J Orthop Sports Phys Ther. 2018 Mar;48(3):130-132. doi: 10.2519/jospt.2018.0604.
The use of subtalar joint neutral (STJN) in the assessment and treatment of foot-related musculoskeletal symptomology is common in daily practice and still widely taught. The main pioneer of this theory was Dr Merton L. Root, and it has been labeled with a variety of names: "the foot morphology theory," "the subtalar joint neutral theory," or simply "Rootian theory" or "Root model." The theory's core concepts still underpin a common approach to musculoskeletal assessment of the foot, as well as the consequent design of foot orthoses. The available literature continues to point to Dr Root's theory as the most prevalently utilized. Concurrently, the worth of this theory has been challenged due to its poor reliability and limited external validity. This Viewpoint reviews the main clinical areas of the STJN theory, and concludes with a possible explanation and concerns for its ongoing use. To support our view, we will discuss (1) historical inaccuracies, (2) challenges with reliability, and (3) concerns with validity. J Orthop Sports Phys Ther 2018;48(3):130-132. doi:10.2519/jospt.2018.0604.
距下关节中立位（STJN）在足部相关肌肉骨骼症状的评估和治疗中被广泛应用，这种方法在日常实践中很常见，并且仍在广泛教授。该理论的主要先驱是默顿·L·鲁特（Merton L. Root）博士，它有多种名称：“足部形态学理论”、“距下关节中立位理论”，或简称为“Rootian 理论”或“Root 模型”。该理论的核心概念仍然是足部肌肉骨骼评估的常用方法，也是足部矫形器设计的基础。现有文献继续指出，Root 博士的理论是最常用的理论。同时，由于其可靠性差和外部有效性有限，该理论的价值受到了质疑。本观点回顾了 STJN 理论的主要临床领域，并对其持续应用的可能解释和关注点进行了总结。为了支持我们的观点，我们将讨论（1）历史不准确，（2）可靠性挑战，以及（3）有效性担忧。《美国骨科与运动物理治疗杂志》2018；48（3）：130-132.doi：10.2519/jospt.2018.0604.
