The real neck prosthesis
Optimal proprioception
Physiological functional recovery
Maximum bone stock preservation
Product range: 6 sizes

The femoral proximal neck anatomy presents a particular trabecular structure that implicates precise distribution of weight bearing stresses.
The JUST prosthesis fits perfectly into the trabecular bone system. Following Wolff’s law, it ricreates a physological bone remodelling, utilizing the same trabecular system for osseointegration.
Wolff’s law
“The elements composing bone does position or remove themselves in the direction of functional pressure, and increase or decrease their mass to reflect the quantity of functional pressure”.

Distal portion
The arches of the inferior trabecular structure support the tail section of the Just prosthesis which acts as a “keystone” guaranteeing it’s stability.
The curved tail section of the Just prosthesis, as well as having an important function in the physiological load transmission, also covers the fundamental role of blocking during the torqueing moment. This curvature, inserted into the “slanting double cylinder system”, made up of the femoral neck and proximal diaphyseal, guarantees rotational stability.
MATERIALS
The JUST stem is made of Titanium Aluminium Niobium forged alloy in compliance with ISO5832/11 Standards.