کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
2739484 | 1567049 | 2016 | 7 صفحه PDF | دانلود رایگان |
کلمات کلیدی
مقدمه
مواد و روش ها
شرکت کنندگان
ارزیابی کینماتیک
ارزیابی کینماتیک
انالیز داده ها
انالیزهای اماری
نتایج
بحث
محدودیت ها
بحث
شکل 1. طراحی مجموعه ی مارکرها
شکل 2. کینماتیک بیوانفورماتیکی (میانگین و انحراف استاندارد) اندازه گیری شده در یک بیمار ACLD در طی انجام حرکت SLHL. منطقه ی خاکستری زمان به ثانیه است که بین برخورد اولیه (هنگامی که بخشی از پا کف زمین را لمس میکند) و فاز جذبی را نشان میدهد (خمیدگی ماکزیمم). ACLD = نقص رباط صلیبی قدامی. SLHL= فرود امدن پس از جهش روی یک پا.
جدول 1. دموگرافیک بیماران ACLD
جدول 2. کینماتیک تیبیوفمورال پس از برخورد اولیه
جدول 3. دموگرافیک بیمار
شکل 3. SSDs در اافراد سالم و ACLD: A. خمیدگی زانو B. چرخش داخلی C. واروس/والگوس D. حرکت انتقالی خلفی-قدامی و E. حرکت انتقالی مدیال-لترال. ACL. رباط صلیبی قدامی. ACLD. نقص رباط صلیبی قدامی، SSD. اختلاف ساید به ساید
Background/objectiveAnterior cruciate ligament (ACL) rupture results in knee instability, and patients are often unable to return to their previous level of activity. Current assessments rely on passive laxity tests, which do not correlate with function. Dynamic stability may be a better indicator for return to sport. However, equipment for measuring dynamic stability is ill suited for clinical use. The purpose of this study is to evaluate knee kinematics in ACL-deficient patients with a single-legged hop task using a portable motion analysis system. We hypothesize that the assessment task is able to differentiate ACL-deficient knees from healthy knees.MethodsTen ACL-deficient patients and 10 healthy controls were recruited. Participants were instructed to perform a single-legged hop, while kinematics was measured using a portable motion capture system (Opti-Knee; Shanghai Innomotion Inc., Shanghai, China). Kinematic changes after initial contact were examined. Repeatability of the results was examined by calculating the coefficient of variations of the pooled standard deviation of the tibiofemoral displacements. Side-to-side differences were calculated and compared between the two groups.ResultsOne patient could not perform the task. Intraindividual variability was small after initial contact; the coefficient of variation in this region was 13–26%. ACL-deficient knees demonstrated lower flexion range of motion (p = 0.008) and increased internal/external rotation range of motion after landing (p = 0.038), while no significant differences were detected in the healthy group. Only the side-to-side difference in flexion was significantly different between the two groups (p = 0.002).ConclusionThe altered knee kinematics in ACL-deficient patients can be revealed by a portable motion capture system, which may enable the clinical application of kinematic assessment in the evaluation of ACL deficiency.
Journal: Asia-Pacific Journal of Sports Medicine, Arthroscopy, Rehabilitation and Technology - Volume 5, July 2016, Pages 6–12