Understanding the Peroneus Longus and Brevis Tests Assessment
To assess the strength and integrity of the **Peroneal tendons** (Peroneus Longus and Brevis), often implicated in lateral ankle stability and tendinopathy.
Watch How It's Done
How do I start?
Patient is sitting or supine. The examiner holds the foot in a slightly plantarflexed and inverted position.
What happens?
The patient is instructed to actively **evert and plantarflex the foot** against the strong resistance of the examiner.
In Plain English
What Does a Positive Result Mean?
Significant **pain and/or weakness** along the course of the peroneal tendons (lateral ankle and foot) during resisted contraction, suggesting tendinopathy or tear.
Helpful Tip:
The contraction of the peroneal muscles can also be used as a distraction force to check for peroneal tendon subluxation.
Safety First
This guide is to help you understand what happens in a clinic. Do not try to diagnose yourself. If you have severe pain, swelling, or cannot put weight on your leg, please visit an urgent care center or your doctor immediately.
Other ankel Tests
Anterior Drawer of the Ankle
To assess the integrity of the **Anterior Talofibular Ligament (ATFL)**, the most commonly injured ligament in lateral ankle sprains.
External Rotation Stress Test (or Syndesmosis Ligament Test)
To assess the integrity of the **Distal Tibiofibular Syndesmosis** (the 'high ankle sprain' ligaments, including the AITFL and PITFL).
Figure of Eight Method of Measuring Ankle Joint Swelling
To quantitatively measure and track **ankle and foot edema (swelling)** volume over time.
Impingement sign ankle (Anterior Ankle Impingement)
To diagnose **Anterior Ankle Impingement Syndrome** (bony or soft tissue impingement at the front of the joint).