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首页> 外文期刊>Orthopaedic Journal of Sports Medicine >Can We Accurately Predict the Quadruple Hamstring Graft Diameter From Preoperative Magnetic Resonance Imaging?
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Can We Accurately Predict the Quadruple Hamstring Graft Diameter From Preoperative Magnetic Resonance Imaging?

机译：我们能否通过术前磁共振成像准确预测四重腿筋移植物直径？

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Background: Anterior cruciate ligament (ACL) reconstruction with a quadruple hamstring (QH) autograft is a widely utilized procedure with good outcomes. A graft diameter less than 8 mm, however, has been associated with higher revision rates. Accurately determining the diameter of the hamstring tendon preoperatively can help surgeons plan accordingly. Purpose/Hypothesis: The purpose of our study was to determine whether QH graft size can be reliably predicted from preoperative magnetic resonance imaging (MRI) measurements. We hypothesized that we can achieve a high predicted QH graft size correlation with regard to preoperative and intraoperative measurements. Study Design: Cohort study (diagnosis); Level of evidence, 2. Methods: We evaluated patients undergoing ACL reconstruction using QH autografts. At the time of surgery, the semitendinosus tendon (ST) and gracilis tendon (GT) were harvested and sized and then sized as a QH graft. Preoperative individual ST and GT sizes were determined from T2-weighted fat-saturated MRI at 3 cm above the joint line using correlating axial and coronal images. We then used a predictive chart to predict what the size of the QH graft would be and compared this with the actual measurements. Pearson correlation coefficients between predicted and actual graft sizes were calculated. Results: The predicted GT graft size was within 0.5 mm of the actual size in 45 of 60 (75%) patients and within 1 mm of the actual graft size in 59 of 60 (98%) patients. The predicted GT graft size from MRI measurements correlated with the actual GT graft size ( r = 0.62, P & .00001). The predicted ST graft size was within 0.5 mm of the actual size in 45 of 60 (75%) patients and within 1 mm of the actual graft size in 56 of 60 (93%) patients. The predicted ST graft size from MRI measurements correlated with the actual ST graft size ( r = 0.71, P & .00001). The predicted QH graft size was within 0.5 mm of the actual size in 52 of 60 (87%) patients and within 1 mm of the actual graft size in 60 of 60 (100%) patients. The predicted QH graft size from MRI measurements correlated with the actual QH graft size ( r = 0.81, P & .00001). Conclusion: The current technique can reliably predict the size of a QH graft within 1 mm of the final graft size.
机译：背景：四叉绳肌（QH）自体移植重建前交叉韧带（ACL）是一种广泛使用的手术，效果良好。但是，小于8毫米的移植物直径与更高的翻修率相关。术前准确确定ham绳肌腱的直径可以帮助外科医生进行相应的计划。目的/假设：我们研究的目的是确定术前磁共振成像（MRI）测量是否可以可靠地预测QH移植物的大小。我们假设就术前和术中测量而言，我们可以获得较高的预测QH移植物大小相关性。研究设计：队列研究（诊断）;证据等级2。方法：我们评估了使用QH自体移植进行ACL重建的患者。在手术时，收集并确定半腱肌腱（ST）和tend肌腱（GT）的大小，然后将其大小定为QH移植物。术前个体ST和GT的大小是使用相关的轴向和冠状图像从关节线上方3 cm处的T2加权脂肪饱和MRI确定的。然后，我们使用预测图预测QH移植物的大小，并将其与实际测量值进行比较。计算预测的和实际的移植物大小之间的皮尔逊相关系数。结果：在60例（75％）的患者中，有45例的预测GT移植物尺寸在实际尺寸的0.5毫米以内，在60例（98％）的患者中，有59例的GT移植物实际尺寸在1毫米内。根据MRI测量结果预测的GT移植物尺寸与实际GT移植物尺寸相关（r ＝ 0.62，P ＜.00001）。 60例（75％）患者中的45例的预期ST移植物尺寸在实际大小的0.5毫米以内，60例（93％）患者中56例中的ST移植物实际尺寸在1毫米以内。来自MRI测量的预测的ST移植物尺寸与实际的ST移植物尺寸相关（r ＝ 0.71，P ＜.00001）。 QH移植物的预测尺寸在60名（100％）患者中的60名（100％）的52名患者的实际尺寸的0.5毫米之内，而60例（100％）患者中的60名中实际移植物的尺寸的1毫米以内。来自MRI测量的预测QH移植物大小与实际QH移植物大小相关（r ＝ 0.81，P ＜.00001）。结论：目前的技术可以可靠地预测QH移植物的大小，距离最终移植物大小不超过1毫米。

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