News : I have a bone left over! .. the Os Trígono or Trigonum


News : I have a bone left over! .. the Os Trígono or Trigonum

Hello to all the friends of the Stock Market of the broker. In our section of the “Corridor Workshop” today we are going to deal with a delicate subject. What if we have a bone left over? What if it bothers us to run?. Today we present you to the Os Trígono or Trigonum, so that you can orient yourself in the consequences of having this special guest on our ankle.

The human foot is, according to Leonardo Da Vinci, a work of art and a masterpiece of engineering, with its 28 bones, 33 small joints, about 40 muscles and tendons, and about a hundred ligaments. However, this number of bones is not always “exact” and we sometimes have supernumerary bones. This means that a variable percentage of the population has some extra bone, and it can be in different locations.

What is the Os Trígono?

He Os Trigonus or Trigonum It is one of these “guest” bones and is located in the back of the ankle, specifically behind the talus, to which it is usually attached by fibers. Whether or not this bone exists may be of congenital cause, that is, it is present at birth. It can also happen that in the adolescent’s bone development, this bone does not fuse properly with the rest of the talus, creating a small additional bone. The presence of this bone it is not pathological in itself, we can have it for our whole lives and not find out if we do not have an X-ray of the area. But sometimes it can be annoying or painful.

Before explaining why our “special guest” causes discomfort, it must be taken into account that all joints are covered in a joint capsule, which is a fibrous tissue that protects and lubricates the joint, in addition to allowing its movement.

In athletes or athletes who perform a great range of ankle motion (especially in flexion, that is to say bringing the fingers down) as sprinters or jumpers the presence of the “os trigonum” can be problematic. This movement can lead to pinching and pinching of the back of the joint capsule. In addition, the tendon of the flexor muscle of the first finger can be affected and inflamed

The pain reported by these athletes resembles a puncture and the sensation of jamming of the joint. Palpation of the area is also often painful.

How to differentiate it?

Because it is located in the posterior region of the ankle, it is important to differentiate this “os trigonum” syndrome from Achilles tendonitis tendonitis, ankle sprains or talus fractures. If, faced with this localized pain and closely related to sudden ankle movements, an X-ray or CT scan is performed, the diagnosis will be relatively obvious.

CT scan of the ankle, lateral view.  The supernumerary bone can be seen in the posterior part.Treatment

The first approach, since we cannot forget that the bone will remain there (if we do not remove it), is as we commented in a previous post, to give it peace and love, protecting, elevating the area, compressing or bandaging and trying to re-educate ) those jerky repetitive movements. If none of this works, the injury is repetitive and / or ankle function is compromised, surgical treatment could be used, removing said bone.

Well, friends of the Broker Stock Exchange, I hope you never have this problem and if unfortunately it is so…. May you cope well! It is more pleasant to meet you at the races with your colleagues in full faculties (although they flatly deny it, they always get healthy in case we beat them, 😀).

Cheers and miles!


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