Short plantar ligament

A fibrous connective tissue structure that supports the arch of the foot.

Short plantar ligament, also known as the plantar calcaneocuboid ligament, connects the calcaneus (heel bone) to the cuboid bone in the foot. It plays a crucial role in maintaining the stability and integrity of the foot's arch, contributing to efficient locomotion.

Terminologia Anatomica

ligamentum plantare breve

System

Skeletal system

Function

The primary function of the short plantar ligament is to support the lateral aspect of the foot's arch, which is vital for proper weight distribution during walking and running. When the foot strikes the ground, the ligament, along with other supporting structures, helps absorb shock and maintain balance, allowing for a more stable foundation. Additionally, it provides a site for muscle attachment, enabling movements that facilitate various activities such as walking, jumping, and running, while also contributing to the overall biomechanics of the foot.

Location

The short plantar ligament is located on the inferior (bottom) side of the foot. It runs from the anterior surface of the calcaneus to the plantar surface of the cuboid bone, situated just beneath the long plantar ligament. This positioning is crucial for its role in stabilizing the lateral column of the foot and supporting the transverse and longitudinal arches. Its relatively short length and solid structure enable it to withstand tension and provide necessary support during various motions of the foot.

Did You Know?

The short plantar ligament is often overlooked compared to other ligaments of the foot but plays a vital role in arch support.
In some individuals, variations in the short plantar ligament's structure can affect foot mechanics, leading to conditions such as flatfoot.
Strengthening the muscles around the foot can help improve the function of the short plantar ligament and overall foot stability.