2024 Measuring tt-tg distance

Measuring tt-tg distance

Author: sfci

August undefined, 2024

WebTibial tubercle-trochlear groove (TT-TG) distance is a measurement generally made on CT scans that is commonly used to quantify the risk of patellofemoral instability (PFI); … WebOct 29, 2014 · Purpose Tibial tubercle–trochlear groove (TT–TG) distance is a variable that helps guide surgical decision-making in patients with patellar instability. The purpose of …

TT-TG Distance KNEEguru

WebMar 7, 2024 · 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 MRI help further … WebJul 26, 2015 · A TT-PCL distance ≥24 mm was found to be less predictive of recurrent instability in this series. For patients experiencing multiple episodes of patellar instability in the setting of a normal TT-TG distance, obtaining the TT-PCL measurement may provide a more focused assessment of the tibial contribution to tubercle lateralization. columbus to myrtle beach

Comparative study of the tibial tubercle-trochlear groove distance ...

WebThe TT-TG measurement is superior to the TT-PCL measurement for differentiating patients with patellofemoral instability from their stable counterparts, though TT-PCL may be useful in conjunction with TT-TG for better understanding the path of the extensor mechanism across the knee joint. WebThe TT-TG distance was measured on axial radiographs obtained tangential to the patello-femoral articulation with the knee flexed 30°. Subsequently, CT became the favored … WebThe resulting mean TT-TG Index was 0.12±0.05 (range 0-0.25). In the patient group, the average TT-TG distance was 13.5±4.1 mm and the average TT-TE distance was 61.3±6.8 mm. The resulting average TT-TG Index of 0.22±0.07 in the patient group (PFI) approximates the threshold determined by the 95% confidence interval in the healthy … dr troy bishop cuyahoga falls ohio

Tibial tubercle-to-trochlear groove distance: Is it the best ... - Healio

Measuring tt-tg distance

WebDec 21, 2024 · Draw a line along the posterior femoral condyles, and then draw the following lines perpendicular to this line: bisecting the tibial tuberosity (TT) bisecting the trochlear groove sulcus (TG) measure the distance between TT and TG = TT-TG distance TT-TG distance (tibial tubercle to trochlear groove distance) Treatment and … WebDownload scientific diagram Technique for measuring TT-TG distance. Axial computed tomography (A, B) and magnetic resonance imaging (C, D) scans at the level of the TG (A, …

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WebAug 16, 2024 · The TT–TG distance decreased by 0.29 mm (SD, 0.04) per one degree of increased flexion (p < 0.001). The mean TT–TG distance in millimetres was 11.1–0.29 × the angle in degrees. TT–TG values were not significantly correlated with … Webbony method: (1) line tangent to the posterior epicondyle (red), (2) perpendicular line through deepest point of the trochlea (blue), (3) line parallel to the trochlea line through the most …

WebTT-TG distance is a measurement, derived from CT or MRI scans, which gives an indication of the sideways alignment of the groove in which the kneecap slides compared to the attachment point of its tendon on the … WebTibial tuberosity (TT) to trochlear groove (TG) distances: right knee TT-TG = 24.3mm left knee TT-TG = 19.6mm Case Discussion Distance from tibial tuberosity to trochlear …

WebJun 15, 2024 · Using axial computed tomography (CT), the authors defined TT-TG as a pathological threshold of 20 mm (19.8 ± 1.6 mm), compared to a mean TT-TG measurement of 12.7 ± 3.4 mm in the control group. At the pathological threshold, 56% of the knee PFI showed a TT-TG value greater than 20 mm, compared to 3.4% in the control group. WebEleven patients (19%) had a TT-TG distance of °20 mm on CT preoperatively and underwent distal realignment by tibial tubercle osteotomy. In this surgical subgroup, the mean TT-TG distance was 22.5 mm (range, 19.8-25.8 mm) by CT and only 18.7 mm (range, 14.4-22.8 mm) by MRI for a mean difference of 3.80 mm (P<.001).

WebSep 11, 2024 · The mean difference of TT–TG distance was found to be 0.01 mm, and the mean difference of TT–RA was 0.1 mm. The values of TT–TG distance and TT–RA distance measurements on MRI can be transformed into the values on CT using the regression equations we obtained to evaluate the relative position of the tibial tubercle.

WebJul 30, 2024 · a distance >8 mm indicates trochlear dysplasia (sensitivity and specificity: 75%/83%) medial condyle trochlear offset (MCTO) measured as the distance between the medial condyle and a tangential line through the trochlear groove parallel to the posterior surfaces of the femoral condyles 9 facet asymmetry (FA) dr troy bracker methodistWebBackground: Tibial tubercle-trochlear groove distance (TT-TG) is a commonly used measurement for surgical decision making in patients with patellofemoral malalignment … columbus to new orleans direct flightsWebThe 'TT-TG distance' is a measurement of the dynamic alignment of the patella. It gives the patellar surgeon an idea of how well the groove under the patella lines up with the lower attachment of its tendon onto the shin - … columbus to ottawa flightsWebDec 11, 2024 · Objective To compare magnetic resonance imaging (MRI) using a body coil with computed tomography (CT) in measuring the tibial tubercle-trochlear groove distance (TT-TG) and the patellar... dr troy bishop ohioWebApr 8, 2024 · Blogs The surgical community has long struggled with the concept of bony malalignment in the setting of patellofemoral instability. Authors agree that a subset of … columbus to philly driveWebFeb 13, 2016 · The TT-TG distance represents the radiographic measurement of the quadriceps vector, which represents a lateral force displacement on the patella during … dr troy buchholz sumner iaWebPurpose: Tibial tubercle-trochlear groove (TT-TG) distance is a variable that helps guide surgical decision-making in patients with patellar instability. The purpose of this study … columbus to orlando flight time