Reverse Total Shoulder Arthroplasty in an Adult With Achondroplasia.

Achondroplasia can result in many skeletal manifestations, and degenerative osteoarthritis can develop in patients with achondroplasia. Morphologic changes to both the humerus and glenoid-short humeri with patulous metaphyses and a medialized glenoid-can cause challenges that must be overcome to achieve a successful surgical result in a patient with shoulder dysfunction. Because patients with achondroplasia have near-normal life expectancies, the operative shoulder must be functional as well as quite durable in the long term.