You will be given a definition of a task first, then some input of the task.
Indicate the presence of numerical data in the abstract (whether numerical data plays a key role in medical records), solely using the information from the abstract.

Abstract: We report one case of traumatic dislocation of the tibialis posterior tendon at the ankle level as a lesion of an exceptional rarity which was successfully treated by performing a flap of inverted periosteum. The pathogenetic mechanisms involved, on the basis of the results of anatomic and electromyographic studies performed, appear to be a combination of exertion of the tibialis posterior and hypoplasia of the sulcus. 
Question: Does the abstract contain any numerical data?
Output:
No