5
4
cuff Tear Arthropathy (cTA) was described by charles Neer in 1983
1
and has historically been seen as a significant surgical
challenge.
Non-constrained total or hemi shoulder arthroplasties have poor clinical outcomes for such indications. The majority of
constrained and semi-constrained prostheses developed in the 70’s – 80’s for cTA (in particular all reversed ball and socket
designs) remained purely experimental due to poor range of motion, instability and a high rate of glenoid loosening.
2,3
in 1985, paul grammont (Dijon university hospital - France) designed the first semi-constrained reverse concept that met
the challenges inherent in cuff tear arthropathy cases:
3
Known today as the Depuy DELTA cTA™ Reverse shoulder, this
shoulder prosthesis is a leading treatment for shoulder cuff tear arthropathy
5
, with more than 25 years of heritage
3,4.5
and
40,000
6
cases performed all over the world.
Based on the experience of the DELTA cTA Reverse shoulder, the next generation of implant evolved; the Depuy DELTA
XTEND Reverse shoulder system. it has been designed using the latest scientific, engineering and clinical knowledge to
maximise the clinical outcomes and enhance long-term survivorship in cTA cases by:
•
Respecting the three design features that differentiated the DELTA CTA Reverse Shoulder from previous
designs:
• Joint centre of rotation positioned on the glenoid surface to avoid pull-out torque on the glenoid component.
3,4
• Non-anatomic neck-shaft angle (155°) for joint stability.
3,4
• Optimal Deltoid tensioning to maximise muscle action without over-stretching the tissues.
5,7
•
Reducing the risk of scapular neck erosion while maximising the shoulder range of motion:
• Inferior overlap of the glenoid component allowed by an updated glenosphere design and metaglene fixation
system.
8,9,19
• A high mobility humeral cup design.
10
•
Preserving bone for earlier intervention and faster recovery with:
• Curved back metaglene design.
15,16
• Fluted modular humeral stem design based on 25 years of DePuy GLOBAL
®
anatomic shoulder history.
• Modular eccentric epiphysis options for press-fit application.
• Thinner monobloc humeral stem for cemented application.
Based on the success of the DELTA cTA Reverse shoulder, the DELTA XTEND Reverse shoulder system is the next step
forward for appropriate management of patients with a grossly deficient rotator cuff joint with severe arthropathy. its
clinical outcomes have been reported in the Australian Orthopaedic Association National Joint Replacement Registry.
20
The
DELTA XTEND Reverse Shoulder is just one of the products within the DePuy Synthes Joint Reconstruction shoulder portfolio
that helps you treat your patient more effectively.
Dr Didier capon
France
Dr David collins
usA
prof Anders Ekelund
sweden
Dr Laurent Lafosse
France
prof Lieven
De Wilde
Belgium
Dr cécile Nérot
France
Dr Ludwig seebauer
germany
Dr michael Wirth
usA
The DELTA XTEND Reverse Shoulder System Surgeon Design Team
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