Department of Orthopaedics, Warwick Hospital, Lakin Road, Warwick, CV34 5BW, UK.
Trauma and Orthopaedics, Warwick Hospital, Warwick, UK.
Knee Surg Sports Traumatol Arthrosc. 2020 Feb;28(2):448-453. doi: 10.1007/s00167-019-05640-x. Epub 2019 Jul 30.
Free quadriceps tendon autograft (QTA) has gained popularity for both primary and revision ACL reconstruction. The aim of this study is to measure the dimensions of quadriceps tendon and determine its correlation with patient's height, weight and BMI. This is to provide a guide for patients and surgeons in predicting the suitability of QTA for ACL reconstructions.
A cross-sectional study in which the length and thickness of the quadriceps tendon was measured in 51 Caucasian patients who underwent primary total knee arthroplasty. Exclusion criteria include non-Caucasians and previous tendon pathology. Patients were selected from routine elective total knee arthroplasty list. Tendon length is taken from musculotendinous junction to its insertion. Thickness was measured at midpoint and at distal insertion. Patients' height, weight and BMI were recorded. The correlation between patient physical parameters and tendon dimensions were determined.
Subjects' median age was 65 years (range 44-87), with 34 females and 17 males. Median length of the tendon was 9 mm (range 70-110), and median insertional thickness was 9 mm (7-10 mm). Median thickness at midpoint was 7 mm (range 4-10 mm). There was moderately positive correlation between subjects' height and tendon length (correlation coefficient 0.50), and also between weight and tendon length (correlation coefficient 0.47). There was no significant correlation between subjects' BMI and the tendon length. There was also no significant correlation between tendon thickness and subject's physical parameters.
This study has shown that most patients could provide adequate QTA for ACL reconstruction. It also points to the fact that no investigation is required to predict the adequacy of QTA. Though further studies with larger sample size are required to confirm this, clinician can rely on analysing patients' physical parameter in predicting the adequacy of QTA for ACL reconstruction.
II.
游离股四头肌腱（QTA）在初次和翻修前交叉韧带（ACL）重建中均得到广泛应用。本研究旨在测量股四头肌腱的尺寸，并确定其与患者身高、体重和 BMI 的相关性。这是为了为患者和外科医生提供指导，以预测 QTA 在前交叉韧带重建中的适用性。
这是一项横截面研究，对 51 名接受初次全膝关节置换术的高加索患者的股四头肌腱长度和厚度进行了测量。排除标准包括非高加索人和先前的肌腱病变。患者从常规择期全膝关节置换术名单中选择。肌腱长度从肌-腱交界处测量至其插入处。厚度在中点和远端插入处测量。记录患者的身高、体重和 BMI。确定患者身体参数与肌腱尺寸之间的相关性。
受试者的中位年龄为 65 岁（范围 44-87 岁），其中女性 34 名，男性 17 名。肌腱的中位长度为 9 毫米（范围 70-110 毫米），中位插入厚度为 9 毫米（7-10 毫米）。中点的中位厚度为 7 毫米（范围 4-10 毫米）。受试者身高与肌腱长度呈中度正相关（相关系数 0.50），体重与肌腱长度也呈中度正相关（相关系数 0.47）。受试者 BMI 与肌腱长度无显著相关性。肌腱厚度与受试者的身体参数也无显著相关性。
本研究表明，大多数患者可提供足够的 QTA 用于 ACL 重建。它还指出，无需进行任何调查即可预测 QTA 的充足性。尽管需要进一步的研究来证实这一点，但临床医生可以依靠分析患者的身体参数来预测 QTA 在前交叉韧带重建中的充足性。
II 级。
