Analysis of the validity and reliability of the smartphone goniometer application in patients with patellafemoral pain by comparing it with universal goniometer and digital inclinometer

Patellofemoral pain (PFP) is one of the most confusing and clinically challenging chronic diseases. It was planned to determine the validity and reliability of the smartphone goniometer application in patients with PFP by comparing it with universal goniometer and digital inclinometer

髌股疼痛综合征（Patellofemoral pain, PFP）是最令人困惑且临床诊疗颇具挑战的慢性疾病之一。本研究旨在通过将智能手机角度计应用程序与通用角度计、数字倾角仪进行对比，评估其在髌股疼痛综合征患者中的效度与信度。