Poster 138: Intra-articular Femorotibial Rotation is Associated with Tibial Tubercle-Trochlear Groove Distance
نویسندگان
چکیده
Objectives: A tibial tubercle-trochlear groove (TT-TG) distance of 20 mm is typically used when determining whether tubercle anteromedialization (AMZ) needed for patellar instability. TT-TG distance, however, may depend on the internal/external (IE) rotation tibia in relation to femur, which not controlled for. Without knowledge variability an individual’s influenced by femorotibial rotation, use a specific during pre-operative planning instability lead incorrect decisions AMZ. We hypothesized that knee joint IE related distance. Methods: total 8 independent human cadaveric specimens (age: 32±6; 4 males, females) were utilized. robotic manipulator (ZX165U, Kawasaki Robotics, Wixom, MI, USA) instrumented with universal force/moment sensor was determine under applied moments ±5Nm at full extension. Two reviewers selected trochlear and tuberosity points CT images each specimen define (ICC=0.969). To influence TT-TG, 3D models generated from scans registered tibiofemoral kinematics. Subsequently, linear regression performed relationship between TT-TG. Regression coefficient standard error measurement (α=0.05), determination (r2) reported. Results: Knee averaged 23.0 ± 4.2°. changed 12.1 2.8 over this range. For every degree 0.52 0.07 (p<0.001 r2>0.987). At neutral 14.21 5.0 mm. Conclusions: highly dependent changing rotation. Thus, offset 10° would change 5.2 mm, enough alter surgical decision making or against Physicians should pay close attention measuring their patients, specifically patients found have near key indication treatment [Table: see text][Table: text]
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 w...
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ژورنال
عنوان ژورنال: Orthopaedic Journal of Sports Medicine
سال: 2023
ISSN: ['2325-9671']
DOI: https://doi.org/10.1177/2325967123s00128