11) Just as revisions of hemi-arthroplasty to TSA using a modular stem design have been reported to minimize the complexity of the revision procedure, the same advantages can be expected for revision procedures in which a platform humeral stem
has been used for the initial procedure.
The humeral stem
is intended for cemented or cementless application while the metal-back glenoid baseplate is intended for cementless application with the addition of bone screws for fixation.
In addition, this system allows conversion of a distal humerus hemiarthroplasty to a total elbow arthroplasty without revising the humeral stem
If revision surgery is necessary, the humeral stem
may remain in place and surgeons don't have to take the component out, because the way the threads work allows the surgeon to access them from the posterior side of the elbow.
That way, if revision surgery is necessary, the humeral stem
may remain in place and surgeons don't have to take the component out.
Current humeral stem
designs are frequently modular, to allow for intraoperative decisions made by the surgeon to dictate the final sizing of the device based on individual patient variables.
I have used the innovative, bone-sparing Aequalis Ascend humeral stem
for the last 2 years with outstanding clinical and radiographic results.
The humeral stem
is impacted, and the offset, version, and inclination of the head are determined by trialing with a definitive 4.
This platform enables surgeons to use the same humeral stem
to repair shoulder fractures or perform a total (anatomic) shoulder replacement.
The Affiniti product line features innovative humeral stem
and glenoid component designs as well as advanced instrumentation to maximize both accurate implant positioning and ease of use.
The second test quantifies the resistance of each aforementioned cemented humeral stem
to a static torsional load.
For the humeral prosthesis classification, humeral offset is defined as the horizontal distance between the intramedullary canal and humeral stem
axis to the center of the humeral liner (Fig.