Nov 2, 2022
Different joint-preserving techniques for
treatment of preosteoarthritic, constitutional static (type C1)
posterior shoulder instability (PSI) have been proposed, including
posterior glenoid open wedge osteotomy and bone graft augmentation.
However, the techniques are demanding, the reported complication
and reoperation rates are high, and posterior decentering cannot
reliably be reversed.
In conclusion, over the follow-up period of 2
years, the PACS procedure significantly improved outcome scores in
patients who had preosteoarthritic constitutional static posterior
shoulder instability, especially in younger patients with less
severe glenoid retroversion and posterior decentering of the
humeral head. However, similar to other techniques, the PACS
procedure needs to be considered a symptomatic therapy that does
not reverse the underlying cause or stop the progressive pathology.
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