Functional bracing of ACL injuries: Current state and future directions

OBJECTIVE: Functional orthosis braces are generally used to treat anterior cruciate ligament (ACL) injuries. The results of existing literature on the use of functional appliances vary. The purpose of this research was to evaluate the history and current status of functional ACL support and to identify design criteria that can improve existing support technologies. Method In April 2013, the keywords "anterior cruciate ligament" and "brace" were searched using the PubMed MEDLINE database for bibliographic search. Articles published between January 1, 1980 and April 4, 2013 were searched and reviewed. A functional scaffold for the treatment of ACL lesions is currently identified. The function of the native ACL was carefully considered to determine the design requirements that can improve existing support technologies. Results Zero time function The biomechanical evaluation of the brace effect was mixed. Although it has been reported that long-term patient outcome after ACL reconstruction using functional devices is not improved, it has been shown to reduce ACL deficiency and subsequent damage rate in skier reconstruction. The in-situ force in the ACL varies with flexion angle and activity. At the moment, there is no brace design and verification to reproduce the force-buckling behavior of the native ACL. Conclusion Biomechanics and clinical evidence suggest that current functional assistive technologies can not properly repair the normal biomechanics of ACL-deficient knee joints, protect the reconstructed ACL, and improve patient's long-term outcome . Functional appliances designed to apply force to the knee joint should be further studied in size as well as natural ACL. Evidence Level III

Functional ACL braces are often used to stabilize the knee and prevent further injuries. Most functional stents contain hard frames. Since proper adjustment is essential, well-trained experts work with the brace for the patient. The modern functional bracket is lighter and smaller than the old model. Patients found that they are easy to apply and that comfort is comfortable. After surgery, the patient starts a systematic rehabilitation program. Patient commitment and participation is important for good functional outcomes. The specific exercise and schedule will depend on the source of the graft used and whether the surgical repair was done on other damaged structures.

OBJECTIVE: Functional orthosis braces are generally used to treat anterior cruciate ligament (ACL) injuries. The results of existing literature on the use of functional appliances vary. The purpose of this research was to evaluate the history and current status of functional ACL support and to identify design criteria that can improve existing support technologies. Method In April 2013, the keywords "anterior cruciate ligament" and "brace" were searched using the PubMed MEDLINE database for bibliographic search. Articles published between January 1, 1980 and April 4, 2013 were searched and reviewed. A functional scaffold for the treatment of ACL lesions is currently identified. The function of the native ACL was carefully considered to determine the design requirements that can improve existing support technologies. Results Zero time function The biomechanical evaluation of the brace effect was mixed. The in-situ force in the ACL varies with flexion angle and activity. Evidence Level III

No surgery is necessary for all ACL injuries. Partial tears showing a relatively stable knee for physical examination can be treated with support and rehabilitation. Even some patients with complete ACL lacerations do not require reconstruction. These "glasses" are normally older patients with less physical activity and are not involved in pivoting and cutting activities. Diagnosis of ACL lacerations does not necessarily require MRI. Tears of ACL can be accurately diagnosed by physical examination. However, if the knee is very swollen and painful, accurate examination will be difficult. In addition, MRI can be used to reveal other related lesions such as meniscal tears, PCL tears or other support structures.