Abstract
There are many graft choices for anterior cruciate ligament (ACL) reconstruction, including autografts and allografts. The choice of graft has been identified as a significant factor affecting the outcome of ACL reconstruction. This study aimed to determine whether allograft or autograft is better for avoiding revisional ACL reconstruction. The National Health Insurance Service-Health screening database analyzed 146,122 patients who underwent ACL reconstruction surgery from Jan. 1, 2002, to Dec. 31, 2021. The study was conducted in two groups, autograft or allograft, and the rates of revision ACL reconstruction between the two groups were compared. Propensity score matching and multivariable Cox Proportional Hazard model analysis were used. The significant predictors for complications (p < 0.05) were as follows. The total of patients with ACL reconstruction was 146,122. Allograft was used in 121,148 patients, and autograft was used in 24,974 patients. 9.2% of the allograft group and 8.7% of the autograft group underwent revision ACL reconstruction. (P < .0001) 70.0% & 63.6% of patients underwent revision surgery within 1 year in the allograft & autograft groups, respectively. In summary, using autograft in primary ACL reconstruction is helpful in lowering the rate of revision surgery.
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