Thursday, May 19, 2016

Long stem reverse total shoulder to the rescue

A middle aged patient sustained a proximal humeral fracture that was treated elsewhere with a humeral prosthesis as shown below. Note the absence of the greater tuberosity in this reconstruction indicating cuff deficiency.

As a result of this cuff deficiency the humeral head migrated superiorly and the patient developed pseudo paralysis.

A reverse total shoulder was placed, but there was difficulty in clearing the distal cement, so a short stem prosthesis was placed.

The humeral stem loosened.

We revised this arthroplasty using a 6mm diameter long stem prosthesis inserted after drilling the canal with a flexible reamer placed over a bulb-tipped guide wire. The fixation was excellent. Note the slight 'flex' in the prosthetic stem.