Reverse Shoulder Prosthesis

Indications
Total shoulder prosthesis for glenohumeral osteoarthritis (OA), revision arthroplasty with deficient rotator cuff, pseudoparalysis,
complex fracture (3 or more fragments) of humeral head in elderly patient.

Principes
• Lowering and medialisation of the joint’s centre of rotation
• Extension of adduction range of motion due to resurfacing of scapular pillar
• Option to convert fracture stem to reverse prosthesis without changing the stem

FEATURES
The DUOCENTRIC® product line integrates the biomechanical concepts of a reverse shoulder arthroplasty:
• The humeral stem (cemented or cementless) is available in 4 standard sizes and 2 revision sizes:
- requires 125° humeral cut relative to humeral shaft axis
- has a minimally invasive intramedullary shape with T-shaped cross-section and lateral fi ns. The lateral portion of the
cemented model has holes for tuberosity fi xation for complex fracture cases
• The humeral baseplate available in 2 sizes and 4 heights:
- accepts humeral insert
- has 5 possible settings for anteroposterior offset
- makes it possible to convert 140° cut with a fracture stem to a 125° cut required for reverse prosthesis (special model,
must be requested)
• Humeral insert available as standard model (3 thicknesses) or retaining model (2 thicknesses):
- secured to baseplate through lip and antirotation lug
- allows humerus height and lateralisation to be adjusted