The purpose of this work was to report the main characteristics and results of all active anterior cruciate ligament (ACL) reconstruction registers along with the differences between them.

We systematically searched on Google and Medline via PubMed to identify ACL registers. National or regional registers were included if they were active and took into account ACL reconstructions. The main results and characteristics, namely the number of inclusions, exhaustivity, data collection methods and results dissemination methods were determined. The collected information was then submitted to each register for validation.

Four registers (3 national, 1 regional) were identified that routinely included every ACL reconstruction procedure. Register data were collected either through dedicated websites or on paper forms. All the registers used the same two outcome measures, namely the revision rate and a subjective patient score (KOOS score). Register results were made available through scientific publications or annual reports. The main differences between registers were in the graft choice and presence of associated meniscus and cartilage injuries.

Although there are only a few ACL reconstruction-specific registers, their scientific contribution is undeniable thanks to the quality of the collected data and the organization and collaboration between registers. Their impact on health care and science should grow in the future.