Tuberosity of the V Metatarsal Bone

The tuberosity of the V metatarsal bone (t.ossis metatarsalis V, PNA, BNA, JNA) is a protrusion on the lateral surface of the V metatarsal bone, which serves for attachment of muscles and ligaments. This tuberosity is important in maintaining foot stability and preventing dislocations.

The tuberosity of the fifth metatarsal is located on the lateral side of the fifth metatarsal. It consists of two parts: medial and lateral. The medial part is larger and serves to attach the peroneus longus tendon. The lateral part of the tuberosity of the fifth metatarsal bone serves to attach the peroneal muscles, as well as to connect the lateral side of the fifth metatarsal bone with the side of the fourth metatarsal bone.

The importance of the fifth metatarsal tuberosities is that they provide stability to the foot. When the feet are planted on the ground, the tubercles connect to adjacent bones and provide support to the foot. This is especially important when walking and running, when the foot is under heavy load.

However, if the fifth metatarsal tuberosity is damaged or missing, it can lead to a variety of foot problems, including sprains and strains. For example, if the medial tuberosity is missing or damaged, it can cause instability of the foot and lead to dislocations and fractures. If the lateral tuberosity is damaged or missing, it can lead to foot deformity and impaired function.

Thus, the fifth metatarsal tuberosity plays an important role in maintaining foot stability and preventing dislocations and deformities. Therefore, if you have problems with this lumpiness, it is recommended to see a doctor for diagnosis and treatment.

ᐉ Tuberosity of the 3rd metatarsal

_The big toe is the strongest and provides most of the support to the foot. However, it is also susceptible to damage during normal walking or running, when weight bearing occurs primarily on both feet at the same time. Common injuries include fracture of the base of the phalanx of the thumb.