Original articleA prospective arthroscopic study of acute first-time anterior shoulder dislocation in the young: a five-year follow-up study
Section snippets
Materials and methods
From January 1991 to July 1994, we treated 105 patients with 107 AFASDs in the emergency department of our regional, university-affiliated hospital. Thirty-one patients with AFASD were included in this study. They all met the following inclusion criteria: (1) an AFASD, (2) age between 15 and 40 years, (3) dislocation without fracture, and (4) no history of shoulder problems. All patients gave informed consent.
Of the 105 patients, 50 were aged older than 40 years, 7 had fractures (5 greater
Recurrence and instability
At 1 year of follow-up, 1 patient had a recurrence (after 7 months), and 2 patients had subluxations. The instability rate was 7% (2/31). The mean Constant score was 99 (range, 95-100; SD, 1.7), and the mean Rowe score was 98 (range, 67-100; SD, 6.5) (Table I).
At 2 years of follow-up, we found 6 recurrences and 8 subluxations. Four patients had recurrences and subluxations. On average, recurrences occurred at 14 months (range, 7-20 months) after the first dislocation. Of the 6 patients with
Discussion
Redislocation of the shoulder is the most frequent complication of the AFASD. Several studies have shown that the age of the patient at the time of AFASD is the most important factor in predicting the risk of redislocation.12, 14, 15, 16, 20, 28, 30, 33, 36, 37 In our study we also found that age was the most important prognostic factor in recurrent shoulder instability. In patients aged younger than 18 years the instability rate after 5 years of follow-up was 71% (5/7), compared with 55% for
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