DistaLization IN REVERSE SHOULDER ARTHROPLASTY

a DSA between 40° and 65° results in better active anterior elevation  and abduction 

Case example:
​using an onlay system, the distalization is 26 mm and DSA angle is 71%

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using an inlay system, the DSA is reduced to 62 degrees and distatlization is 17 mm

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Maybe distalization greater than 20-25 mm may result in a difficult reduction. A lower neck cut, smaller sphere ,  or using an inlay stem are options. I think (opinion) the preop planning software to include DSA to anticipate tightness of shoulder reduction