How healthcare professionals assess and diagnose ankle injuries
Assessing and diagnosing ankle injuries requires a methodical approach to clinical examination to ensure accurate evaluation and appropriate treatment. A healthcare professional, specifically a foot and ankle specialist, follow a general systematic process encompassing various steps:
Step 1: Initial assessment
An initial assessment begins with a primary survey using the 'ABCDE' principles of resuscitation and trauma care. The healthcare practitioner will ensure the patient's airway, breathing, circulation, disability, and exposure are assessed and managed accordingly.
Afterward, the healthcare practitioner will look for any obvious deformities, open wounds, or signs of severe trauma, then assess the neurovascular status of the affected ankle, checking for pulses, sensation, and motor function.
Step 2: History taking
The healthcare practitioner will then inquire about the mechanism of injury, including any twisting, impact, or sudden movements that occurred. They will also ask about the onset and duration of symptoms, including experience of mild or severe pain, swelling, and difficulty bearing weight. Finally, they must obtain a comprehensive medical history, including any previous ankle injuries, chronic conditions, or relevant medications.
Step 3: Physical examination
After gathering information about the injury, the healthcare practitioner will thoroughly examine the injured ankle. A physical examination will typically includes the following:
- Assessment of signs of swelling, bruising, redness, or deformity
- Palpation of the ankle joint and surrounding structures to identify areas of tenderness and pinpoint the injury site.
- Evaluation of the ankle's range of motion, including dorsiflexion, plantarflexion, inversion, and eversion.
During this step, the practitioner may also conduct specific tests to assess ligament stability and integrity, test muscle strength and function through resisted movements and manual muscle testing, and compare findings with the uninjured ankle to detect asymmetry and abnormalities. Aside from those, any signs of instability will also be noted.
Step 4: Imaging tests
To confirm the diagnosis and assess the extent of the injury, the healthcare practitioner may consider ordering imaging tests. Two examples of such imaging tests are:
- X-rays which are commonly used to evaluate for fractures, dislocations, or bony abnormalities.
- Magnetic resonance imaging (MRI) scans for more detailed images of soft tissues, including ligaments, tendons, and cartilage.