Measuring tt-tg
WebSep 11, 2024 · The measurement of TT–TG distance was in accordance with the Camp method . The bony landmarks were used for calculations. The most proximal slice that depicted complete cartilaginous trochlea and posterior condyles was used to define the deepest point of the bony trochlear groove. The first craniocaudal image shows a … 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 …
Measuring tt-tg
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WebFeb 19, 2014 · TT-TG distance measured nearly 2 mm less on MRIs performed with a 3-T magnet than on those acquired with a 1.5-T magnet (p < 0.001). TT-TG distance changes with chronologic age in the pediatric... 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 …
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 … WebMethods: TT-TG was calculated by MRI on 59 knees with a clinical diagnosis of patellar instability in a blinded and randomized fashion by two musculoskeletal radiologists using …
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 … WebMay 5, 2015 · To summarize, TT–TG distance should be reported in patellofemoral pain syndrome patients and MRI measurement suffices for the above purpose. Conclusion Quantitative trochlear parameters (TT–TG, TA and TD) can be reliably calculated on CT and MRI, and abnormal TT–TG distance is the most useful measurement among various …
WebJun 14, 2024 · TT-TG is a reflection of the clinically measured Q angle. A high Q angle or TT-TG would exert a lateral pressure on the patella during knee extension, and if this is not counteracted by vastus medialis muscle contraction, it can predispose to lateral patellar subluxation and instability [ 39, 40 ].
WebApr 1, 2024 · The method of TT-TG ratio measurement was similar to that of Cao et al. 8 It was measured by CT. TT-TG ratio was calculated by dividing the TT-TG distance by the TPW. First, the femoral posterior condylar line (FPCL), which was a tangent line to the femoral posterior condyles was drawn. death walker usaWebThe TT-TG distance can vary between CT and MRI and also within MRIs depending on the position of the knee. The TT-TG distance increases at the end of extension. So if you use a body coil to scan the knee the knee will … deathwalker wowWebMeasurement of Tibial Tubercle to Trochlear Groove (TT-TG) Distance by MRI for Patellofemoral Instability Patellar instability, with repeated lateral dislocation, commonly … deathwalker\\u0027s wardWebApr 25, 2024 · The TT-TG measurement was taken by drawing lines from each respective landmark perpendicular to the posterior femoral condylar line with this methodology being repeated for the PT-PCL in relation to the posterior tibial condylar line. Each observer was blinded to the MRI findings as well as to the measurement recorded by their counterpart … death walker where to watchWebMeasurement of tibial tubercle-trochlear groove (TT-TG) distance is valuable in planning surgical treatment for patellar instability, because it quantifies a component of malalignment and aids in deciding whether to perform tibial tuberosity osteotomy. death walking deaddeath walks 2016WebJun 8, 2024 · Bland-Altman analysis of the two measurement methods showed that the mean difference between the TT-TG and TDR-TT-TG distances was d = 0.04 mm, and the … death walking stick farming tool