HUMERAL FRACTURE SYSTEM
Key Benefits
AEQUALIS™ Fixation Philosophy
Fix the tuberosities in order to support the head
AEQUALIS™ IM Nail Design
Tuberosity-based screw pattern lags fragments perpendicular to the pull of the muscles
Screw pattern supports periphery of humeral head fragment and avoids the articular surface
Straight nail design avoids rotator cuff insertion
A new perspective on fracture management
Clinical Results
• 24 patients treated with a mean
age of 64 years (range, 27-83 years)
for displaced unstable fractures using
the AEQUALIS™ IM Nail
• Patient follow-up averaged 9 months
(range 6-18 months)
• All fractures healed and all patients
recovered enough motion to perform
daily activities independently
• No patient required further
surgical intervention
Advantages of IM Nailing
• Less extensive soft tissue dissection maximizes periosteal blood supply while preserving
vital surrounding structures.
• Improved construct stability even in the case of comminuted fractures and osteopenic
bone while still maintaining desired elasticity.
• Fracture solutions, such as plating, are believed by some to be too rigid.5
• Efficient procedure, especially when using a percutaneous approach.
Wright delivers another design philosophy
The AEQUALIS™ IM Nail was created from extensive
proximal humerus dimension and geometry studies.1
Additionally, the basic pathophysiology of displaced
unstable 2, 3 and 4-part fractures was revisited,2, 3
resulting in the 5 design principles:
1 Humeral Head Support: The nail must act as a mechanical strut to support humeral
head fragments under compressive forces thereby resisting
valgus/varus subsidence.