The treatment protocol included four days of immobilization in a neutral position with a posterior splint, followed by progression to weight-bearing as tolerated, range of motion exercises, and strengthening. The mean age of the patients at follow-up was 45 years, with a mean time from injury to follow-up of 25 years.
According to the study, 42% of patients reported an ipsilateral ankle injury after their initial sprain, while 16% underwent ankle or Achilles surgery. Despite the presence of osteoarthritis (OA) in 27% of the patients, most cases were not clinically significant. The study reported a mean Patient-Reported Outcomes Measurement Information System-10 (PROMIS-10) score of 53.4 and a mean self-reported foot and ankle score of 42.7.
“Our data indicate that nonoperative management of high ankle sprains without diastasis can result in acceptable long-term functional outcomes, with a low rate of subsequent ankle injuries. While we observed a high incidence of osteoarthritis, most cases were not clinically significant.”
The study concluded that these results could serve as a benchmark for comparing newer and more aggressive treatment approaches for high ankle sprains.
“These data will serve as a comparison when assessing the longer-term outcomes of newer and more aggressive treatment regimens."
Read the full study here!