• Training
  • 16/09/2025
  • UK

TT-TG Distance

Description

Dr Laurie Hiemstra gives her expert insights and discusses the significance of measuring the distance related to the trochlear groove and other anatomical features in diagnosing knee issues. She emphasizes that an abnormal distance may indicate problems with knee rotation, whether stemming from the trochlear groove, rotation issues, or lateralized tubercle, suggesting a pathological condition. Dr Hiemstra points out the importance of distinguishing normal measurements from those indicating dislocation, highlighting that a TTG (tibial tuberosity to the trochlear groove) difference of only a few millimeters can categorize the condition.


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DOI: 10.1302/3114-251199

Specialties