A Systematic Review on Quadriceps Angle in Relation to Knee Abnormalities.

Area of Science:

• Orthopedics and Biomechanics
• Knee Joint Anatomy

Background:

• Conflicting conclusions exist regarding the quadriceps (Q) angle and its association with knee problems.
• Understanding the Q angle's variability is crucial for diagnosing and managing knee conditions.

Purpose of the Study:

• To conduct a comprehensive review of recent studies on the quadriceps (Q) angle.
• To analyze variations in Q angle measurements across different conditions and populations.

Main Methods:

• Systematic evaluation of recent scientific literature on the Q angle.
• Analysis of Q angle variations based on measurement techniques.
• Comparison between symptomatic and non-symptomatic individuals.
• Examination of differences between males and females.
• Assessment of unilateral versus bilateral Q angles.
• Investigation of Q angles in adolescent boys and girls.

Main Results:

• Limited scientific data supports the belief that Q angles are more significant in symptomatic patients or that limb sides are equivalent.
• Young adult females exhibit higher mean Q angles compared to males.

Conclusions:

• The study highlights inconsistencies in current research regarding the clinical significance of the Q angle.
• Differences in Q angles between sexes, particularly higher values in females, warrant further investigation for potential implications in knee health.