222222222222The invention concerns a joint spacer in particular a knee spacer and a hip spacer. In order to produce a long lasting joint spacer which is sufficiently cushioned and abrasion resistant and which can also support locally very hig h loads the invention proposes a joint spacer having a Shore A hardness of between 20 and 77 and tensile stress values at unit strain of between 20 % and 60 % preferably 50 % of greater than 3.8 N/mm preferably of greater than 4.6 N/mm and particularly preferably of greater than 6 N/mm and/or compressive stress values at linear compression of between 20 % and 60 % preferably 50 % of greater than 7.8 N/mm preferably of greater than 9 N/mm and particularly preferably of greater than 10.5 N/mm and/or a Shore A hardness of up to 85 and tensile stress values at unit strain of between 20 % and 60 % preferably 50 % of greater than 6 N/mm preferably of greater than 7 N/mm and particularly preferably of greater than 8 N/mm and/or compressive stress values at linear compression of between 20 % and 60 % preferably 50 % of greater than 10.5 N/mm preferably of greater than 12 N/mm and particularly preferably of greater than 14 N/mm.
