Schuldes Sonja, Hackenbroch Carsten
Klinik für diagnostische und interventionelle Radiologie und Neuroradioradiologie, Bundeswehrkrankenhaus Ulm, Oberer Eselsberg 40, 89081, Ulm, Deutschland.
Klinik für diagnostische und interventionelle Radiologie, Uniklinik Ulm, Ulm, Deutschland.
Radiologie (Heidelb). 2024 Apr;64(4):278-286. doi: 10.1007/s00117-024-01284-2. Epub 2024 Mar 14.
Patellofemoral instability (PFI) describes a (sub)luxation of the patella in the patellofemoral joint. Pathophysiologically, PFI is usually due to a nonphysiological movement of the patella, so-called maltracking, either due to acute trauma with injury to the supporting ligamentous apparatus or due to the presence of anatomical risk factors. Radiologically assessable risk factors for maltracking include trochlear dysplasia, patella alta, patellar tilt, lateralization of the tibial tuberosity, torsional deformity and genu valgum. This article presents the most commonly used and best validated measurement techniques. In addition, the characteristic injury pattern after lateral patellar dislocation is shown.
髌股关节不稳（PFI）指髌骨在髌股关节内的（半）脱位。从病理生理学角度来看，PFI通常是由于髌骨的非生理性运动，即所谓的轨迹不良，这要么是由于支持韧带装置受伤的急性创伤，要么是由于存在解剖学风险因素。影像学可评估的轨迹不良风险因素包括滑车发育不良、高位髌骨、髌骨倾斜、胫骨结节外移、扭转畸形和膝外翻。本文介绍了最常用且经过最佳验证的测量技术。此外，还展示了髌骨外侧脱位后的特征性损伤模式。
