精准定制引导下胫骨结节前内侧移位术
简介
该研究提出基于3D影像测量髌骨进入股骨滑车入口点至滑车沟冠状面距离(EP-TG),用于指导复发性外侧髌骨不稳的胫骨结节前内侧移位截骨术(AMTTO)规划。作者认为EP-TG距离较传统TT-TG距离和髌骨高度更稳定,可为手术决策提供更可靠依据。文章为技术介绍性内容,证据等级有限。
英文摘要
Recurrent lateral patella instability is primarily a result of lateral patella entry to the femoral trochlea. Using 3-D imaging, one can accurately assess this lateral entry more accurately than with plain radiographs, making 3-D imaging important for optimal surgical planning, particularly when deciding whether to do an anteromedial tibial tubercle transfer osteotomy (AMTTO). To understand the laterality of patella entry to the femoral trochlea of a patient, one must understand the patella entry zone and its midpoint, defined as the entry point (EP) to the trochlea, and then measure its coronal distance from the central femoral trochlea groove (TG)-the EP-TG distance. This fixed EP-TG distance, when considered together with the more variable (and therefore potentially misleading) TT-TG distance and patella height, provides a strong basis for surgical decision-making with regard to anteromedial tibial tubercle transfer planning.