A tear may be partial or complete. Considerations The knee joint is located where the end of the thigh bone femur meets the top of the shin bone tibia. Four main ligaments connect these two bones: Medial collateral ligament MCL runs along the inside of the knee.
Juan Camilo Yepes The knee is the most complex and largest joint in the human body, and it depends on four primary ligaments.
A direct blow to the knee is one of the ways to injure the ACL, for example during football or a traffic accident. Nevertheless, most ACL injuries happen even without any contact with another object. There are many traditional methods and devices to assist treatment.
Nevertheless, robot-assisted therapy RAT rehabilitation, simulating normal walking to examine the effects of long-term interventions on functional activity levels after ACL reconstruction, improves the walking ability, the balance ability, and the extensor strength after ACL reconstruction.
However, ACL injuries require various rehabilitation phases. Therefore, there is the need to perform RAT or mechatronic-assisted rehabilitation of ACL Injuries during other phases of the rehabilitation before attempting an advanced exercise such as walking, e.
In this rehabilitation phase, an active-assisted rehabilitation exercise must be conducted. The specific problem addressed in this thesis is to detect the motion intention and control a mechatronic rehabilitation system to assist the knee movement, i.
Therefore, the scope of this thesis was to develop a myoelectric control MEC for active-assisted exercises with a possible application in the rehabilitation of ACL injuries. A sEMG signal processing algorithm which detected the motion intention was selected from a literature review.
Subsequently, an experimental protocol was conducted with healthy-subjects with the purpose of obtaining a collection of surface electromyography sEMG signals for its use in the study.
A sEMG signal processing algorithm was developed, based on the selection, in order to assess the detection of motion intention. The results showed that the sEMG signal processing algorithm detected the intensity of the movement intention, approximately, in a comparable way to the MVC.
Moreover, the algorithm detected the orientation of the movement intention, i. Also, it requires no prior training with sEMG signals from other subjects.
Moreover, no additional torque sensor is required to estimate the conversion coefficients. Later, a movement control algorithm was selected from a literature review and the movement control algorithm was developed online, as an HIL simulation, for mechatronic-assisted rehabilitation based on exercises and movements associated with therapies for ACL injuries.
The test of the movement control algorithm showed that the system is capable of reproducing trajectories associated with ACL rehabilitation protocols. Finally, this thesis tested and assessed the behavior of the myoelectric control algorithm for mechatronic-assisted rehabilitation and its possibilities to support rehabilitation therapies for ACL injuries, through a protocol of tests.
The results showed that the MEC algorithm is a potentially useful tool for the implementation of a mechatronic-assisted rehabilitation protocol for ACL injuries. The primary preventive programme of the injuries of frontal cruciate ligament and ankle joint includes specific kinaesthetic, neuromuscular and balance training Caraffa et al, ; Cimino, ; Faizullin and Faizullina, The greatest risk of ACL injury is especially high when player is tackling the opponent and kicking the ball Brophy et al, ;Walden et al, If you tear the anterior cruciate ligament (ACL) in your knee, you may need to have reconstructive surgery.
The ACL is a tough band of tissue joining the thigh bone to the shin bone at the knee joint.
It runs diagonally through the inside of the knee and gives the knee joint stability. It also. The posterior cruciate ligament (PCL) is a ligament within the nationwidesecretarial.comnts are tough bands of tissue that connect bones. The PCL -- similar to the anterior cruciate ligament (ACL) -- connects.
A surgeon will remove the damaged ACL and replace it with tissue to help a new ligament grow in its place.
With physical therapy, people who have surgery can often play sports again within 12 months. One of the most common knee injuries is an anterior cruciate ligament sprain or tear. Athletes who participate in high demand sports like soccer, football, and basketball are more likely to injure their anterior cruciate ligaments.
An ACL sprain occurs when there is damage to the anterior cruciate ligament (ACL), a major knee ligament that is located inside the knee. The ACL is the main stabilizing ligament of the knee for sudden stopping, starting, cutting and pivoting movements.
Feb 18, · The present review classifies and describes the multifactorial causes of anterior cruciate ligament (ACL) surgery failure, concentrating on preventing and resolving such situations. The article particularly focuses on those causes that require ACL revision due to recurrent instability, without.