the normal value of tibial tubercle trochlear groove distance in patients with normal knee examinations using mri
نویسندگان
چکیده
abstract patellar instability is a multifactorial common knee pathology that has a high recurrence rate, and the symptoms continue and ultimately predispose the patient to chondromalacia and osteoarthritis. tibial tuberosity-trochlear groove distance (tttg) is very important in the assessment of patellofemoral joint instability. the purpose of this study was to report normal value of tttg in males and females in different age groups and to assess the reliability of mri in measuring tttg. all patients presenting with knee pain and normal examinations of knee joint, with a normal mri report, referring to shahidsadoughi hospital of yazd, iran, from april 2014 to september 2014, were included into the study. mr images were studied once by two radiologists and for the second time by one radiologist. mean value of tttg was reported for males and females and in three age groups. intra- and inter-observer reliability was calculated. a total of 98 patients were eligible to evaluate during 6 months (68 male and 30 female). mean tttg was 10.9 ± 2.5 mm in total, which was 10.8 ± 2.8 mm and 11.3 ± 2.3 mm in males and females, respectively (p > 0.05). mean tttg in males ≤ 30 years, 30-50 years and, ≥ 51 years old were 10.8 ± 2.6 mm, 10.8 ±2.7 mm, and 10.8 ± 2.6 mm, respectively; that was 12.1 ± 3.4 mm, 11.4 ± 1.9 mm, and 10.5 ± 1.7 mm in females ≤ 30 years, 31 - 50 years and, ≥ 51 years old, respectively (95 % ci). the coefficient of variation was < 10% for both intra- and inter-observer analysis. the results of the present study showed no significant difference in tttg value between males and females in different age groups. in addition, it demonstrated that mri is a reliable method in assessment of tttg and identified normal value for tttg at 10.9 ± 2.5 mm.
منابع مشابه
Systematic technique-dependent differences in CT versus MRI measurement of the tibial tubercle-trochlear groove distance.
BACKGROUND The tibial tubercle-trochlear groove (TTTG) distance is used to quantify the degree of lateralization of the patellar tendon insertion on the tibial tubercle relative to the deepest part of the trochlear groove. Disagreement exists as to whether the TTTG distance measured on computed tomography (CT) and magnetic resonance imaging (MRI) can be considered equivalent. PURPOSE To compa...
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This open-access article is published and distributed under the Creative Commons Attribution NonCommercial No Derivatives License (http://creativecommons.org/licenses/by-nc-nd/3.0/), which permits the noncommercial use, distribution, and reproduction of the article in any medium, provided the original author and source are credited. You may not alter, transform, or build upon this article witho...
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This open‐access article is published and distributed under the Creative Commons Attribution ‐ NonCommercial ‐ No Derivatives License (http://creativecommons.org/licenses/by‐nc‐nd/3.0/), which permits the noncommercial use, distribution, and reproduction of the article in any medium, provided the original author and source are credited. You may not alter, transform, or build upon this article w...
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عنوان ژورنال:
iranian journal of radiologyجلد ۲۰۱۷، شماره ۵، صفحات ۰-۰
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