Performing medial meniscus allograft transplantation in combination with anterior cruciate ligament (ACL) reconstruction is technically demanding. Medial meniscus allograft transplantation in combination with ACL reconstruction may be indicated for patients with meniscal deficiency in whom ACL reconstruction has failed and patients with medial-sided knee pain secondary to meniscal deficiency in combination with ACL deficiency. Despite the complex nature of this combined surgical procedure, numerous studies have reported considerable clinical improvements at midterm and long-term follow-up. This technique article describes the indications, preoperative considerations, surgical technique, postoperative rehabilitation, and outcomes of medial meniscus allograft transplantation in combination with ACL reconstruction.