Gülfırat Ömür, Ekinci Mehmet, Kumak Aliasker, Tazegül Ünsal
Department of Exercises and Sports Science, İstanbul Gelişim University Sports Science Faculty, Istanbul, Turkey.
Department of Orthopaedics and Traumatology, İstanbul Haseki Education Research Hospital, Istanbul, Turkey.
Sci Prog. 2025 Jan-Mar;108(1):368504241304202. doi: 10.1177/00368504241304202.
Evaluating the mechanical-anatomical alignment and angles of the knee joint is crucial for athletes. We aimed to analyse the relationship between lower extremity bone alignment and the importance of the Q angle (QA) in male athletes.
We included 38 male professional football athletes without any alignment or varus-valgus deformity who actively played football in various football clubs in Istanbul. This study was conducted using quantitative research methods within the scope of a cohort study design and employed a correlational survey method. A health specialist at the orthopaedic outpatient clinic of the Haseki Training and Research Hospital, Istanbul, evaluated the participants' lower extremity bone alignment using standing anteroposterior radiographs and assessed the QA using the goniometric measurement method. The anatomical lateral distal femoral angle (aLDFA), medial proximal tibial angle (MPTA) and QA data were analysed to assess lower extremity straightness.
Significant relationships between the right and left leg aLDFA, MPTA and QA values of the participants' lower extremity mechanical axis values and between the aLDFA and right leg QA values (= 0.380, = 0.019) were found. These relationships were attributed to the difference between proximal and distal alignments of the lower extremities. The correlation between QA and certain mechanical alignment parameters was due to unilateral and bilateral symmetrical arrangements of the lower extremities.
The parameters of lower extremity mechanical-anatomical alignment are considered preliminary indicators of relationships among sports injuries, structural factors and predisposition to such injuries. Individual differences in the angular values of mechanical-anatomical alignment and the application of different methods for determining these angles have revealed some uncertainties. We determined the mechanical axis data of football athletes who predominantly used their lower extremities using the most reliable methods and examined the relationship among the right and left leg aLDFA, MPTA and QA values. We believe that our findings provide insights and guidance for experts in the field.
评估膝关节的力学-解剖学对线和角度对运动员至关重要。我们旨在分析男性运动员下肢骨对线与Q角（QA）的重要性之间的关系。
我们纳入了38名在伊斯坦布尔各足球俱乐部积极参赛、无任何对线或内翻-外翻畸形的男性职业足球运动员。本研究在队列研究设计范围内采用定量研究方法，并采用相关性调查方法。伊斯坦布尔哈塞基培训与研究医院骨科门诊的一名健康专家，使用站立位前后位X线片评估参与者的下肢骨对线，并使用测角测量法评估QA。分析解剖学外侧股骨远端角（aLDFA）、内侧胫骨近端角（MPTA）和QA数据，以评估下肢的直线度。
发现参与者下肢力学轴值的左右腿aLDFA、MPTA和QA值之间，以及aLDFA与右腿QA值之间存在显著关系（= 0.380，= 0.019）。这些关系归因于下肢近端和远端对线的差异。QA与某些力学对线参数之间的相关性是由于下肢的单侧和双侧对称排列。
下肢力学-解剖学对线参数被认为是运动损伤、结构因素及其易感性之间关系的初步指标。力学-解剖学对线角度值的个体差异以及确定这些角度的不同方法的应用揭示了一些不确定性。我们使用最可靠的方法确定了主要使用下肢的足球运动员的力学轴数据，并检查了左右腿aLDFA、MPTA和QA值之间的关系。我们相信我们的发现为该领域的专家提供了见解和指导。
