Loskutov A E
Ortop Travmatol Protez. 1990 Sep(9):21-4.
In an effort to study the causes of postoperative instability of ankle joint endoprostheses, local mechanical properties of the osseous tissue of tibia and talus were studied in terms of physiological loading on 19 cadaverous preparations in the zones, subjected to resection with the purpose of implant setting. High sensitivity of spongiosa tissue to the local mechanic action and significant reduction of the strength characteristics to the depth from subchondral layer have been noted. It has been ascertained that the main cause of the postoperative instability is the excessively voluminous bone resection, dictated by the structural limitations of the used endoprostheses. Admissible tibia and talus resection zones in case of ankle joint prosthetics have been determined.
为了研究踝关节假体术后不稳定的原因，在19具尸体标本上，针对为植入假体而进行切除的区域，根据生理负荷研究了胫骨和距骨骨组织的局部力学性能。已注意到松质骨组织对局部机械作用高度敏感，且从软骨下骨层向深部强度特性显著降低。已确定术后不稳定的主要原因是所用假体的结构限制导致的过度大量骨切除。已确定踝关节假体植入时胫骨和距骨的可允许切除区域。
