Welcome to The UW Shoulder Site @ uwshoulder.com
Please note that information on this site was NOT authored by Dr. Frederic A Matsen III and has not been proofread or intended for general public use. Information was intended for internal use only and is a compilation for random notes and resources.
If you are looking for medical information about the treatment of shoulders, please visit shoulderarthritis.blogspot.com for an index of the many blog entries by Dr. Frederick A Matsen III.
Tornier Shoulder Prostheses
Common US Shoulder Prostheses
|Tornier Aequalis||Tornier Press Fit||Variable Fixed Angle Inclination Neck||Adjustability of Tornier System
Arthroscopic Removal of the Glenoid Component for Failed Total Shoulder Arthroplasty
A screw on the bock of the head (shown above - posterior of stem in left shoulders and anterior in right shoulders) may or may not be used in conjunction with locking of head onto stem. This would make head replacement alone more difficult in a revision surgery and require removal of entire unit, or some fancy drilling or hammering. The screw head accepts a small hex/Allen wrench. The Tornier set has a blue handled driver for this screw. The screw should be removed prior to trying to bang off the head. The head should come off with a bone tamp and a mallet.
The humeral prosthesis can be removed with a medieval appearing adjustable triple claw extractor on slide hammer that comes with the Tornier extractor set. Another removal device in the Tornier revision set is a clamp that hooks under the neck and screws into the Morse taper. This screw in this device can easily become jammed in the extractor during removal of a well cemented prosthesis and will make removal for the extraction device from the prosthesis difficult. You may need to impact the extraction device back unto the prosthesis to unjam the screw on the extraction device or give the extraction device a good wack on the back counter.
Note that Tornier only has a few (three and we broke one) revision extraction sets in the US and plan to request this at least 2 weeks in advance.
Aequalis Modular Cemented
|Possible Modular neck - note stepoff mid
Fractures complexes trois ou quatre fragments de l’humérus proximal : hémiarthroplastie ou arthroplastie inversée? Étude comparative à propos de 40 cas
Tornier Aequalis (designed to be cemented)
|Arthroplasty of the shoulder|
|Design Not Confirmed
Arthroplasty of the shoulder
Earlier generation Tornier prosthesis appear to have a modular neck that allows for variation in the neck inclination angle. You may be able to identify these on xray if you notice a notch in the superior edge of the dorsal fin, where it contacts the humeral body.
|The Influence of Rotator Cuff Disease on the Results of Shoulder Arthroplasty for Primary Osteoarthritis||anterior instability after hemiarthroplasty
Primary Unconstrained Shoulder Arthroplasty in Patients with a Fixed Anterior Glenohumeral Dislocation
Tornier Press Fit
The Tornier Press Fit Shoulder system does not use the screw in the back of the humeral neck to lock the humeral head. You should still have the blue handled screw driver from the Tornier set for peace of mind.
Tornier Aequalis Fracture Shoulder
|Arthroplasty of the shoulder|
Spun around 180 degrees