A 50 year old avid weight lifter requested a ream and run arthroplasty to avoid the risks and limitations of a plastic glenoid component.
His preoperative films are shown below. They show typical osteoarthritis. Of note is the cortical hypertrophy of the humerus resulting in a small humeral canal.
At surgery, a humeral component with thin (8mm) stem was selected to spare his canal. Reaming of his endosteal cortex was avoided. The component was fixed with impaction autografting yielding a small filling ratio.
His function at 10 months after surgery is shown here
At two years after surgery, the stability of his implant and the regenerated joint spaces can be seen.
Comment: This canal sparing technique preserves the maximum amount of humeral bone stock while simultaneously providing the stability of a standard length stem.
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