In addition, the patients who have an acute PCL tear, that does not occur with other knee ligament injuries, the use of the dynamic PCL brace has been found to position the knee into such an adequate position that some patients can heal their PCL without the need for surgery. Thus, for high level athletes, we find that the use of this brace can sometimes be effective in restoring their function and trying to maximize their chance of not requiring a PCL reconstruction. In general, these are patients who have stress x-rays that are 8 mm or less for their PCL stress x-rays.
Finally, for dynamic PCL braces, we commonly see patients that have chronic high grade partial PCL tears, with stress x-rays of 5 to 8 mm, where it is difficult to determine if their inability to go down hills, down stairs, or decelerate is due to muscle weakness that can be addressed with therapy or if the PCL tear is causing them the significant functional limitations. In these patients we will commonly place them into a dynamic PCL brace as a screen. Almost always, the patients can tell within hours whether the PCL deficiency is the underlying issue and we have found that these patients are very effectively treated with a double-bundle PCL reconstruction to restore their function.
The Rebound ACL brace, which has just recently been developed, was invented based upon the excellent response that we had with improving patient function with a dynamic PCL brace. In many circumstances, patients may have an ACL reconstruction that has a higher chance of failure. In these patients, using a dynamic PCL brace to best decrease the force on an ACL reconstruction graft can maximize their chance of healing. These include patients who have allograft ACL reconstructions, patients with hamstring or other soft tissue reconstructions who have generalized laxity (usually with a heel height of 5 cm or more), some quadriceps tendon ACL reconstruction grafts, and revision ACL reconstruction grafts. The use of the dynamic ACL Rebound brace will decrease the force on these reconstructions and we feel that our bench-to-bedside research will ultimately demonstrate that our outcomes will be significantly improved in these cases also.
Read more about the Rebound ACL and PCL Knee Brace