| abstract |
The 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 high 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 2 , preferably of greater than 4.6 N/mm 2 and particularly preferably of greater than 6 N/mm 2 , and/or compressive stress values at linear compression of between 20 % and 60 %, preferably 50 %, of greater than 7.8 N/mm 2 , preferably of greater than 9 N/mm 2 , and particularly preferably of greater than 10.5 N/mm 2 , 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 2 , preferably of greater than 7 N/mm 2 , and particularly preferably of greater than 8 N/mm 2 , and/or compressive stress values at linear compression of between 20 % and 60 %, preferably 50 %, of greater than 10.5 N/mm 2 , preferably of greater than 12 N/mm 2 , and particularly preferably of greater than 14 N/mm 2 . |