کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
9354066 | 1266798 | 2005 | 6 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Movement of the posterior cruciate ligament during knee flexion--MRI analysis
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کلمات کلیدی
موضوعات مرتبط
علوم پزشکی و سلامت
پزشکی و دندانپزشکی
ارتوپدی، پزشکی ورزشی و توانبخشی
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چکیده انگلیسی
The movement of the posterior cruciate ligament (PCL) during flexion of the living knee is unknown. The purpose of the present study was to analyze the movement of the PCL using magnetic resonance imaging (MRI). The posterior cruciate ligaments in 20 normal knees were visualized using MRI from extension to deep flexion. Sagittal inclination relative to the longitudinal axis of the tibia was measured and analyzed with reference to the patellar tendon (PT) and the anterior cruciate ligament (ACL). Although the PCL was slack in extension, it straightened with anterior inclination (24.1 ± 5.1°) at 90° flexion. At active maximum flexion (129.2 ± 8.1°), the ligament was almost parallel (3.9 ± 7.4° inclination) to the longitudinal axis of the tibia. At passive maximum flexion (158.8 ± 5.8°), the inclination was reversed anteroposteriorly, measuring â23.0 ± 6.7°. The PCL and PT moved in a corresponding manner within 20° of discrepancy. The results of this in vivo study of the PCL have clinical relevance to conservative therapy for PCL knee injuries. The results of this study could also be useful in PCL reconstruction surgery to determine the optimum graft position to allow maximum postoperative motion.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Orthopaedic Research - Volume 23, Issue 2, March 2005, Pages 334-339
Journal: Journal of Orthopaedic Research - Volume 23, Issue 2, March 2005, Pages 334-339
نویسندگان
Takeshi Komatsu, Yoshinori Kadoya, Shigeru Nakagawa, Gen Yoshida, Kunio Takaoka,