The system in order includes the top and bottom side surface displacement device, to remedy the joint of the vertebral body of the patient. The Kaminoseki nodal surface device, in order to match the form of the upper joint of the vertebral body aspect, includes the surface substitution product which is formed, the Shimonoseki nodal surface device, in order to match the form of the lower joint of the vertebral body aspect, includes the surface substitution product which is formed. The respective surface substitution product, although from relatively level state, the surface substitution product, under existing of compression, also each versatile concave surface of the joint of the vertebral body aspect which corresponds moves to an interposition state where it agrees substantially, shows sufficient flexibiility. With this structure, as for this system, it can establish the new sleeve surface inside the joint of the vertebral body, it is possible to interpose with invasion of minimum. As for the surface substitution product, it is possible, from the polyether ether ketone (PEEK) to form, it is possible to include the tooth part who engages the joint of the vertebral body surface which corresponds.上下側表面置換装置を含む、患者の椎間関節を治療するためのシステム。上関節面装置は、上椎間関節面の形状と一致するように構成された表面置換体を含み、下関節面装置は、下椎間関節面の形状と一致するように構成された表面置換体を含む。それぞれの表面置換体は、比較的平らな状態から、表面置換体が、圧縮力の存在下で、対応する椎間関節面のいずれの多面凹面とも実質的に一致する挿入状態に移行するのに十分な可撓性を示す。この構造によって、本システムは、椎間関節内に新規摺動界面を確立することができ、最小限の侵襲で挿入することができる。表面置換体は、ポリエーテルエーテルケトン(PEEK)から形成することができ、対応する椎間関節面を係合する歯部を含んでもよい。
