Kazan medical journalKazan medical journal0368-48142587-9359Eco-Vector4701210.17816/kazmj47012MiscellaneousА. N. Zimin. On the statistics of injuries of the knee flexor apparatus (2 cases of cup fracture and 2 cases of rupture of the patella intrinsic ligament). "Surgery", vol. XII, no. 71OvchinnikovP.info@eco-vector.com1001190331-245451510202015102020Copyright © 2020, Ovchinnikov P.2020<p>Regarding the 4 cases of damage to the knee extensor apparatus observed by the author, he collected some statistical data regarding the types of damage described by him.</p>Kazan Medical archiveКазанский медицинский архив