title: Correlation of coracoid thickness and glenoid width: an anatomic morphometric analysis.
abstract: BACKGROUND
  The coracoid has been widely used as a graft to reconstruct anterior glenoid bone defects, as described by the Latarjet and Bristow procedures, with successful results. Nevertheless, at the present, there are no studies correlating the size of the coracoid graft and its relation to the glenoid.
  
  
  OBJECTIVE
  To assess the mediolateral (M-L) and anteroposterior (A-P) thickness of the coracoid process as well as the widest anterior-to-posterior glenoid distance (glenoid width) and to analyze the correlation between these measurements, while comparing these with the A-P coracoid process thickness.
  
  
  METHODS
  Descriptive laboratory study.
  
  
  METHODS
  Sixty-one unpaired, adult human cadaveric scapulae were evaluated. Three examiners performed 3 independent measurements of the largest M-L thickness of the coracoid process and also the widest anterior-to-posterior distance of the glenoid. The A-P coracoid process thickness was also measured to compare for correlations with M-L coracoid thickness.
  
  
  RESULTS
  The glenoid width was 26.38 ± 2.69 mm (range, 20.03-32.35 mm), and the M-L coracoid thickness was 14.51 ± 1.90 mm (range, 9.60-19.31 mm). Calculating the ratio between the M-L thickness of the coracoid and glenoid width, we observed that the coracoid represented 43% to 70% of the glenoid width (54% on average). The A-P coracoid process thickness was 8.37 ± 0.93 mm (range, 6.61-9.76 mm), representing 31% of the glenoid width on average.
  
  
  CONCLUSIONS
  A strong positive and statistically significant relationship between the coracoid process M-L thickness and the anterior-to-posterior glenoid width exists; the coracoid represents, on average, 54% of the glenoid width.
  
  
  CONCLUSIONS
  Most cases of glenoid bone loss in recurrent shoulder dislocation can be reconstructed with the coracoid process to re-establish its anatomy.
authors.affiliation: Faculdade de Medicina do ABC, Rua Drausio 383, Sao Paulo, 05511010, Brazil. rsbueno@hotmail.com
authors.forename: Rogerio Serpone
authors.initials: RS
authors.lastname: Bueno
authors.forename: Roberto Yukio
authors.initials: RY
authors.lastname: Ikemoto
authors.forename: Luis Gustavo Prata
authors.initials: LG
authors.lastname: Nascimento
authors.forename: Luiz Henrique de Oliveira
authors.initials: LH
authors.lastname: Almeida
authors.forename: Eric
authors.initials: E
authors.lastname: Strose
authors.forename: Joel
authors.initials: J
authors.lastname: Murachovsky
mesh_terms: D000328:Adult; D000886:Anthropometry; D002102:Cadaver; D006801:Humans; D012008:Recurrence; D012044:Regression Analysis; D012540:Scapula / Q000033:anatomy & histology* / Q000637:transplantation*; D012783:Shoulder Dislocation / Q000601:surgery; D012785:Shoulder Joint / Q000033:anatomy & histology / Q000601:surgery