1/52 history of calf pain post take off with pain on resisted plantar flexion.
A focal tear involving the lateral intramuscular aponeurosis of the Soleus muscle is noted. This is classed as a Grade 2 strain as there is involvement of the connective tissue, in this case the lateral intramuscular aponeurosis, without retraction.
With muscle injuries it is important to assess the integrity of the connective tissue of the muscle as this effects the patients recovery time. Those with connective tissue involvement will have a significant increase in time to return to play/activity.
Here is a link to an excellent article on the topic if you can get your hands on it. https://www.ncbi.nlm.nih.gov/pubmed/29074478
Transverse ultrasound of the lateral Soleus muscle displaying defect in intramuscular aponeurosis.
Longitudinal ultrasound of the lateral Soleus muscle displaying defect in intramuscular aponeurosis.
Long axis view lateral Soleus muscle.
Short axis view of lateral Soleus muscle.