骨科英文书籍精读（297）｜急性膝关节韧带损伤（2）
我们正在精读国外经典骨科书籍《Apley’s System of Orthopaedics and Fractures》，想要对于骨科英文形成系统认识，为以后无障碍阅读英文文献打下基础，请持续关注。
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Depending on the position of the knee, some will act as primary and others as secondary stabilizers. At 30 degrees of flexion, the MCL is the primary stabilizer.
The main checks to varus angulation are the iliotibial tract and the lateral collateral ligament (LCL).Structures forming the posterolateral corner of the knee also make an important contribution to stability; they comprise the popliteus tendon, the capsule and the arcuate ligament – a condensation of fibres lying posterior to the LCL and running from the fibula over popliteus tendon to the posterior capsule (Fig.30.1b). The iliotibial band and LCL are the primary stabilizers to a varus stress between full extension and 30 degrees of flexion; however, as flexion increases, the LCL relaxes and the posterolateral structures come into play to provide additional stability.
---from 《Apley’s System of Orthopaedics and Fractures》
重点词汇整理：
primary secondary 主要/次要
The main checks to varus angulation are the iliotibial tract and the lateral collateral ligament (LCL).内翻角主要检查髂胫束和外侧副韧带。
iliotibial tract 髂胫束 iliotibial band
the popliteus tendon, the capsule and the arcuate ligament腘肌腱，关节囊和弓状韧带
arcuate/'ɑrkjʊɪt/adj. 弓形的，弯曲的
The iliotibial band and LCL are the primary stabilizers to a varus stress between full extension and 30 degrees of flexion。髂胫束和外侧副韧带是膝关节由完全伸展到屈曲30度范围之间活动时内翻应力的主要稳定装置。
provide additional stability.提供额外的稳定性。
百度翻译：
根据膝盖的位置，一些将作为主要的和其他的辅助稳定。屈曲30度时，MCL是主要的稳定器。
内翻角度的主要检查点是髂髂束和外侧副韧带（LCL）。构成膝关节后外侧角的结构对稳定性也有重要贡献；它们包括腘肌腱，囊和弓状韧带-位于LCL后面的纤维凝结物，从腓骨到腘肌腱到后囊（图30.1b）。髂胫束和LCL是完全伸展和30度屈曲之间内翻应力的主要稳定剂；然而，随着屈曲的增加，LCL放松，后外侧结构发挥作用，以提供额外的稳定性。