The adjustable modular spacer device (1) for the knee joint is fixed to the tibia part (3) suitable for being fixedly coupled to one end of the tibia near the knee joint and to one end of the femur near the knee joint. And a femoral portion (2) adapted to contact and articulate with the tibia (3), the femoral portion comprising at least one condylar joint (7, 8) and an intercondylar central body The intercondylar central body (6) and the at least one condylar joint (7, 8) are separate parts of the femur (2).膝関節用の調節性モジュール式スペーサ装置(1)は、膝関節に近い脛骨の一端に固定的に結合されるのに適する脛骨部(3)と、膝関節に近い大腿骨の一端に固定的に結合され、脛骨部(3)と接触し関節で結ばれるのに適する大腿骨部(2)とを備え、大腿骨部は少なくとも一つの顆状関節部(7、8)と顆間中央本体(6)とを備え、顆間中央本体(6)と少なくとも一つの顆状関節部(7、8)は大腿骨部(2)の別個の部分である。