2021 Annual Meeting Knee Access Pass-Plain Radiography versus MRI in the Measurement of Tibial Slope: Can they be Used Interchangeably?

Plain Radiography versus MRI in the Measurement of Tibial Slope: Can they be Used Interchangeably?

Video Transcription

Video Summary

The summary of the video is that the posterior tibial slope plays a crucial role in knee biomechanics. Changes in slope can impact knee flexion, resting position, ligament tension, and chondral contact pressures. The video discusses a study comparing slope measurements on X-rays and MRIs. The results show that X-rays consistently measure a higher slope than MRIs, indicating a three to four-degree difference. The study concludes that while slope measurements can be reliably reproduced on both imaging methods, caution should be exercised when comparing X-rays and MRIs for preoperative planning. The limitations of the study include not using CT scans and difficulty in standardizing MRI cuts. No credits were granted in the video.

Asset Caption

Dr. Alexander Weber

Keywords

posterior tibial slope

knee biomechanics

slope measurements

X-rays

MRIs