three weeks then initiation of physiotherapy. The physiotherapy progams will be identicalbe in all aspects except for progam initiation.
The purpose of this project is to evaluate the effect of the Compass™ Universal Hinge external fixator on the outcome of patients following acute dislocation of the knee