Neer Award 2008: Arthropathy after primary anterior shoulder dislocation--223 shoulders prospectively followed up for twenty-five years.

Background: Shoulder dislocation may cause arthropathy, but the natural history of this evolution is not well described. We therefore conducted a radiographic follow-up 25 years after the primary shoulder dislocation.

Methods: A prospective Swedish multicenter study (1978-1979) included 257 shoulders in 255 patients (age, 12-40 years) with a first-time anterior shoulder dislocation.

Documentation of dislocation arthropathy of the shoulder "area index": a better method to objectify the humeral osteophyte?

We suggest a method to validate the Samilson-Prieto classification system of dislocation arthropathy of the shoulder. Based on a mean standard sagital measure of the humeral head, we calculate an area index for the humeral osteophyte. The application of this method is done on a previous published series of 56 shoulders with a follow-up time of 15 years minimum after surgery with the Bankart or Bristow repairs.