髌后软骨损伤在受压状态下的磁共振成像诊断：与组织学结果的比较
MR diagnosis of retropatellar chondral lesions under compression. A comparison with histological findings.
作者信息
Andresen R, Radmer S, König H, Banzer D, Wolf K J
机构信息
Department of Radiology, Steglitz Medical Centre, Free University of Berlin, Germany.
出版信息
Acta Radiol. 1996 Jan;37(1):91-7. doi: 10.1177/02841851960371P118.
PURPOSE
The aim of the study was to improve the chondromalacia patellae (CMP) diagnosis by MR imaging under defined compression of the retropatellar cartilage, using a specially designed knee compressor. The results were compared with histological findings to obtain an MR classification of CMP.
METHOD
MR imaging was performed in in vitro studies of 25 knees from cadavers to investigate the effects of compression on the retropatellar articular cartilage. The results were verified by subsequent histological evaluation.
RESULTS
There was a significant difference in cartilage thickness reduction and signal intensity behaviour under compression according to the stage of CMP.
CONCLUSION
Based on the decrease in cartilage thickness, signal intensity behaviour under compression, and cartilage morphology, the studies permitted an MR classification of CMP into stages I-IV in line with the histological findings. Healthy cartilage was clearly distinguished, a finding which may optimize CMP diagnosis.
目的
本研究的目的是通过使用专门设计的膝关节压迫器，在髌后软骨特定压迫条件下，利用磁共振成像（MR）改善髌骨软骨软化症（CMP）的诊断。将结果与组织学结果进行比较，以获得CMP的MR分类。
方法
对25具尸体的膝关节进行体外MR成像研究，以探讨压迫对髌后关节软骨的影响。随后的组织学评估验证了结果。
结果
根据CMP的阶段，受压时软骨厚度减少和信号强度表现存在显著差异。
结论
基于软骨厚度的减少、受压时的信号强度表现以及软骨形态，本研究允许根据组织学结果将CMP在MR上分为I-IV期。健康软骨能够被清晰区分，这一发现可能会优化CMP的诊断。
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