van der Wal RJP, et al. - Authors ascertained the early bone mineral density (BMD) changes in the knee after meniscal allograft transplantation (MAT). In the first two postoperative years, a significant influence of MAT on BMD was not seen. Significant higher bone mineral density was seen in nearly all regions of interest (ROIs) in MAT knees at almost all follow-ups vs healthy contralateral knees. Slight but not statistical decrease was seen in BMD of the healthy contralateral knees in the first postoperative year, where it normalized to baseline values at two-year follow-up.