title: A stress fracture of the base of the acromion: a case report.
abstract: BACKGROUND
  Stress fractures of the base of the acromion are rare and tend to progress well when conservatively treated. The need for surgery due to this type of fracture has only been reported in two case reports.
  
  
  METHODS
  A 39-year-old patient, manual laborer, with a stress fracture at the base of the acromion that required surgical treatment due to persistent symptoms and consolidation failure.
  
  
  CONCLUSIONS
  We described a new mechanism of injury for stress fractures of the base of the acromion. After the failure of conservative treatment, the patient exhibited good results with osteosynthesis with a plate and screws, with no need for a bone graft.
authors.forename: Eduardo Angeli
authors.initials: EA
authors.lastname: Malavolta
authors.affiliation: Shoulder and Elbow Group, Institute of Orthopedics and Traumatology, School of Medicine, University of São Paulo (Universidade de São Paulo; USP), Address: Rua Ovidio Pires de Campos, 333, São Paulo, SP, Brazil. drjorgeassuncao@gmail.com.
authors.forename: Jorge Henrique
authors.initials: JH
authors.lastname: Assunção
authors.forename: Edwin Eiji
authors.initials: EE
authors.lastname: Sunada
authors.forename: Mauro Emilio Conforto
authors.initials: ME
authors.lastname: Gracitelli
authors.forename: Arnaldo Amado
authors.initials: AA
authors.lastname: Ferreira Neto
mesh_terms: D000174:Acromion / Q000293:injuries* / Q000601:surgery*; D000328:Adult; D015775:Fractures, Stress / Q000175:diagnosis* / Q000601:surgery*; D006801:Humans; D008297:Male