title: Is fibromyalgia a cause of failure in the treatment of a painful shoulder?
abstract: OBJECTIVE
  This study aims to review the incidence of fibromyalgia in a cohort of patients who were treated for shoulder pain and address whether a concomitant fibromyalgia could have had detrimental effect on outcomes.
  
  
  METHODS
  The treatment of 286 consecutive patients for shoulder pain was reviewed.
  
  
  RESULTS
  Eighteen patients (6.3 %) were diagnosed as having fibromyalgia, but in 13 of them (72 %), the diagnosis was initially missed. Five patients received a total of 11 surgeries for treatment of the shoulder. At an average follow-up of 15 months (range 12-27), the average new Oxford shoulder score (OS score) was 49 % (range 6-87 %). The average physical component of the Short-Form-12 Healthy Survey (SF-12) was 36 (range 21-55), and the mental component 30 (range 15-46). The Summary Outcome Determination score (SOD score) was 1.3 (range-3 to 6).
  
  
  CONCLUSIONS
  Fibromyalgia occurs relatively frequently in patients who complain of shoulder pain and it can be a cause of failure in the treatment of concomitant painful shoulder conditions.
authors.affiliation: Department of Orthopaedics and Traumatology, Mauriziano Umberto I Hospital, University of Turin Medical School, Largo Turati 62, Turin, Italy.
authors.forename: D
authors.initials: D
authors.lastname: Blonna
authors.forename: E
authors.initials: E
authors.lastname: Bellato
authors.forename: E
authors.initials: E
authors.lastname: Marini
authors.forename: N
authors.initials: N
authors.lastname: Barbasetti
authors.forename: L
authors.initials: L
authors.lastname: Mattei
authors.forename: F
authors.initials: F
authors.lastname: Fissore
authors.forename: C
authors.initials: C
authors.lastname: Arrigoni
authors.forename: F
authors.initials: F
authors.lastname: Castoldi
mesh_terms: D000368:Aged; D000465:Algorithms; D005260:Female; D005356:Fibromyalgia / Q000150:complications* / Q000453:epidemiology*; D006801:Humans; D015994:Incidence; D008297:Male; D008875:Middle Aged; D020069:Shoulder Pain / Q000150:complications* / Q000628:therapy*; D017211:Treatment Failure