# The Role of the Ultrasonographic Knee Assessment in the Diagnosis of Patellofemoral Pain Syndrome: Ultrasonography and Patellofemoral Pain Syndrome

## TL;DR

This study explores how ultrasound can help diagnose patellofemoral pain syndrome by comparing knee measurements in patients and healthy individuals.

## Contribution

The study identifies the Q angle and sulcus angle as potential ultrasound markers for diagnosing patellofemoral pain syndrome.

## Key findings

- Patients with PFPS had significantly higher Q angles than healthy individuals.
- The sulcus angle was notably higher in PFPS patients compared to controls.
- Cartilage thickness and sulcus depth showed no significant differences between PFPS patients and healthy subjects.

## Abstract

Patellofemoral Pain Syndrome (PFPS) is a common anterior knee compartment pain etiology. It has been aimed to assess the ultrasonographic findings of the patellofemoral joint in patients with PFPS versus healthy individuals.

The current case-control investigation was performed on 30 cases suffering from patellofemoral joint pain and 30 healthy individuals in Isfahan during 2020-21. All cases underwent ultrasonography to assess cartilage thickness, sulcus angle, and sulcus depth. We also measured the Q angle with a manual goniometer.

In healthy individuals, Q angle scores were statistically lower than in the cases group (P=0.002). The sulcus angle was remarkably higher among the patients compared to the controls. The cartilage thickness (P=0.88) and sulcus depth (P=0.543) scores had no statistical difference between the PFPS and healthy subjects (P0.05).

Patients with PFPS had significantly higher Q angle and lower sulcus angle than the healthy controls.