Product Overview

CALIBER® is an expandable interbody spacer designed for a posterior lumbar approach. It is inserted at a contracted height and expanded in situ.

Features and Benefits


Continuous Expansion

Up to 15° of lordosis and up to 5mm of disc height restoration.

Minimal Insertion Height

Inserted at a reduced height to minimize impaction and preserve endplate integrity.

Radiographic Assessment

Radiolucent PEEK endplates allow for improved radiographic assessment compared to titanium.

Research Study

Minimally invasive transforaminal lumbar interbody fusion using expandable technology: a clinical and radiographic analysis of 50 patients

World Neurosurg 90:228–235, 2016