Editorial Commentary: Patellar Tendon-Trochlear Groove Angle Demonstrates Potential as a Measurement of Instability...

Patellar tendon-trochlear groove (PT-TG) angles are reported to be reliably measured within and between observers using magnetic resonance imaging and computerized tomography scan. Furthermore, recent findings suggest PT-TG angles outperform the tibial tuberosity-trochlear groove distance for detecting patellofemoral instability (PFI) between cases and controls. However, current evidence is limited in scope and scale. Therefore, carefully crafted follow-up studies are required to establish a simple best technique for measuring PT-TG angle and to conclusively confirm its utility in managing PFI. Future investigations that seek to establish related clinimetric criteria must adhere to recognized standards that facilitate robust scientific discovery and reporting guidelines, which enable efficient translation of knowledge creation to patient care.