Aequalis PerFORM

Leveraging nearly two decades of clinical experience with the Aequalis glenoid, the Aequalis PerFORM system embodies meaningful advancement without introducing unproven concepts. The first of its kind, the Aequalis PerFORM system is a subchondral preserving glenoid with five backside curvatures, which retains structural support necessary for implant longevity so each restoration can be as unique as the patient.

Aequalis™ PerFORM

The Pursuit of Advanced Patient Care

Aequalis PerFORM leads the way in addressing newly reported factors in glenoid loosening.

A study by Walch, et. al, of 157 arthritic patients has demonstrated that arthritic glenoid curvature is much different than non-arthritic glenoid curvature. Nearly all glenoid reamers available today are offered in one curvature, based upon the average non-arthritic curvature.3

The Aequalis PerFORM System is the first ever to offer multiple backside curvatures per size to better match variable patient anatomy and preserve subchondral bone, a critical factor in preventing glenoid migration and loosening.

Arthritic vs. Non-Arthritic Glenoid Curvature

Arthritic Glenoids

Conventional Reamer Curvature

A Glenoid System as Unique as Each Patient

An Unforeseen Finding

Clinical studies have demonstrated that preserving the glenoid subchondral plate is critical to successful long-term outcomes.1,2

Long-term Glenoid Survivorship

Revision Survivorship

5 Yr

10 Yr

Radiographic Survivorship

An Insightful Discovery

The average arthritic glenoid is 22% flatter than a normal glenoid and has 3x the variance when compared to normal anatomy. Yet, glenoids on the market today generally offer only one radius of curvature.

Arthritic vs. Normal Glenoids


More Variance

A Simple Solution

The first of its kind, the Aequalis PerFORM glenoid system offers implants with multiple backside curvatures to better match arthritic anatomy. As a result, less reaming is required and cortical bone is preserved, providing the structural support necessary for enhancing implant longevity.

Aequalis PerFORM Backside Curvatures

A Millimeter Saved is a Millimeter Earned

Arthritic Glenoids

A recent CT study of arthritic glenoid articular curvatures demonstrates significant variation ranging from nearly flat to very cupped surfaces.

Traditional Reaming

Based upon normal anatomy, most glenoid implants and reamers are offered in a single backside radius of curvature. As a result, subchondral bone is often sacrificed to achieve good fit between the implant the bone.

Aequalis PerFORM Reaming

Designed to uniquely match arthritic anatomy, the Aequalis PerFORM reamers preserve subchondral bone. Backside support matters, ream less and improve the opportunity for implant longevity.

Anatomic in Action

Anatomically Tailored

Precisely Guided

Uncommonly Versatile

Uniquely Agile

1. Gilles Walch, MD; Allan A. Young, MD; Pascal Boileau, MD; Markus Loew, MD; Dominique Gazielly, MD and Daniel Molé, MD. Patterns of Loosening of Polyethylene Keeled Glenoid Components After Shoulder Arthroplasty for Primary Osteoarthritis. Results of a Multicenter Study with More Than Five Years of Follow-up.

2. Gilles Walch, MD; Allan A. Young, MD; Barbara Melis, MD; Dominique Gazielly, MD; Markus Loew, MD; Pascal Boileau, MD. Results of a convex-back cemented keeled glenoid component in primary osteoarthritis: multicenter study with a follow-up greater than 5 years.

3. Tornier Data on File.