Friday, May 13, 2016

Don't get high in shoulder arthroplasty

Getting the height of the humeral component just right can be a challenge.
In the case below, the position of the humeral component is a bit high with respect to the greater tuberosity.

The ideal relationship is shown in the upper figure below. As shown in the lower figure, a high position of the humeral head can place unwanted stress on the rotator cuff.

At surgery it is useful to expose the 'berm' (the superior edge of the humeral neck osteotomy shown by the red arrow) and to assure that the upper edge of the humeral component is slightly below it.

Consultation for those who live a distance away from Seattle.

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