Measurement of Tibial Tubercle to Trochlear Groove (TT-TG …
Patellar translation (TT-TG distance) | Radiology …
TT-TG distance | KNEEguru, Patellar translation (TT-TG distance) | Radiology …
measure the distance between TT and TG = TT-TG distance; Interpretation. normal: 20 mm; The distance has been.
The TT-TG distance is normally about 9mm, and if it´s more than 15-20mm then it means that the alignment is poor, and there is increased stress upon the patella simply as a.
TT-TG distance was associated with the natural logarithm of age (p < 0.001). A percentile-based growth chart was created to demonstrate this relationship. The median TT-TG distance for patients without patellar instability in this pediatric population was 8.5 mm (mean and 95% confidence interval, 8.6 ± 0.3 mm). Patients with patellar instability had higher TT-TG distances (median, 12.1 mm; p < 0.001).12/11/2018 · What is the normal TT-TG Distance? It is normally about 9mm, and if it´s more than 15-20mm then it means that the alignment of the groove with the tendon attachment is poor, tending to pull the kneecap over to the outer side.Using MRI in a recent series of cases, Dr. Sherbondy and Ashley Anderson, MD, Penn State sports medicine orthopaedics fellow, found average TT-TG distances of 12-13 mm in patients with repeated patellar dislocation (n=30), compared to 9-10 mm in normal controls without dislocation (n=38) (Figure).RESULTS: The average TT-TG distance measured 13 mm in normal knees and 16.4 mm in pathologic knees. The variability in measurements between normal and pathologic knees varied respectively between ± 5 and ± 15 mm, with as consequence absence of threshold value between normal and pathologic knees.that a normal TT-TG distance is 10 mm or less [5, 7, 8]. A TT-TG distance greater than 15 mm in patients with patellofemoral insta-bility may predict limited benefit from phys-ical therapy [7]. A TT-TG distance greater than 20 mm is widely considered to be ab-normal [2, 9] and suggests that a distal re-alignment procedure may be beneficial in, Several studies suggest that a normal TT-TG distance is 10 mm or less [5, 7, 8]. A TT-TG distance greater than 15 mm in patients with patellofemoral instability.11/24/2018 · TT-TG distance measures the distance between 2 perpendicular lines from the posterior cortex to the tibial tubercle and the trochlear groove >20mm usually considered abnormal, Normal TT-TG distance : distance :> 20 mm Shortest distancebetween tibialtubercleand trochlear groovelines (TT-TG distance ) Associated with pathologic patellar instability Clinical Anatomic Factors Translational Forces Checklist. TibialTubercle-Trochlear Groove Distance
