title: Long-term prognosis of acute lateral ankle ligamentous sprains: high incidence of recurrences and residual symptoms.
abstract: Acute lateral ankle ligamentous sprains (ALALS) are common injuries. This injury does not always have a favourable long-term outcome. Studies reporting the prognosis of ALALS after functional treatment are scarce.
  
  
  
  To determine the prognosis of functionally treated ALALS, in terms of recurrent ALALS and residual symptoms.
  
  
  
  Retrospective cohort study.
  
  
  
  Patients were recruited from 20 family practices, nine physical therapy practices, the emergency departments of a regional hospital and a university hospital.
  
  
  
  Adult patients with an ALALS caused by an inversion trauma were invited to participate in this study 2.5-5 years after their initial injury.
  
  
  
  Functional treatment of the initial ALALS.
  
  
  
  Acute lateral ankle ligamentous sprain recurrences and residual symptoms.
  
  
  
  A total of 44 patients were included, with an average follow-up period after the initial ankle sprain of 204 weeks (range 150-274 weeks). Eight patients (18.1%) had reinjured their ankle. Explicit pain around the ankle joint at physical examination was experienced by 45.5%. Clinical symptoms of anterior ankle impingement were present in 25% (all athletes), with radiologically confirmed tibiotalar osteophyte bone formation in 82% of them.
  
  
  
  A large proportion of patients with ALALS experience recurrences and persistent symptoms after their initial ankle injury. The high percentage of patients with anterior ankle impingement syndromes illustrates the need for early assessment of this impairment in patients with persistent complaints.
authors.affiliation: Department of Rehabilitation, Nursing Science and Sport, Rudolf Magnus Institute of Neuroscience, University Medical Center Utrecht, Utrecht, The Netherlands h.j.kemler-2@umcutrecht.nl.
authors.forename: Ellen
authors.initials: E
authors.lastname: Kemler
authors.affiliation: Department of Rehabilitation, Nursing Science and Sport, Rudolf Magnus Institute of Neuroscience, University Medical Center Utrecht, Utrecht, The Netherlands.|Royal Netherlands Football Association, Zeist, The Netherlands.
authors.forename: Karin M
authors.initials: KM
authors.lastname: Thijs
authors.affiliation: Julius Center for Health Sciences and Primary Care, University Medical Center Utrecht, The Netherlands.
authors.forename: Ilse
authors.initials: I
authors.lastname: Badenbroek
authors.affiliation: Department of Rehabilitation, Nursing Science and Sport, Rudolf Magnus Institute of Neuroscience, University Medical Center Utrecht, Utrecht, The Netherlands.|Revant Rehabilitation Center, Breda, The Netherlands.
authors.forename: Ingrid G L
authors.initials: IG
authors.lastname: van de Port
authors.affiliation: Julius Center for Health Sciences and Primary Care, University Medical Center Utrecht, The Netherlands.
authors.forename: Arno W
authors.initials: AW
authors.lastname: Hoes
authors.affiliation: Department of Rehabilitation, Nursing Science and Sport, Rudolf Magnus Institute of Neuroscience, University Medical Center Utrecht, Utrecht, The Netherlands.
authors.forename: Frank J G
authors.initials: FJ
authors.lastname: Backx
mesh_terms: D000328:Adult; D016512:Ankle Injuries / Q000150:complications* / Q000628:therapy; D017885:Collateral Ligaments / Q000293:injuries*; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D007592:Joint Diseases / Q000000981:diagnostic imaging / Q000209:etiology*; D008297:Male; D054850:Osteophyte / Q000000981:diagnostic imaging / Q000209:etiology*; D010146:Pain / Q000209:etiology*; D011379:Prognosis; D012008:Recurrence; D012189:Retrospective Studies; D013180:Sprains and Strains / Q000150:complications* / Q000628:therapy; D063189:Symptom Assessment
keywords: Ankle injuries; impingement; long-term consequences.