Results of Revision Anterior Cruciate Ligament Reconstruction using a Transportal Technique: An Institutional Experience

Background:As the number of ACL injuries and primary ACL reconstruction surgeries increase, the absolute number of re-ruptures has also subsequently increased. In our study, we look at the causes of failure in the primary surgery and also report the clinical and functional outcomes in our series of patients undergoing revision. Materials:We looked at all revision ACL reconstructions performed by the senior author over a 3-year period. Causes of failure were elucidated through clinical, radiological and intraoperative assessment. Outcomes of revision surgery were assessed clinically as well as functionally through the use of a variety of subjective knee scores. Results:Tunnel malposition was identified as the most common cause of failure (61.5%). There was a statistically significant improvement in functional outcomes in all patients following revision surgery, and majority (92%) were able to return to sporting activities on a regular basis. Conclusion:Tunnel malposition was found to be the most common cause of primary graft failure in our series of patients. Improved knee stability and functional outcomes can be expected following revision surgery, and majority will be able to return to some form of sporting activity, albeit at lower levels than before for some patients