Lead author Dr. Duong Nguyen said, “Our research noted that female patients under the age of 25 with a [smaller] graft size of less than eight millimeters have an increased chance of re-tearing their ACL following reconstruction.”
Factors that could contribute to a repeat injury in females include changing estrogen levels, anatomical differences, and decreased knee strength.
Nguyen continued, “Given the results of our study, we feel that surgeons should counsel their younger, female patients accordingly and consider modifying their surgical techniques to utilize larger size grafts and/or rehabilitation strategies to lessen the chance of a re-tear.”